Alekseyev I-211
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The Alekseyev I-211 was a single-seat jet fighter first flown on October 13, 1947, and the first fighter aircraft to be produced by the Semyon Alexeyev OKB-21 established in September 1946.
The plane configuration was similar to Gloster Meteor, with twin engines in wing nacelles. It was supposed to be an interceptor fighter, with heavy armament and a place for a future radar. The I-211 was intended to have been powered by two 3,010 lbf static (13.39 kN) Lyulka TR-1 axial-flow turbojets, but following trial flights it was discovered that the aircraft was severely underpowered, with the engines only producing 70% of their rated thrust. Engines were also troublesome. It was proposed that the second prototype be fitted with revised 3,318 lbf st (14.76 kN) TR-1A engines, but before these were cleared for flight testing Alekseyev was allocated two UK-export Rolls-Royce Derwent centrifugal-flow turbojets, so the aircraft was modified to take these instead and redesignated I-215. The I-211 was abandoned in favour of the I-215 when the TR-1A was discontinued.
General characteristics
- Crew: 1
- Length: 11.54 m ()
- Wingspan: 12.25 m ()
- Height: 3.68 m ()
- Wing area: 25 m² ()
- Empty weight: 4360 kg ()
- Loaded weight: 7460 kg ()
- Powerplant: 2× Lyulka TR-1 , 13.39 kN (1350 kg) () each
Performance
- Maximum speed: 910 km/h
- Cruise speed: 760 km/h
- Range: 2000 km ()
- Service ceiling: 13,600 m ()
- Rate of climb: 1667 m/min ()
Armament
[edit] References
- Green, W.; Swanborough, G. (1994). The Complete Book of Fighters. London: Salamander Books. ISBN 1-85833-777-1.
- I-215 at Ugolok Neba site (in Russian)
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