The creation of ANT-13 is unusual for the AN Tupolev design bureau. After the cessation of work on the ANT-12 (ANT-12 is a fighter, the development task was handed over to NN Polikarpov , the result of the I-5 fighter) engineer V.M.Rodionov proposed, on the basis of the postponed project, to build a fighter as a public initiative, i.e. after hours. In those years, such ideas found universal support. That is why the car had another name in the design bureau - “Public plane”. A.N.Tupolev entrusted P.O. Sukhoi with instructions on the creation of the fighter.
In the second half of the 1920s, the terms "jockey" and "interceptor" related to fighter aircraft appeared in the world aviation dictionary. The primary task of the “jockeys” was to protect the rear communications and work in the air defense system. The fighters, which had a good rate of climb and maneuverability, were to intercept heavy enemy aircraft that had broken through to the rear. High flight characteristics were supposed to help the “jockeys” pilots quickly launch an attack and successfully leave the return fire.
In December 1929, the UVVS issued technical requirements for the ANT-13 (I-8) aircraft. For successful actions to protect communications, the fighter had to have a maximum speed of 310 km / h at an altitude of 5 kilometers, a practical ceiling of 8500 meters, and a climb time of 5 kilometers to 6-7 minutes.
Various materials were used in the design of the aircraft: the wings with a metal frame and linen covering, the flanks of the side members were made of stainless steel, the fuselage was constructed of chrome-molybdenum pipes, and the plumage was made of aluminum mail. Engineers chose the Curtiss Conqueror with a power of 600 hp.
The construction of the ANT-13 was completed in November 1930, and on December 12, test pilot MM Gromov made the first flight on a fighter, rising to a height of 5 kilometers in 10.32 minutes. Poor rate of climb made the designers look for solutions to the problem. The modernization plan included the installation of a stabilizer control circuit and an increase in the oil radiator. Additionally, it was planned to use the engine with ethylene glycol cooling, replace the wing profile, change the compensating return of the horizontal tail, install the cock on the screw and the closed fairings on the flashlight and chassis.
Finishing ANT-13 continued until April 1932. The aircraft was not transferred to the state tests due to inconsistencies with the specified flight characteristics. The main factor that determined the fate of this not-so-ordinary aircraft was the decision not to purchase the Conquor motor, and there was no alternative replacement. The option of installing a high-altitude engine fighter with powerful superchargers was considered, but the matter did not come to the realization of the project.
|Wing area, m2||20.00|
|empty plane||960 -|
|Engine type||1 x PD Curtiss V-1570 "Conqueror"|
|-power, hp||1 x 600|
|Maximum speed, km / h|
|at a height||310th|
|at ground level||303|
|Cruising speed, km / h||287|
|Practical range, km||440|
|Max. rate of climb, m / min||833|
|Practical ceiling, m||8500|
|Armament||2 x 7.62-mm machine gun PV-1 .|
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