ANT-5 (I-4) fighter
In the mid-20s, there was a need to create a new fighter for the Soviet Air Force, which would not be inferior to its Western counterparts. All Soviet fighters of the late 1920s were the first in something. I-4 was the first domestic all-metal fighter. In the second half of the 1920s, the fighter aviation of the Red Army air force was still largely dependent on the supply of aircraft from abroad. The Dutch Fokkers and the English Martinsides were a significant part of its fleet. To replace them, the leadership of the Air Force ordered the design boards of the country to design a range of fighters of various types. In the fall of 1925, the task for an all-metal fighter with an air-cooled engine first appeared. This task was subsequently corrected several times and was finally approved by the STC of the UHVS only on July 7, 1927, when the plane was almost ready.
The design team of A.N. Tupolev was entrusted with this task, which consisted in designing an all-metal single-seater fighter with an air-cooled engine. In February 1926, TsAGI began work on creating a prototype fighter, called the ANT-5 (I-4). The design of the chassis and the fuselage involved a team of A. I. Putilova, N. I. Petrov, N. S. Nekrasov, V. M. Petlyakov I. I. Pogossky and E. I. Pogossky. P.O. Sukhoi was entrusted with the project of the motor-mounts, he also headed a group of engineers at the serial plant, becoming the leading engineer on the ANT-5.
For the new fighter, they chose the one-and-a-half scheme that was widespread at the time. The whole structure was sheathed with thin corrugated kolchugaluminiumievym sheets. The aircraft was equipped with a 420 hp Gnome-Ron engine. Armament consisted of two synchronized machine guns "Vickers" caliber 7.62 mm.
In August 1927, factory tests of the ANT-5 began, after which the aircraft was transferred for research to the Air Force Scientific Research Institute. The aircraft commission was recommended for adoption by the aircraft with some changes. It was noted that ANT-5 is not inferior in its characteristics to the best Western cars of the same class.
ANT-5 was built at plant number 22 in Moscow. The first production car was released on October 15, 1929, which soon received a positive assessment on tests at the Air Force Institute. A total of 369 cars were built. The designers carried out experimental work on equipping the ANT-5 with various weapons: 65 and 76 mm caliber guns, RS-82 rocket projectiles and powder rockets.
During serial production, the aircraft was repeatedly improved: instead of the British Vickers machine guns, domestic PV-1s were installed, the Gnome-Ron 9Ad engines were replaced with the Gnome-Ron 9 Aq of higher power, the propeller was strengthened and the wheel disc fairings were installed . The ANT-5 of the last modification had a maximum ground speed of 231 km / h, a practical ceiling of 7,200 meters and a range of 840 kilometers. The height of 5000 meters the aircraft gained in 14.3 minutes.
From 1930, ANT-5 began to enter the Air Force. The first to receive them were units deployed in the Caucasus, as well as aviation of the Baltic and Black Sea fleets. The episodic use of ANT-5 in engagements with bandits ["basmachs"] has been documented. The aircraft were decommissioned in early 1934, but were operated in separate subdivisions until 1936. The experience gained in the design and creation of the ANT-5 (I-4) was fully used in the work on the following, more advanced, models of Soviet fighter aircraft.
|Maximum speed||231 km / h|
|Flight range||840 km|
|Practical ceiling||7,200 m|
|Wing Span||11.42 m|
|Weight empty||978 kg|
|Maximum takeoff weight||1,430 kg|
|Engines||1 x 480 hp|
|Machine gun armament||2 x 7.62-mm machine gun PV-1|
|Internal bomb load||bombs weighing up to 50 kg|
|Join the GlobalSecurity.org mailing list|