Almost 70 years have passed since the Great Patriotic War, and the memories still haunt the residents of Russia to this day. In wartime, Soviet fighters were the main weapon against the enemy. Most often, I-16 fighters hovered in the sky, which was called the donkey among themselves. In the west of the country, this model of aircraft accounted for more than 40 percent. For some time it was the best fighter aircraft developed by the famous aircraft designer Polikarpov, providing for the retraction of the landing gear.
It was in a world with retractable landing gear. Most of The body of the I-16 is made of duralumin, a very light material. Every year the model of this fighter was improved, the hull was strengthened, a more powerful engine was installed, and the steering gear was changed. On the plane, the fuselage consisted entirely of beams and was covered with duralumin plates.
The main enemy of the Soviet WWII fighter I-16 was the Messerschmitt Bf 109. It was made entirely of steel, the landing gear was retractable, the powerful engine - the Fuhrer's iron bird - the best aircraft of the Second World War German troops.
The developers of the Soviet and German fighter model tried to develop high speed and active takeoff in the aircraft, but paid little attention to maneuverability and stability, which is why many pilots died after losing control.
Soviet aircraft designer Polikarpov worked to reduce the size of the aircraft and lighten its weight. The car turned out to be short and rounded at the front. Polikarpov was confident that with a lighter weight of the aircraft, its maneuverability would improve. The length of the wing did not change; previously there were no flaps or flaps. The cockpit was small, the pilot had poor visibility, it was inconvenient to aim, and ammunition consumption increased. Of course, such a fighter could no longer win the title of “Best Aircraft of World War II.”
German aircraft designers were the first to use a liquid-cooled engine in the production of a winged aircraft, due to which it retained good maneuverability and speed. The front part remained elongated and well streamlined. It was the best aircraft of the Second World War from the German side. However, the motor has become more vulnerable than before in previous versions.
Of course, the German ones with powerful engines and an aerodynamic shape were superior to their Soviet counterparts in speed, accuracy and flight altitude. The features of German aircraft gave an additional trump card in the hands of the enemy; pilots could attack not only frontally or from behind, but also from above, and then again rise into the clouds, hiding from Soviet pilots. The I-16 pilots had to exclusively defend themselves; an active attack was out of the question - the forces were too unequal.
Another advantage of German technology was communication. All aircraft were equipped with radio stations, which allowed the pilots to agree on attack tactics Soviet fighters and warn of danger. Some domestic models had radio stations installed, but it was almost impossible to use them due to the poor signal and poor quality of the equipment. But nevertheless, for our patriotic pilots the I-16 was the best aircraft of the Second World War.
April 22, 2011, 10:41 pmThe famous U-2 (after the death of designer Polikarpov, renamed Po-2). It was produced for 25 years from 1928 to 1953. The main combat use is night “harassment raids” on the enemy’s front line. Sometimes up to six or seven were carried out during the night with fairly accurate bombing from an extremely low altitude. The Germans nicknamed the plane "Coffee Grinder" and " Sewing machine"). 23 pilots who fought on the U-2 were awarded the title of Hero of the Soviet Union. +1
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I-16 ("Donkey") - the main Soviet fighter at the beginning of the war. The photo was taken in the fall of 1941 on the Leningrad Front.
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The main Soviet attack aircraft is the Il-2 (ours called it “Humpbacked” and “Flying Tank”, and the Germans called it “Butcher”). It was used at low altitudes, attracting fire not only from enemy anti-aircraft artillery, but also from infantry small arms. Until 1943, the title of Hero of the Soviet Union was awarded for 30 combat missions on the Il-2.
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Assessing the decisive role of aviation as the main strike force in the fight for the spread of Bolshevism and the defense of the state, in the first five-year plan the leadership of the USSR set a course for creating its own large air force, autonomous from other countries.
In the 20s, and even in the early 30s, USSR aviation had a fleet of aircraft, mostly foreign-made (only Tupolev aircraft appeared - ANT-2, ANT-9 and its subsequent modifications, which later became the legendary U-2, etc.) d.). The aircraft that were in service with the Red Army were multi-brand, had outdated designs and unimportant technical condition. In the 20s, the USSR purchased a small number of German Junkers-type aircraft and a number of other types to service the air routes of the North / explore the Northern Sea Route / and carry out government special flights. It should be noted that civil aviation practically did not develop in the pre-war period, with the exception of the opening of a number of unique, “demonstration” airlines or occasional flights of ambulance and service aviation.
During the same period, the era of airships ended, and the USSR built it in the early 30s successful designs“soft” (frameless) airships of type “B”. As an aside, it should be noted about the development of this type of aeronautics abroad.
In Germany, the famous rigid airship “Graf Zeppepelin”, which explored the North, was equipped with cabins for passengers, had a significant flight range and a fairly high cruising speed (up to 130 km/h or more), provided by several Maybach-designed engines. There were even several dog sleds on board the airship as part of expeditions to the North. The American airship "Akron" is the largest in the world, with a volume of 184 thousand cubic meters. m carried 5-7 aircraft on board and transported up to 200 passengers, not counting several tons of cargo over a distance of up to 17 thousand km. without landing. These airships were already safe, because... were filled with the inert gas helium, and not hydrogen as at the beginning of the century. Low speed, low maneuverability, high cost, difficulty in storage and maintenance predetermined the end of the era of airships. Experiments with balloons also came to an end, proving the latter’s unsuitability for active combat operations. A new generation of aviation with new technical and combat performance was needed.
In 1930, our Moscow Aviation Institute was created - after all, the replenishment of factories, institutes and design bureaus of the aviation industry with experienced personnel was of decisive importance. The old cadres of pre-revolutionary education and experience were clearly not enough; they were thoroughly eliminated and were in exile or in camps.
Already by the Second Five-Year Plan (1933-37), aviation workers had a significant production base, the basis for the further development of the air force.
In the thirties, by order of Stalin, demonstration, but in fact test, flights of bombers “camouflaged” as civilian aircraft were carried out. The aviators Slepnev, Levanevsky, Kokkinaki, Molokov, Vodopyanov, Grizodubova and many others distinguished themselves.
In 1937, Soviet fighter aviation passed combat tests in Spain and demonstrated technical lag. Polikarpov's aircraft (type I-15,16) were defeated by the latest German aircraft. The race for survival has begun again. Stalin gave designers individual assignments for new aircraft models, bonuses and benefits were distributed widely and generously - the designers worked tirelessly and demonstrated a high level of talent and preparedness.
At the March 1939 Plenum of the CPSU Central Committee, People's Commissar of Defense Voroshilov noted that the Air Force, compared to 1934, had grown in personnel by 138 percent... The aircraft fleet as a whole had grown by 130 percent.
Heavy bomber aircraft, which were assigned the main role in the upcoming war with the West, has doubled in 4 years, while other types of bomber aircraft, on the contrary, have decreased by half. Fighter aircraft increased two and a half times. The altitude of aircraft was already 14-15 thousand meters. The technology for the production of aircraft and engines was put on stream, stamping and casting were widely introduced. The shape of the fuselage changed, the aircraft acquired a streamlined shape.
The use of radios on board aircraft began.
Before the war, great changes took place in the field of aviation materials science. In the pre-war period, there was a parallel development of heavy aircraft of all-metal construction with duralumin skins and light maneuverable aircraft of mixed structures: wood, steel, canvas. As it expands raw material base and the development of the aluminum industry in the USSR all greater application Aluminum alloys were found in aircraft construction. There was progress in engine building. The M-25 air-cooled engines with a power of 715 hp and the M-100 water-cooled engines with a power of 750 hp were created.
At the beginning of 1939, the USSR government convened a meeting in the Kremlin.
It was attended by leading designers V.Ya.Klimov, A.A.Mikulin, A.D.Shvetsov, S.V.Ilyushin, N.N.Polikarpov, A.A.Arkhangelsky, A.S.Yakovlev, head of TsAGI and a lot others. The People's Commissar of the aviation industry at that time was M.M. Kaganovich. Possessing a good memory, Stalin was quite well aware of the design features of aircraft; all important issues regarding aviation were resolved by Stalin. The meeting outlined measures for further accelerated development of aviation in the USSR. Until now, history has not conclusively refuted the hypothesis of Stalin’s preparation for an attack on Germany in July 1941. It was on the basis of this assumption about the planning of Stalin’s attack on Germany (and further for the “liberation” of Western countries), adopted at the “historic” plenum of the CPSU Central Committee in August 1939 and this fact, incredible for that (or any other) time, of the sale of advanced German equipment and technology in the USSR seems explainable. A large delegation of Soviet aviation workers, who traveled to Germany twice shortly before the war, received fighters, bombers, guidance systems, and much more, which made it possible to dramatically advance the level of domestic aircraft production. It was decided to increase the combat power of aviation, because it was from August 1939 that the USSR began covert mobilization and was preparing strikes against Germany and Romania.
Mutual exchange of information on the state of the armed forces of the three states (England, France and the USSR), represented in Moscow in August 1939, i.e. before the start of the partition of Poland, showed that the number of first-line aircraft in France was 2 thousand. Of these, two thirds were completely modern aircraft. By 1940, it was planned to increase the number of aircraft in France to 3000 units. British aviation, according to Marshal Burnet, had about 3,000 units, and the potential production was 700 aircraft per month. German industry underwent mobilization only at the beginning of 1942, after which the number of weapons began to increase sharply.
Of all the domestic fighter aircraft ordered by Stalin, the most successful variants were the LAGG, MiG and YAK. The IL-2 attack aircraft brought its designer Ilyushin a lot of excitement. Manufactured initially with protection of the rear hemisphere (two-seater), in anticipation of the attack on Germany, it did not suit the customers with its extravagance.” S. Ilyushin, who did not know all of Stalin’s plans, was forced to change the design to a single-seat version, i.e. bring the structure closer to the “clear sky” aircraft. Hitler violated Stalin's plans and at the beginning of the war the plane urgently had to be returned to its original design.
On February 25, 1941, the Central Committee of the All-Union Communist Party of Bolsheviks and the Council of People's Commissars adopted a resolution “On the reorganization of the aviation forces of the Red Army.” The resolution provided additional measures rearmament of air units. According to plans future war The task was set to urgently form new air regiments, and, as a rule, equip them with new aircraft. The formation of several airborne corps began.
The doctrine of war on “foreign territory” and with “little bloodshed” gave rise to the appearance of the “clear sky” aircraft, intended for unpunished raids on bridges, airfields, cities, and factories. Before the war, hundreds of thousands
young men were preparing to transfer to the new SU-2 aircraft, developed according to Stalin’s competition, of which it was planned to produce 100-150 thousand units before the war. This required accelerated training of the corresponding number of pilots and technicians. The SU-2 is essentially a Soviet Yu-87, but in Russia it did not stand the test of time, because There was never a “clear sky” for either country during the war.
Air defense zones with fighter aircraft were formed, anti-aircraft artillery. An unprecedented conscription into aviation began, voluntarily and forcibly. Almost all of the small civil aviation was mobilized into the Air Force. Dozens of aviation schools were opened, incl. super-accelerated (3-4 months) training, traditionally the officers at the helm or control handle of the aircraft were replaced by sergeants - an unusual fact and evidence of haste in preparing for war. Airfields (about 66 airfields) were urgently moved to the borders, and supplies of fuel, bombs, and shells were brought in. The raids on German airfields and the Ploieşti oil fields were carefully and in great secrecy detailed...
On June 13, 1940, the Flight Test Institute (FLI) was formed, and other design bureaus and research institutes were formed during the same period. In the war with the Soviet Union, the Nazis assigned a special role to their aviation, which by that time had already gained complete air supremacy in the West. Basically, the plan for using aviation in the East was the same as the war in the West: first to gain air supremacy, and then to transfer forces to support the ground army.
Having outlined the timing of the attack on the Soviet Union, the Nazi command set the following tasks for the Luftwaffe:
1.Destroy Soviet aviation with a surprise attack on Soviet airfields.
2.Achieve complete air supremacy.
3. After solving the first two tasks, switch aviation to supporting ground forces directly on the battlefield.
4. Disrupt the work of Soviet transport, complicate the transfer of troops both in the front line and in the rear.
5. Bombard large industrial centers - Moscow, Gorky, Rybinsk, Yaroslavl, Kharkov, Tula.
Germany dealt a crushing blow to our airfields. In just 8 hours of the war, 1,200 aircraft were lost, there was a massive death of flight personnel, storage facilities and all supplies were destroyed. Historians noted the strange “crowding” of our aviation at airfields on the eve of the war and complained about the “mistakes” and “miscalculations” of the command (i.e. Stalin) and assessment of events. In fact, “crowding” foreshadows plans for a super-massive strike on targets and confidence in impunity, which did not happen. The Air Force flight personnel, especially the bomber ones, suffered heavy losses due to the lack of support fighters; the tragedy of the death of perhaps the most advanced and powerful air fleet in the history of mankind occurred, which had to be revived again under enemy attacks.
It must be admitted that the Nazis managed to largely implement their plans for an air war in 1941 and the first half of 1942. Almost all available forces of Hitler's aviation were thrown against the Soviet Union, including units withdrawn from the Western Front. It was assumed that after the first successful operations, part of the bomber and fighter formations would be returned to the West for the war with England. At the beginning of the war, the Nazis had not only quantitative superiority. Their advantage was also the fact that the pilots who took part in the air attack had already gone through a serious training in combat with French, Polish and English pilots. They also had a fair amount of experience interacting with their troops, acquired in the war against the countries of Western Europe. Old types of fighters and bombers, such as I-15, I-16, SB, TB-3 could not compete with the newest Messerschmitts. and Junkers. Nevertheless, in the ensuing air battles, even at obsolete types aircraft, Russian pilots caused damage to the Germans. From June 22 to July 19, Germany lost 1,300 aircraft in air battles alone.
Here is what the German General Staff Officer Greffath writes about this:
“During the period from June 22 to July 5, 1941, the German air force lost 807 aircraft of all types, and from July 6 to July 19 - 477.
These losses indicate that despite the surprise achieved by the Germans, the Russians were able to find the time and strength to provide decisive resistance.”
On the very first day of the war, fighter pilot Kokorev distinguished himself by ramming an enemy fighter, the whole world knows the feat of the Gastello crew (the latest research on this fact suggests that the ramming crew was not Gastello’s crew, but was the crew of Maslov, who flew with Gastello’s crew on an attack enemy columns), who threw his burning car onto a concentration of German equipment. Despite the losses, the Germans brought more and more fighters and bombers into battle in all directions. They sent 4,940 aircraft to the front, including 3,940 German, 500 Finnish, 500 Romanian, and achieved complete air supremacy.
By October 1941, the Wehrmacht armies approached Moscow, the cities supplying components for aircraft factories were occupied, the time had come to evacuate the factories and design bureaus of Sukhoi, Yakovlev and others in Moscow, Ilyushin in Voronezh, all factories in the European part of the USSR demanded the evacuation.
Aircraft production in November 1941 decreased by more than three and a half times. Already on July 5, 1941, the Council of People's Commissars of the USSR decided to evacuate from central regions country parts of the equipment of some aircraft instrument factories to duplicate their production in Western Siberia, and after some time a decision had to be made to evacuate the entire aircraft industry.
On November 9, 1941, the State Defense Committee approved schedules for the restoration and startup of evacuated factories and production plans.
The task was set not only to restore aircraft production, but also to significantly increase their quantity and quality. In December 1941, the aircraft production plan was fulfilled by less than 40 percent, and engines by only 24 percent. In the most difficult conditions, under bombs, in the cold, cold of Siberian winters, backup factories were launched one after another. Technologies were refined and simplified, new types of materials were used (without compromising quality), women and teenagers took over the machines.
Lend-Lease supplies were also of no small importance for the front. Throughout the Second World War, 4-5 percent of aircraft were delivered. general production aircraft and other weapons manufactured in the USA. However, a number of materials and equipment supplied by the USA and England were unique and irreplaceable for Russia (varnishes, paints, other chemicals, devices, instruments, equipment, medicines, etc.), which cannot be described as “insignificant” or secondary.
A turning point in the work of domestic aircraft factories occurred around March 1942. At the same time, the combat experience of our pilots grew.
In the period from November 19 to December 31, 1942 alone, the Luftwaffe lost 3,000 combat aircraft in the battles for Stalingrad. Our aviation began to act more actively and showed all its combat power in the North Caucasus. Heroes of the Soviet Union appeared. This title was awarded both for the number of aircraft shot down and for the number of combat sorties.
In the USSR, the Normandie-Niemen squadron was formed, staffed by French volunteers. The pilots fought on Yak aircraft.
Average monthly aircraft production rose from 2.1 thousand in 1942 to 2.9 thousand in 1943. In total, in 1943, the industry produced 35 thousand aircraft, 37 percent more than in 1942. In 1943, factories produced 49 thousand engines, almost 11 thousand more than in 1942.
Back in 1942, the USSR surpassed Germany in the production of aircraft - this was due to the heroic efforts of our specialists and workers and the “complacency” or unpreparedness of Germany, which had not mobilized industry in advance for war conditions.
In the Battle of Kursk in the summer of 1943, Germany used significant quantities of aircraft, but the power of the Air Force ensured air supremacy for the first time. So, for example, in just one hour on one of the days of the operation, a force of 411 aircraft was struck, and so on in three waves during the day.
By 1944, the front received about 100 aircraft daily, incl. 40 fighters. The main combat vehicles have been modernized. Aircraft with improved combat qualities appeared: YAK-3, PE-2, YAK 9T,D, LA-5, IL-10. German designers also modernized the aircraft. “Me-109F, G, G2”, etc. appeared.
Towards the end of the war, the problem of increasing the range of fighter aircraft arose - the airfields could not keep up with the front. Designers proposed installing additional gas tanks on airplanes, and jet weapons began to be used. Radio communications developed, and radar was used in air defense. The bomb attacks were getting stronger and stronger. Thus, on April 17, 1945, bombers of the 18th Air Army in the Königsberg area carried out 516 sorties in 45 minutes and dropped 3,743 bombs with a total weight of 550 tons.
In the air battle for Berlin, the enemy took part in 1,500 combat aircraft based at 40 airfields near Berlin. This is the most intense air battle in history, and the highest level of combat training on both sides should be taken into account. The Luftwaffe featured aces who shot down 100,150 or more aircraft (a record of 300 downed combat aircraft).
At the end of the war, the Germans used jet aircraft, which were significantly faster than propeller aircraft in speed (Me-262, etc.). However, this did not help either. Our pilots in Berlin flew 17.5 thousand combat sorties and completely destroyed the German air fleet.
Analyzing military experience, we can conclude that our aircraft, developed in the period 1939-1940. had constructive reserves for subsequent modernization. In passing, it should be noted that not all types of aircraft were accepted into service in the USSR. For example, in October 1941, the production of MiG-3 fighters was stopped, and in 1943, the production of IL-4 bombers.
Aircraft weapons were also improved. in 1942, a large-caliber 37 mm aircraft gun was developed, and later a 45 mm caliber gun appeared.
By 1942, V.Ya. Klimov developed the M-107 engine to replace the M-105P, adopted for installation on water-cooled fighters.
Greffoat writes: “Considering that the war with Russia, like the war in the West, would be lightning fast, Hitler intended, after achieving the first successes in the East, to transfer bomber units, as well as the necessary number of aircraft, back to the West. In the East, air formations intended to directly support German troops, as well as military transport units and a number of fighter squadrons were to remain ... "
German aircraft created in 1935-1936. at the beginning of the war there was no longer any possibility of radical modernization. According to the German General Butler, “The Russians had the advantage that in the production of weapons and ammunition they took into account all the features of warfare in Russia and ensured maximum simplicity of technology. As a result of this, Russian factories produced a huge amount of weapons, which were distinguished by their great simplicity of design. It was relatively easy to learn to wield such a weapon...”
Second World War fully confirmed the maturity of domestic scientific and technical thought (this ultimately ensured the further acceleration of the introduction of jet aviation).
Nevertheless, each country followed its own path in aircraft design.
The USSR aviation industry produced 15,735 aircraft in 1941. In the difficult year of 1942, during the evacuation of aviation enterprises, 25,436 aircraft were produced, in 1943 - 34,900 aircraft, in 1944 - 40,300 aircraft, in the first half of 1945, 20,900 aircraft were produced. Already in the spring of 1942, all factories evacuated from the central regions of the USSR to the Urals and Siberia had fully mastered the production of aviation equipment and weapons. Most of these factories in new locations in 1943 and 1944 produced several times more production than before the evacuation.
Germany had in addition own resources resources of conquered countries. In 1944, German factories produced 27.6 thousand aircraft, and our factories produced 33.2 thousand aircraft in the same period. In 1944, aircraft production was 3.8 times higher than in 1941.
In the first months of 1945, the aircraft industry prepared equipment for the final battles. Thus, the Siberian Aviation Plant N 153, which produced 15 thousand fighters during the war, transferred 1.5 thousand modernized fighters to the front in January-March 1945.
The successes of the rear made it possible to strengthen the country's air force. By the beginning of 1944, the Air Force had 8,818 combat aircraft, and the German - 3,073. In terms of the number of aircraft, the USSR exceeded Germany by 2.7 times. By June 1944, the German Air Force had only 2,776 aircraft at the front, and our Air Force - 14,787. By the beginning of January 1945, our Air Force had 15,815 combat aircraft. The design of our aircraft was much simpler than that of American, German or British aircraft. This partly explains such a clear advantage in the number of aircraft. Unfortunately, it is not possible to compare the reliability, durability and strength of our and German aircraft, as well as to analyze the tactical and strategic use of aviation in the war of 1941-1945. Apparently, these comparisons would not be in our favor and would conditionally reduce such a striking difference in numbers. Nevertheless, perhaps, simplifying the design was the only way out in the absence of qualified specialists, materials, equipment and other components for the production of reliable and high-quality equipment in the USSR, especially since, unfortunately, in the Russian army they traditionally take “numbers”, and not skill.
Aircraft weapons were also improved. in 1942, a large-caliber 37 mm aircraft gun was developed, and later a 45 mm caliber gun appeared. By 1942, V.Ya. Klimov developed the M-107 engine to replace the M-105P, adopted for installation on water-cooled fighters.
The fundamental improvement of the aircraft is its transformation from a propeller-driven aircraft to a jet aircraft. To increase the flight speed, a more powerful engine is installed. However, at speeds above 700 km/h, an increase in speed from engine power cannot be achieved. The way out is to use jet propulsion. A turbojet /TRD/ or liquid jet /LPRE/ engine is used. In the second half of the 30s, jet aircraft were intensively created in the USSR, England, Germany, Italy, and later in the USA. In 1938, the world's first German jet engines, BMW and Junkers, appeared. In 1940, the first Campini-Caproni jet aircraft, created in Italy, made test flights; later the German Me-262, Me-163 XE-162 appeared. In 1941, a Gloucester aircraft with a jet engine was tested in England, and in 1942 a jet aircraft, the Aircomet, was tested in the USA. In England, the Meteor twin-engine jet was soon created, which took part in the war. In 1945, the Meteor-4 plane set a world speed record of 969.6 km/h.
In the USSR in the initial period practical work work on the creation of jet engines was carried out in the direction of liquid-propellant rocket engines. Under the leadership of S.P. Korolev and A.F. Tsander, designers A.M. Isaev and L.S. Dushkin developed the first domestic jet engines. The pioneer of turbojet engines was A.M. Lyulka. At the beginning of 1942, G. Bakhchivandzhi made the first flight on a domestic jet aircraft. Soon this pilot died while testing the aircraft. Work on the creation of a jet aircraft practical application resumed after the war with the creation of the Yak-15, MiG-9 using German YuMO jet engines.
In conclusion, it should be noted that the Soviet Union entered the war with numerous, but technically backward fighter aircraft. This backwardness was, in essence, an inevitable phenomenon for a country that had only recently embarked on the path of industrialization that Western European states and the United States had followed in the 19th century. By the mid-20s of the 20th century, the USSR was an agricultural country with a half-illiterate, mostly rural population and a tiny percentage of engineering, technical and scientific personnel. Aircraft manufacturing, engine manufacturing and non-ferrous metallurgy were in their infancy. Suffice it to say that in Tsarist Russia they did not produce ball bearings and carburetors at all for aircraft engines, aircraft electrical equipment, control and aeronautical instruments. Aluminum, wheel tires and even copper wire had to be purchased abroad.
Over the next 15 years, the aviation industry, along with related and raw materials industries, was created practically from scratch, and simultaneously with the construction of the largest air force in the world at that time.
Of course, with such a fantastic pace of development, serious costs and forced compromises were inevitable, because we had to rely on the available material, technological and personnel base.
The most complex knowledge-intensive industries - engine building, instrument making, and radio electronics - were in the most difficult situation. It must be admitted that the Soviet Union was unable to overcome the gap from the West in these areas during the pre-war and war years. The difference in the “starting conditions” turned out to be too great and the time allotted by history was too short. Until the end of the war, we produced engines created on the basis of foreign models purchased back in the 30s - Hispano-Suiza, BMW and Wright-Cyclone. Their repeated forcing led to overstressing of the structure and a steady decrease in reliability, and to bring our own to mass production promising developments, as a rule, it was not possible. The exception was the M-82 and its further development, the M-82FN, which gave birth to perhaps the best Soviet fighter of the war, the La-7.
During the war years, the Soviet Union was unable to establish serial production of turbochargers and two-stage superchargers, multifunctional propulsion automation devices similar to the German “Kommandoherat”, powerful 18-cylinder air-cooled engines, thanks to which the Americans surpassed the 2000, and then 2500 hp mark. With. Well, by and large, no one has seriously engaged in work on water-methanol boosting of engines. All this greatly limited aircraft designers in creating fighters with higher performance characteristics than the enemy.
No less serious restrictions were imposed by the need to use wood, plywood and steel pipes instead of scarce aluminum and magnesium alloys. The irresistible weight of the wooden and mixed construction forced us to weaken the weapons, limit the ammunition load, reduce the fuel supply and save on armor protection. But there was simply no other way out, because otherwise it would not have been possible to even bring the flight data of Soviet aircraft closer to the characteristics of German fighters.
For a long time, our aircraft industry compensated for the lag in quality through quantity. Already in 1942, despite the evacuation of 3/4 production capacity aviation industry, the USSR produced 40% more combat aircraft than Germany. In 1943, Germany made significant efforts to increase the production of combat aircraft, but nevertheless the Soviet Union built 29% more of them. Only in 1944, the Third Reich, through the total mobilization of the resources of the country and occupied Europe, caught up with the USSR in the production of combat aircraft, but during this period the Germans had to use up to 2/3 of their aviation in the West, against the Anglo-American allies.
By the way, we note that for each combat aircraft produced in the USSR there were 8 times fewer machine tools, 4.3 times less electricity and 20% fewer workers than in Germany! Moreover, more than 40% of workers in the Soviet aviation industry in 1944 were women, and over 10% were teenagers under 18 years of age.
The given figures indicate that Soviet aircraft were simpler, cheaper and more technologically advanced than German ones. Nevertheless, by the middle of 1944, their best models, such as the Yak-3 and La-7 fighters, surpassed German aircraft of the same type and contemporary ones in a number of flight parameters. The combination of fairly powerful engines with high aerodynamic and weight efficiency made it possible to achieve this, despite the use of archaic materials and technologies designed for simple conditions production, outdated equipment and low-skilled workers.
It can be argued that the named types in 1944 accounted for only 24.8% of the total production of fighter aircraft in the USSR, and the remaining 75.2% were older types of aircraft with worse flight characteristics. We can also recall that in 1944 the Germans were already actively developing jet aviation, having achieved considerable success in this. The first samples of jet fighters were put into mass production and began to arrive in combat units.
Nevertheless, the progress of the Soviet aircraft industry during the difficult war years is undeniable. And his main achievement is that our fighters managed to recapture from the enemy low and medium altitudes, at which attack aircraft and short-range bombers operated - the main striking force of aviation on the front line. This ensured the successful combat operation of the Ilovs and Pe-2s against German defensive positions, force concentration centers and transport communications, which, in turn, contributed to the victorious offensive of the Soviet troops at the final stage of the war.
By the beginning of the war, there were significantly more MiG-3 fighters in service than other aircraft. However, the “third” MiG was not yet sufficiently mastered by combat pilots, and the retraining of most of them was not completed.
Two MiG-3 regiments were quickly formed with a large percentage of testers familiar with them. This partly helped in eliminating piloting deficiencies. But still, the MiG-3 lost even to the I-6 fighters, common at the beginning of the war. While superior in speed at altitudes above 5,000 m, at low and medium altitudes it was inferior to other fighters.
This is both a disadvantage and at the same time an advantage of the “third” MiG. The MiG-3 is a high-altitude aircraft, all the best qualities of which were manifested at an altitude of over 4500 meters. It found use as a high-altitude night fighter in the air defense system, where its high ceiling of up to 12,000 meters and speed at altitude were decisive. Thus, the MiG-3 was mainly used until the end of the war, in particular, guarding Moscow.
In the very first battle over the capital, on July 22, 1941, Mark Gallay, a pilot of the 2nd Separate Air Defense Fighter Squadron of Moscow, shot down an enemy plane in a MiG-3. At the beginning of the war, one of the ace pilots, Alexander Pokryshkin, flew on the same plane and won his first victory.
Yak-9: the “king” of modifications
Until the end of the 30s, the design bureau of Alexander Yakovlev produced light, mainly sports aircraft. In 1940, the Yak-1 fighter, which has excellent flight qualities, was launched into production. At the beginning of the war, the Yak-1 successfully repelled German pilots.
Already in 1942, the Yak-9 began to enter service with our Air Force. The new Soviet vehicle had high maneuverability, allowing for dynamic combat close to the enemy at low and medium altitudes.
It was the Yak-9 that turned out to be the most popular Soviet fighter of the Great Patriotic War. It was produced from 1942 to 1948, in total almost 17 thousand aircraft were built.
The Yak-9's design used duralumin instead of heavy wood, making the aircraft lighter and leaving room for modifications. It was the Yak-9’s ability to upgrade that became its main advantage. It had 22 main modifications, of which 15 were mass-produced. This includes a front-line fighter, fighter-bomber, interceptor, escort, reconnaissance aircraft, special purpose passenger aircraft and training aircraft.
The most successful modification is considered to be the Yak-9U fighter, which appeared in the fall of 1944. Suffice it to say that his pilots called him “the killer.”
La-5: disciplined soldier
At the beginning of the Great Patriotic War, German aviation had an advantage in the skies of the USSR. But in 1942, a Soviet fighter appeared that could fight on equal terms with German aircraft - this is the La-5, developed at the Lavochkin Design Bureau.
Despite its simplicity - the La-5 cockpit did not have even the most basic instruments like an attitude indicator - the pilots immediately liked the plane.
Lavochkin's new plane had a strong design and did not fall apart even after dozens of direct hits. At the same time, the La-5 had impressive maneuverability and speed: turn time was 16.5-19 seconds, speed was above 600 km/h.
Another advantage of the La-5 is that, as a disciplined soldier, it did not perform the “spin” aerobatics without a direct order from the pilot, and if it got into a spin, it came out of it on the first command.
La-5 fought in the skies over Stalingrad and the Kursk Bulge, ace pilot Ivan Kozhedub fought on it, and the famous Alexey Maresyev flew on it.
Po-2: night bomber
The Po-2 (U-2) aircraft is considered the most popular biplane in the history of world aviation. When creating a training aircraft in the 1920s, Nikolai Polikarpov did not imagine that there would be another, serious application for his unpretentious machine.
During World War II, the U-2 developed into an effective night bomber. Aviation regiments armed exclusively with U-2s appeared in the Soviet Air Force. It was these biplanes that carried out more than half of all Soviet bomber missions during the war.
“Sewing machines” - that’s what the Germans called the U-2s that bombed their units at night. One biplane could make several sorties per night, and given the maximum bomb load of 100-350 kg, the aircraft could drop more ammunition than a heavy bomber.
It was on Polikarpov’s biplanes that the famous 46th Guards Taman Aviation Regiment fought. Four squadrons of 80 pilots, 23 of whom received the title of Hero of the Soviet Union. For their courage and aviation skill, the Germans nicknamed the girls Nachthexen - “night witches.” During the war years, the women's air regiment flew 23,672 combat missions.
In total, 11 thousand U-2 biplanes were produced during the war. They were produced at aircraft factory No. 387 in Kazan. Cabins for airplanes and skis for them were mass-produced at the plant in Ryazan. Today it is the State Ryazan Instrument Plant (GRPZ), part of KRET.
It was only in 1959 that the U-2, renamed Po-2 in 1944 in honor of its creator, ended its impeccable thirty-year service.
IL-2: winged tank
Il-2 is the most produced combat aircraft in history; in total, more than 36 thousand aircraft were produced. Il-2 attacks brought huge losses to the enemy, for which the Germans nicknamed the attack aircraft “Black Death”, and among our pilots they called this bomber “humpbacked”, “winged tank”, “concrete plane”.
The IL-2 entered production just before the war - in December 1940. The first flight on it was made by the famous test pilot Vladimir Kokkinaki. These serial armored attack aircraft entered service at the beginning of the war.
The Il-2 attack aircraft became the main striking force of Soviet aviation. The key to excellent combat performance was a powerful aircraft engine, armored glass necessary to protect the crew, as well as high-speed aircraft guns and rockets.
The best enterprises in the country, including those that are part of Rostec today, worked on the creation of components for the most mass-produced attack aircraft in history. The leading enterprise for the production of ammunition for aircraft was the famous Tula Instrument Design Bureau. Transparent armored glass for glazing the Il-2 canopy was produced at the Lytkarino optical glass plant. The assembly of engines for attack aircraft was carried out in the workshops of plant No. 24, today known as the Kuznetsov enterprise. The propellers for the attack aircraft were produced in Kuibyshev at the Aviaagregat plant.
Thanks to modern technologies at that time, the IL-2 became a real legend. There was a case when an attack aircraft returned from a mission and was hit more than 600 times. After quick repair“winged tanks” were sent into battle again.
In World War II, aviation was one of the main branches of the military and played a very important role during the fighting. It is no coincidence that each of the warring parties sought to ensure a constant increase in the combat effectiveness of their aviation by increasing the production of aircraft and their continuous improvement and renewal. More widely than ever before military sphere Scientific and engineering potential was involved, many research institutes and laboratories, design bureaus and testing centers operated, through whose efforts the latest military equipment was created. It was a time of unusually rapid progress in aircraft manufacturing. At the same time, the era of evolution of aircraft with piston engines, which had reigned supreme in aviation since its inception, seemed to be ending. The combat aircraft of the end of the Second World War were the most advanced examples of aviation technology created on the basis of piston engines.
A significant difference between the peacetime and war periods of the development of combat aviation was that during the war the effectiveness of equipment was determined directly by experiment. If in peacetime military specialists and aircraft designers, ordering and creating new aircraft models, relied only on speculative ideas about the nature of a future war or were guided by limited experience of local conflicts, then large-scale military operations dramatically changed the situation. Practice air battles became not only a powerful catalyst in accelerating the progress of aviation, but also the only criterion when comparing the quality of aircraft and choosing the main directions for further development. Each side improved its aircraft based on own experience combat operations, resource availability, technology capabilities and the aviation industry as a whole.
During the war years, a large number of aircraft were created in England, the USSR, the USA, Germany and Japan, which played a significant role in the armed struggle. Among them there are many outstanding examples. A comparison of these machines is of interest, as is a comparison of the engineering and scientific ideas that were used in their creation. Of course, among the numerous types of aircraft that took part in the war and represented different schools of aircraft construction, it is difficult to single out the undeniably best. Therefore, the choice of cars is to some extent conditional.
Fighters were the main means of gaining air superiority in the fight against the enemy. The success of combat operations of ground troops and other types of aviation and the safety of rear facilities largely depended on the effectiveness of their actions. It is no coincidence that it was the fighter class that developed most intensively. The best of them are traditionally called the Yak-3 and La-7 (USSR), North American P-51 Mustang (Mustang, USA), Supermarine Spitfire (England) and Messerschmitt Bf 109 ( Germany). Among the many modifications of Western fighters, the P-51D, Spitfire XIV and Bf 109G-10 and K-4 were selected for comparison, that is, those aircraft that were mass-produced and entered service with the military. air force at the final stage of the war. All of them were created in 1943 - early 1944. These vehicles reflected the wealth of combat experience already accumulated by that time by the warring countries. They became, as it were, symbols of military aviation equipment of their time.
Before you compare different types fighters, it is worth saying a little about the basic principles of comparison. The main thing here is to keep in mind those conditions combat use for which they were created. The war in the East showed that in the presence of a front line, where the main force of armed struggle was ground troops, aviation was required to have relatively low flight altitudes. The experience of air battles on the Soviet-German front shows that the vast majority of them were fought at altitudes of up to 4.5 km, regardless of the altitude of the aircraft. Soviet designers, while improving fighters and engines for them, could not ignore this circumstance. At the same time, the English Spitfires and American Mustangs were distinguished by their higher altitude, since the nature of the actions for which they were designed was completely different. In addition, the P-51D had a much longer range to escort heavy bombers and was therefore significantly heavier than Spitfires, German Bf 109s and Soviet fighters. Thus, since British, American and Soviet fighters were created for different combat conditions, the question of which of the machines as a whole was the most effective loses its meaning. It is advisable to compare only the main technical solutions and features of the machines.
Otherwise it will be the case with German fighters. They were intended for air combat on both the Eastern and Western fronts. Therefore, they can quite reasonably be compared with all Allied fighters.
So what made the best fighters of World War II stand out? What was their fundamental difference from each other? Let's start with the main thing - with the technical ideology laid down by the designers in the designs of these aircraft.
The most unusual in terms of the concept of creation were, perhaps, the Spitfire and the Mustang.
“It’s not just a good plane, it’s a Spitfire!” - this assessment by the English test pilot G. Powell undoubtedly applies to one of the last fighting versions of the fighter of this family - the Spitfire XIV, the best fighter of the British air force during the war. It was the Spitfire XIV that shot down the German Me 262 jet fighter in an air battle.
When creating the Spitfire in the mid-30s, the designers tried to combine seemingly incompatible things: high speed, characteristic of the high-speed monoplane fighters that were then coming into use, with excellent maneuverability, altitude and takeoff and landing characteristics inherent in biplanes. The goal was largely achieved. Like many other high-speed fighters, the Spitfire had a cantilever monoplane design with well-streamlined shapes. But this was only an external resemblance. For its weight, the Spitfire had a relatively large sizes, which gave a small load per unit of bearing surface, much less than that of other monoplane fighters. Hence, excellent maneuverability in the horizontal plane, high ceiling and good takeoff and landing properties. This approach was not something exceptional: Japanese designers, for example, did the same. But the creators of the Spitfire went further. Due to the high aerodynamic drag of a wing of such significant size, it was impossible to count on achieving a high maximum flight speed - one of the most important indicators of the quality of fighter aircraft of those years. To reduce drag, they used profiles with a much smaller relative thickness than other fighters and gave the wing an elliptical planform. This further reduced aerodynamic drag when flying at high altitude and in maneuver modes.
The company managed to create an outstanding combat aircraft. This does not mean that the Spitfire was without any shortcomings. They were. For example, due to the low wing load, it was inferior to many fighters in terms of acceleration properties during a dive. It responded more slowly in roll to the pilot’s actions than German, American, and especially Soviet fighters. However, these shortcomings were not fundamental, and in general the Spitfire was undoubtedly one of the strongest air combat fighters, which demonstrated excellent qualities in action.
Among the many variants of the Mustang fighter, the greatest success fell on the planes equipped with English Merlin engines. These were the P-51B, C and, of course, the P-51D - the best and most famous American fighter of the Second World War. Since 1944, it was these aircraft that ensured the safety of heavy American B-17 and B-24 bombers from attacks by German fighters and demonstrated their superiority in battle.
The main distinguishing feature of the Mustang in terms of aerodynamics was the laminar wing, which was installed on a combat aircraft for the first time in world aircraft manufacturing practice. Special mention should be made about this “highlight” of the aircraft, born in the laboratory of the American NASA research center on the eve of the war. The fact is that the opinion of experts regarding the advisability of using a laminar wing on fighters of that period is ambiguous. If before the war high hopes were placed on laminar wings, since under certain conditions they had less aerodynamic drag compared to conventional ones, then the experience with the Mustang diminished the initial optimism. It turned out that in real operation such a wing is not effective enough. The reason was that to implement laminar flow on part of such a wing, very careful surface finishing and high precision in maintaining the profile were required. Due to the roughness that arose when applying protective paint to the aircraft, and even slight inaccuracies in the profiling that inevitably appeared in mass production (slight undulations of thin metal skin), the effect of laminarization on the P-51 wing was greatly reduced. In terms of their load-bearing properties, laminar profiles were inferior to conventional ones, which caused difficulties in ensuring good maneuverability and takeoff and landing properties.
At low angles of attack, laminar wing profiles (sometimes called laminated) have less aerodynamic drag than conventional airfoils.
In addition to lower resistance, laminar profiles had better speed properties - with equal relative thickness, the effects of air compressibility (wave crisis) appeared in them at higher speeds than on conventional profiles. This had to be taken into account even then. When diving, especially at high altitudes, where the speed of sound is significantly less than that of the ground, aircraft began to reach speeds at which features associated with approaching the speed of sound already appeared. It was possible to increase the so-called critical speed either by using higher speed profiles, which turned out to be laminar, or by reducing the relative thickness of the profile, while putting up with the inevitable increase in the weight of the structure and a reduction in wing volumes, often used (including on the P-51D) for placement of gas tanks and. Interestingly, due to the much smaller relative thickness of the profiles, the wave crisis on the Spitfire wing occurred at a higher speed than on the Mustang wing.
Research at the English aviation research center RAE showed that, due to the significantly smaller relative thickness of the wing profiles, the Spitfire fighter at high speeds had a lower aerodynamic drag coefficient than the Mustang. This was explained by the later manifestation of the wave flow crisis and its “softer” nature.
If air battles were fought at relatively low altitudes, the crisis phenomena of air compressibility almost did not manifest themselves, so the need for a special high-speed wing was not acutely felt.
The path to creating the Soviet Yak-3 and La-7 aircraft turned out to be very unusual. Essentially, they were deep modifications of the Yak-1 and LaGG-3 fighters, developed in 1940 and mass-produced.
In the Soviet Air Force at the final stage of the war there was no fighter more popular than the Yak-3. At that time it was the lightest fighter aircraft. The French pilots of the Normandie-Niemen regiment, who fought on the Yak-3, spoke about its combat capabilities this way: “The Yak-3 gives you complete superiority over the Germans. On the Yak-3, two people can fight against four, and four can fight against sixteen!”
A radical redesign of the Yak design was undertaken in 1943 with the goal of dramatically improving flight characteristics with a very modest power plant power. The decisive direction in this work was to lighten the aircraft (including by reducing the wing area) and significantly improve its aerodynamics. Perhaps this was the only opportunity to qualitatively promote the aircraft, since the Soviet industry had not yet mass-produced new, more powerful engines suitable for installation on the Yak-1.
Such a path of development of aviation technology, extremely difficult to implement, was extraordinary. The usual way to improve the complex of aircraft flight characteristics then was to improve aerodynamics without noticeable changes in the dimensions of the airframe, as well as to install more powerful engines. This was almost always accompanied by a noticeable weight gain.
The designers of the Yak-3 coped with this difficult task brilliantly. It is unlikely that in aviation during the Second World War one can find another example of similar and so effectively completed work.
The Yak-3, compared to the Yak-1, was much lighter, had a smaller relative profile thickness and wing area, and had excellent aerodynamic properties. The aircraft's power supply has increased significantly, which has dramatically improved its rate of climb, acceleration characteristics and vertical maneuverability. At the same time, such an important parameter for horizontal maneuverability, takeoff and landing as the specific wing load has changed little. During the war, the Yak-3 turned out to be one of the easiest fighters to pilot.
Of course, in tactical terms, the Yak-3 did not at all replace aircraft that were more distinguished strong weapons And longer duration combat flight, but perfectly complemented them, embodying the idea of a light, high-speed and maneuverable air combat vehicle, designed primarily to combat enemy fighters.
One of the few, if not the only fighter with an air-cooled engine, which can rightfully be considered one of the best air combat fighters of the Second World War. Using the La-7, the famous Soviet ace I.N. Kozhedub shot down 17 German aircraft (including the Me-262 jet fighter) out of 62 he destroyed on La fighters.
The history of the La-7 is also unusual. At the beginning of 1942, on the basis of the LaGG-3 fighter, which turned out to be a rather mediocre combat vehicle, the La-5 fighter was developed, which differed from its predecessor only in the power plant (the liquid-cooled engine was replaced with a much more powerful two-row “star”). During the further development of the La-5, the designers focused on its aerodynamic improvement. During the period 1942-1943. La brand fighters were the most frequent “guests” in the full-scale wind tunnels of the leading Soviet aviation research center TsAGI. The main goal Such tests were aimed at identifying the main sources of aerodynamic losses and identifying design measures that would help reduce aerodynamic drag. An important feature of this work was that the proposed design changes did not require major alterations to the aircraft or changes in the production process and could be carried out relatively easily by serial factories. It was truly “jewelry” work, when seemingly mere trifles produced a rather impressive result.
The fruit of this work was the La-5FN, which appeared at the beginning of 1943 - one of the strongest Soviet fighters of that time, and then the La-7 - an aircraft that rightfully took its place among the best fighters of the Second World War. If, during the transition from the La-5 to the La-5FN, an increase in flight performance was achieved not only due to better aerodynamics, but also thanks to a more powerful engine, then the improvement in the characteristics of the La-7 was achieved solely by means of aerodynamics and a reduction in the weight of the structure. This plane had a speed of 80 km/h more than the La-5, of which 75% (that is, 60 km/h) was due to aerodynamics. Such an increase in speed is equivalent to an increase in engine power by more than a third, without increasing the weight and dimensions of the aircraft.
The best features of an air combat fighter were embodied in the La-7: high speed, excellent maneuverability and rate of climb. In addition, compared to other fighters discussed here we're talking about, it had greater survivability, since only this aircraft had an air-cooled engine. As is known, such motors are not only more viable than liquid-cooled engines, but also serve as a kind of protection for the pilot from fire from the front hemisphere, since they have large cross-sectional dimensions.
The German fighter Messerschmitt Bf 109 was created around the same time as the Spitfire. Like the English aircraft, the Bf 109 became one of the most successful examples of a combat vehicle during the war and went through a long path of evolution: it was equipped with more and more powerful engines, improved aerodynamics, operational and aerobatic characteristics. In terms of aerodynamics, the most significant changes were last made in 1941, when the Bf 109F appeared. Further improvement of flight data was achieved mainly through the installation of new engines. Externally latest modifications This fighter - the Bf 109G-10 and K-4 differed little from the much earlier Bf 109F, although they had a number of aerodynamic improvements.
This aircraft was the best representative of the light and maneuverable combat vehicle of Hitler's Luftwaffe. Throughout almost the entire Second World War, Messerschmitt Bf 109 fighters were among the best examples of aircraft in their class, and only towards the end of the war did they begin to lose their position. It turned out to be impossible to combine the qualities inherent in the best Western fighters, designed for relatively high combat altitudes, with the qualities inherent in the best Soviet “medium-altitude” fighters.
Like their English colleagues, the designers of the Bf 109 tried to combine a high maximum speed with good maneuverability and takeoff and landing qualities. But they solved this problem in a completely different way: unlike the Spitfire, the Bf 109 had a large specific wing load, which made it possible to achieve high speed, and to improve maneuverability they used not only the well-known slats, but also flaps, which at the right time the battle could be deviated by the pilot at a small angle. The use of controlled flaps was a new and original solution. To improve takeoff and landing characteristics, in addition to automatic slats and controlled flaps, hovering ailerons were used, which worked as additional sections of flaps; A controlled stabilizer was also used. In short, the Bf 109 had a unique system of direct lift control, largely characteristic of modern aircraft with their inherent automation. However, in practice, many of the designers' decisions did not take root. Due to the complexity, it was necessary to abandon the controlled stabilizer, hovering ailerons, and flap release system in combat. As a result, in terms of its maneuverability, the Bf 109 was not very different from other fighters, both Soviet and American, although it was inferior to the best domestic aircraft. The takeoff and landing characteristics turned out to be similar.
Aircraft manufacturing experience shows that gradual improvement combat aircraft almost always accompanied by an increase in his weight. This is due to the installation of more powerful and therefore heavier engines, an increase in fuel reserves, an increase in the power of weapons, the necessary structural reinforcements and other related measures. Eventually there comes a time when the reserves of a given design are exhausted. One of the limitations is the specific wing load. This, of course, is not the only parameter, but one of the most important and common to all aircraft. Thus, as Spitfire fighters were modified from variant 1A to XIV and Bf 109 from B-2 to G-10 and K-4, their specific wing load increased by about a third! Already the Bf 109G-2 (1942) had 185 kg/m2, while the Spitfire IX, which was also released in 1942, had about 150 kg/m2. For the Bf 109G-2, this wing load was close to the limit. With its further growth, the flight, maneuverability and takeoff and landing characteristics of the aircraft sharply deteriorated, despite the very effective mechanization of the wing (slats and flaps).
Since 1942, German designers have been improving their best air combat fighter under very strict weight restrictions, which greatly limited the possibilities for qualitative improvement of the aircraft. But the creators of the Spitfire still had sufficient reserves and continued to increase the power of the installed engines and strengthen the weapons, without particularly taking into account the increase in weight.
The quality of their mass production has a great influence on the aerodynamic properties of aircraft. Careless manufacturing can negate all the efforts of designers and scientists. This doesn't happen very rarely. Judging by captured documents, in Germany, conducting a comparative study of the aerodynamics of German, American and British fighters at the end of the war, they came to the conclusion that the Bf 109G had worst quality production performance, and, in particular, for this reason its aerodynamics turned out to be the worst, which can most likely be extended to the Bf 109K-4.
From the above it is clear that in terms of the technical concept of creation and aerodynamic design features, each of the compared aircraft is completely original. But they also have a lot common features: well-streamlined shapes, careful engine bonneting, well-developed local aerodynamics and aerodynamics of cooling devices.
As for the design, Soviet fighters were much simpler and cheaper to produce than British, German and, especially, American aircraft. Scarce materials were used in very limited quantities. Thanks to this, the USSR was able to ensure a high rate of aircraft production in conditions of severe material restrictions and a lack of qualified labor. It must be said that our country finds itself in the most difficult situation. From 1941 to 1944 inclusively, a significant part of the industrial zone, where many metallurgical enterprises were located, was occupied by the Nazis. Some factories were evacuated inland and production was set up in new locations. But a significant part of the production potential was still irretrievably lost. In addition, a large number of skilled workers and specialists went to the front. They were replaced at the machines by women and children who could not work at the appropriate level. And yet, the aircraft industry of the USSR, although not immediately, was able to meet the needs of the front for aircraft.
Unlike the all-metal Western fighters, Soviet aircraft made extensive use of wood. However, metal was used in many of the power elements, which actually determined the weight of the structure. That is why, in terms of weight perfection, the Yak-3 and La-7 were practically no different from foreign fighters.
In terms of technological sophistication, ease of access to individual units and ease of maintenance in general, the Bf 109 and Mustang looked somewhat preferable. However, Spitfires and Soviet fighters were also well adapted to combat conditions. But according to these very important characteristics, both the quality of equipment and the level of automation, the Yak-3 and La-7 were inferior to Western fighters, the best of which in terms of automation were german planes(not only Bf 109, but also others).
The most important indicator of an aircraft’s high flight performance and its combat effectiveness as a whole is the power plant. It is in aircraft engine building that the latest achievements in the field of technology, materials, control systems and automation are primarily implemented. Engine building is one of the most knowledge-intensive branches of the aircraft industry. Compared to an airplane, the process of creating and fine-tuning new engines takes much longer and requires more effort.
During the Second World War, England occupied a leading position in aircraft engine building. It was Rolls-Royce engines that equipped the Spitfires and the best versions of the Mustangs (P-51B, C and D). It can be said without exaggeration that it was the installation of the English Merlin engine, which was produced in the USA under license by Packard, that made it possible to realize the great capabilities of the Mustang and brought it into the category of elite fighters. Before this, the P-51, although original, was a rather mediocre aircraft in terms of combat capabilities.
A feature of English engines, which largely determined their excellent characteristics, was the use of high-grade gasoline, the nominal octane number of which reached 100-150. This made it possible to apply a greater degree of air pressurization (more precisely, the working mixture) into the cylinders and thereby obtain greater power. The USSR and Germany could not meet the aviation needs for such high-quality and expensive fuel. Typically, gasoline with an octane rating of 87-100 was used.
A characteristic feature that united all the engines that were installed on the compared fighters was the use of two-speed drive centrifugal superchargers (MCP), providing the required altitude. But the difference between Rolls-Royce engines was that their superchargers had not one, as usual, but two successive compression stages, and even with intermediate cooling of the working mixture in a special radiator. Despite the complexity of such systems, their use turned out to be completely justified for high-altitude motors, since it significantly reduced the loss of power spent by the motor on pumping. This was a very important factor.
The original was the injection system of the DB-605 engines, driven through a turbo coupling, which, when automatic control smoothly adjusted the gear ratio from the engine to the supercharger impeller. Unlike the two-speed drive superchargers found on Soviet and British engines, the turbo coupling made it possible to reduce the drop in power that occurred between pumping speeds.
An important advantage of German engines (DB-605 and others) was the use of direct fuel injection into the cylinders. Compared to a conventional carburetor system, this increased reliability and efficiency power plant. Of the other engines, only the Soviet ASh-82FN, which was installed on the La-7, had a similar direct injection system.
A significant factor in increasing the flight performance of the Mustang and Spitfire was that their engines had relatively short-term operating modes. increased power. In combat, the pilots of these fighters could for some time use, in addition to the long-term, that is, nominal, either combat (5-15 minutes), or in emergency cases, emergency (1-5 minutes) modes. Combat, or, as it was also called, military mode, became the main mode for engine operation in air combat. The engines of Soviet fighters did not have high-power modes at altitude, which limited the possibility of further improving their flight characteristics.
Most versions of the Mustangs and Spitfires were designed for high combat altitudes, characteristic of aviation operations in the West. Therefore, their engines had sufficient altitude. German engine builders were forced to solve a complex technical problem. Given the relatively high design altitude of the engine required for air combat in the West, it was important to provide the necessary power at low and medium altitudes required for combat operations in the East. As is known, a simple increase in altitude usually leads to increasing power losses at low altitudes. Therefore, the designers showed a lot of ingenuity and used a number of extraordinary technical solutions. In terms of its height, the DB-605 motor occupied an intermediate position between English and Soviet engines. To increase power at altitudes below the design one, the injection of a water-alcohol mixture (MW-50 system) was used, which made it possible, despite the relatively low octane number of the fuel, to significantly increase the boost, and, consequently, the power without causing detonation. The result was a kind of maximum mode, which, like the emergency mode, could usually be used for up to three minutes.
At altitudes above the calculated one, the injection of nitrous oxide (GM-1 system) could be used, which, being a powerful oxidizer, seemed to compensate for the lack of oxygen in a rarefied atmosphere and made it possible to temporarily increase the altitude of the engine and bring its characteristics closer to those of Rolls engines. Royce. True, these systems increased the weight of the aircraft (by 60-120 kg) and significantly complicated the power plant and its operation. For these reasons, they were used separately and were not used on all Bf 109G and K.
A fighter's weaponry has a significant impact on its combat effectiveness. The aircraft in question differed greatly in the composition and arrangement of weapons. If the Soviet Yak-3 and La-7 and the German Bf 109G and K had a central location of weapons (cannons and machine guns in the forward part of the fuselage), then the Spitfires and Mustangs had them located in the wing outside the area swept by the propeller. In addition, the Mustang had only large-caliber machine gun armament, while other fighters also had cannons, and the La-7 and Bf 109K-4 had only cannon armament. In the Western Theater of Operations, the P-51D was intended primarily to combat enemy fighters. For this purpose, the power of his six machine guns turned out to be quite sufficient. Unlike the Mustang, the British Spitfires and the Soviet Yak-3 and La-7 fought against aircraft of any purpose, including bombers, which naturally required more powerful weapons.
Comparing the wing and central weapons installations, it is difficult to answer which of these schemes was the most effective. But still, Soviet front-line pilots and aviation specialists, like the German ones, preferred the central one, which ensured the greatest accuracy of fire. This arrangement turns out to be more advantageous when an enemy aircraft is attacked from extremely short distances. And this is exactly how Soviet and German pilots usually tried to act on the Eastern Front. In the West, air battles were fought mainly at high altitudes, where the maneuverability of fighters deteriorated significantly. Getting close to the enemy became much more difficult, and with bombers it was also very dangerous, since the fighter’s sluggish maneuver made it difficult to evade the fire of air gunners. For this reason, they opened fire from a long distance and the wing-mounted weapon, designed for a given range of destruction, turned out to be quite comparable to the central one. In addition, the rate of fire of weapons with a wing configuration was higher than that of weapons synchronized for firing through a propeller (cannons on the La-7, machine guns on the Yak-3 and Bf 109G), the weapons were close to the center of gravity and ammunition consumption had virtually no effect on its position. But one drawback was still organically inherent in the wing design - an increased moment of inertia relative to the longitudinal axis of the aircraft, which caused the fighter's roll response to the pilot's actions to deteriorate.
Among the many criteria that determined the combat effectiveness of an aircraft, the most important for a fighter was the combination of its flight data. Of course, they are important not on their own, but in combination with a number of other quantitative and qualitative indicators, such as stability, flight properties, ease of operation, visibility, etc. For some classes of aircraft, training, for example, these indicators are of paramount importance. But for the combat vehicles of the last war, the determining factors were precisely flight characteristics and weapons, which represent the main technical components of the combat effectiveness of fighters and bombers. Therefore, the designers sought first of all to achieve priority in flight data, or rather in those of them that played a primary role.
It is worth clarifying that the words “flight data” mean the whole complex the most important indicators, the main ones for fighters were maximum speed, rate of climb, range or time of sortie, maneuverability, ability to quickly gain speed, and sometimes service ceiling. Experience has shown that the technical perfection of fighter aircraft cannot be reduced to any one criterion, which would be expressed in a number, formula, or even an algorithm designed for implementation on a computer. The question of comparing fighters, as well as finding the optimal combination of basic flight characteristics, still remains one of the most difficult. How, for example, can you determine in advance what was more important - superiority in maneuverability and practical ceiling, or some advantage in maximum speed? As a rule, priority in one comes at the expense of the other. Where is the “golden mean” that gives the best fighting qualities? Obviously, much depends on the tactics and nature of the air war as a whole.
It is known that the maximum speed and rate of climb significantly depend on the operating mode of the engine. Long-term or nominal mode is one thing, and extreme afterburner is quite another. This is clearly seen from a comparison of the maximum speeds of the best fighters in the final period of the war. The presence of high-power modes significantly improves flight characteristics, but only for a short time, since otherwise the motor may be destroyed. For this reason, a very short-term emergency mode of operation of the engine, which provided the greatest power, was not considered at that time the main one for the operation of the power plant in air combat. It was intended for use only in the most emergency, deadly situations for the pilot. This position is well confirmed by an analysis of the flight data of one of the last German piston fighters - the Messerschmitt Bf 109K-4.
The main characteristics of the Bf 109K-4 are given in a fairly extensive report prepared at the end of 1944 for the German Chancellor. The report covered the state and prospects of German aircraft manufacturing and was prepared with the participation of the German aviation research center DVL and leading aviation companies such as Messerschmitt, Arado, Junkers. In this document, which has every reason to be considered quite serious, when analyzing the capabilities of the Bf 109K-4, all its data provided correspond only to the continuous operation mode of the power plant, and the characteristics at maximum power mode are not considered or even mentioned. And this is not surprising. Due to thermal overloads of the engine, the pilot of this fighter, when climbing at maximum take-off weight, could not use even the nominal mode for a long time and was forced to reduce speed and, accordingly, power within 5.2 minutes after take-off. When taking off with less weight the situation did not improve much. Therefore, it is simply not possible to talk about any real increase in the rate of climb due to the use of an emergency mode, including the injection of a water-alcohol mixture (MW-50 system).
The above graph of the vertical rate of climb (in fact, this is the rate of climb characteristic) clearly shows what kind of increase the use of maximum power could provide. However, such an increase is more of a formal nature, since it was impossible to climb in this mode. Only at certain moments of the flight could the pilot turn on the MW-50 system, i.e. extreme power boost, and even then when the cooling systems had the necessary reserves for heat removal. Thus, although the MW-50 boost system was useful, it was not vital for the Bf 109K-4 and therefore it was not installed on all fighters of this type. Meanwhile, the press publishes data on the Bf 109K-4, corresponding specifically to the emergency regime using the MW-50, which is completely uncharacteristic of this aircraft.
The above is well confirmed by combat practice at the final stage of the war. Thus, the Western press often talks about the superiority of Mustangs and Spitfires over German fighters in the Western theater of operations. On the Eastern Front, where air battles took place at low and medium altitudes, the Yak-3 and La-7 were beyond competition, which was repeatedly noted by pilots of the Soviet Air Force. And here is the opinion of the German combat pilot W. Wolfrum:
The best fighters I encountered in combat were the North American Mustang P-51 and the Russian Yak-9U. Both fighters had a clear performance advantage over the Me-109, regardless of modification, including the Me-109K-4
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