Aviation of Word War II

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Su-3, product 360

High Altitude Fighter-Interceptor

Sukhoi

Су-3

Su-3 "product 360" is a single-seat fighter with an M-105P engine at 1100hp. and two turbochargers TK-2 - a backup for the Su-1 aircraft, had a slightly smaller wing (17 sq m instead of 19 sq m). Otherwise, the design of the aircraft and the engine completely repeated the previous model.

In the fall of 1941, the design bureau was evacuated to the east. During the evacuation, work on the still unfinished Su-3 was continued. With a slightly lower empty weight - 2480 kg - the Su-3 also showed good results during tests; when the vehicle was operating, the speed at an altitude of 10,000 m reached 638 km/h. The lack of knowledge of the turbocharger did not allow the aircraft to be put into production.

In 1942, the aircraft was tested at the Flight Research Institute, which were not fully completed, and the aircraft was transferred to the Air Force Research Institute.

For comparison, the table shows data for aircraft of the beginning of the Second World War with the M-105P engine.


                                                                                                                                                                                                              
Fighters of the beginning of WW II
Yak-1 Su-1 Su-3 LaGG-3
Year of issue 1941 1940 1941 1941
Dimensions
Lenght, m 8.48 8.42 8.42 8.81
Wing span, m 10.0 11.5 10.1 9.81
Wing area, m² 17.15 19.0 17.0 17.62
Weight, kg
Takeoff 2,858 2,875 2,992 3,280
Powerplanr
Engine M-105P M-105P M-105P M-105P
Power, hp 1100 1100 1100 1100
Performance
Max speed, km/h at sea level 480 500 500 474
at altitude 577 641 638 549
m 4950 10000 10000 5000
Time to climb 5 km, min 9.2 4.9 5.5 7.4
Turn time, sec 5.7     8.5
Service ceiling, m 10,000 12,500 11,900 93,00
Service range*, km 700 720 700 700
Armament
number cannons 1 1 1 1
Machine guns 2 2 2 3

* At a speed of 90% of maximum.

Drawing Su-3

Bibliography

  • The history of aircraft designs in the USSR, 1938-1950. / V.B. Shavrov /
  • Model constructor, №8-1988 / N. Gordyukov /