Tupolev I-12
| Tupolev I-12 (ANT-23) | |
|---|---|
| Type: | Fighter plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
Winter 1931 |
| Number of pieces: |
1 prototype |
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The Tupolev I-12 ( Russian Туполев И-12 ), factory designation ANT-23 (АНТ-23), is a Soviet experimental fighter aircraft from the first half of the 1930s. The abbreviation "I" stands for Istrebitel (Истребитель), fighter plane. The factory name consists of the initials of the designer Andrei Nikolajewitsch Tupolew .
development
The I-12 was created in 1931 as a parallel design to the Grigorowitsch IZ as a test platform for the large-caliber, recoil-free APK-100 cannon (Aviazionnaja Puschka, aircraft cannon) by Leonid Wassiljewitsch Kurtschewski . Designer W. N. Tschernyschow, head of a brigade of the AGOS , which in turn was subordinate to A. N. Tupolev, chose a rather unconventional construction for the type. The fuselage consisted practically only of the pilot's cabin and the engines in front of and behind in pull / push configuration. Two thin tail girders, consisting of water pipes screwed in three packs, connected the wing to the tail unit and simultaneously served to accommodate the two APK cannons. The landing gear was rigid, and there were two grinding spurs at the stern . The whole construction was made of metal.
The prototype Baumanski Komsomolets (Бауманский комсомолец) completed its first flight at the end of 1931 with pilot Kozlov. The test revealed insufficient flight stability of the machine, and the aircraft was almost lost when one of the APK cannons exploded during a test flight and damaged the tail unit. A few more flights were made, but after it was decided not to mass-produce the APK, the tests were discontinued. The revised and slightly smaller ANT-23bis was no longer completed.
Technical specifications
| Parameter | Data |
|---|---|
| Conception | twin-engine fighter plane |
| constructor | VN Chernyshev |
| Manufacturer | AGOS (subdivision of ZAGI ) |
| Year of construction (s) | 1931 |
| crew | 1 |
| length | 9.50 m |
| span | 15.80 m |
| Wing area | 30.0 m² |
| Wing extension | 8.3 |
| Takeoff mass | 2400 kg |
| Engines | two air-cooled 9-cylinder radial engines Bristol Jupiter VI |
| Starting power | 420 kW (525 PS) each |
| Top speed | 300 km / h near the ground |
| Armament | two 10.2 cm rigid APK-100 cannons in the tail boom roots (other source: two 7.6 cm APK-4 cannons) |
See also
Other types of aircraft with tension / compressed air screw
literature
- Peter Stache: Fighter planes by A. N. Tupolew . In: Fliegerrevue . No. 2 , 1970.