Aviation of World War II
On August 25, 1941, six months before the first flights of La-5, M.I. Gudkov reported to A.I. Shakhurin about the readiness for testing the first flight prototype of the LaGG-3 converted by him with the M-82. Armament consisted of two synchronous BS machine guns and two synchronous ShKAS. On the second copy, it was planned to install ShVAK guns instead of BS, and BS instead of ShKAS machine guns. The aircraft received the name Gu-82 and made its first flight at LII on September 11, 1941.
The first Gu-82 in flight tests showed a speed of 573 km / h, which was slightly more than that of LaGG, but the flight range turned out to be much higher. Until September 24, test pilot A.I. Nikashin made 12 flights on it. However, the air-cooled fighter jet so needed by the military will never appear in mass production.
Six months later, Lavochkin's fighter will appear with the same engine, which had a slightly higher top speed, mainly due to better engine nosing ... The first La-5, like the LaGG-3, did not have slats and had a tendency to stall onto the wing. By August 1942, all La-5 aircraft were produced with slats.
In the photo above is the Gu-82 before rework.
On October 11, 1941, Mikhail Ivanovich Gudkov reported to Stalin: "... According to preliminary data, the Gu-82 has a maximum speed of 580 km / h at an altitude of 6400 m and rises to an altitude of 5000 m in 7-7, 5 minutes Thus, the serial machine I took from the factory number 21 after the installation of the M-82 engine has an advantage in speed by 25 km / h and in the time to climb 5000 m - 1-1.5 minutes.
Moreover, the machine has gross errors and defects in serial production of the Gorky plant, due to which the serial LaGG lost 45-55 km / h against the prototype. Therefore, if we correct and eliminate the defects of the production car, then we will have a maximum speed with the M-82 engine 615-620 km / h.
Currently, I am carrying out a whole range of developments, which give reason to believe that I will be able to increase the speed of my car from M-82 to 600 km / h, without taking into account the elimination of batch production defects ... front, I quite clearly imagine that we need to be armed with an airplane with an air-cooled engine, since the use of fighters with a liquid-cooled engine both in air battles and especially when attacking enemy ground units brings a large percentage of losses in flight personnel and materiel, because of the great vulnerability of the water system of the motor ... Having a fighter with an air-cooled motor, we will not have such losses, since the survivability of an air-cooled motor is 9 times greater.
Based on these considerations, I ask you, in order to gain time, without waiting for the end of the test of the machine, to allow me to introduce my aircraft from the M-82 at one of the serial plants producing LaGG aircraft ...
Today, it remains only to regret not introducing into serial production the fighter so needed by the Soviet Air Force back in 1941. Probably for the same reasons, Polikarpov, who had much more authority, was also unable to organize the production of his much better I-185 fighter.
Pay attention to the shape of the cockpit canopy and antenna after the rework of the Gu-82. It is this design that these elements will have on the next modifications of Lavochkin's aircraft.
May 11, 2019.
May 12, 2019.
May 14, 2019.
May 15, 2019.