Alekseev I-215
1948
Back to the Virtual Aircraft Museum
  FIGHTERVirtual Aircraft Museum / USSR / Russia / Alekseev  

Alekseev I-215

Semyon Alekseev's OKB encountered little difficulty in adapting the basic I-211 to take a Rolls-Royce Derwent centrifugal-flow engine in place of the axial-flow Lyulka TR-1. Owing to the centrally-mounted wing nacelles of the fighter, it proved possible to mount the larger diameter compressor of the British engine forward of the wing leading edge. Thus, apart from some structural redesign associated with and adjacent to the wing nacelles, the I-215, as the Derwent-engined aircraft was designated, was virtually identical with the I-211, and the first flight took place on 31 December 1947. The Derwent turbojets were rated at 1590kg each, rectifying the power inadequacy of the earlier fighter, but the wing centre section structure began to display fatigue cracking early in the test programme. Strengthening of the centre section dictated transfer of the twin-wheel main undercarriage units from wing wells to the fuselage, a second prototype, the I-215D (the suffix indicating dubler), being completed with a bicycle arrangement of larger-diameter paired wheels retracting into the fuselage fore and aft of the main fuel tanks, with small outriggers retracting into fairings beneath the engine nacelles. The I-215D was flown in the spring of 1948. Tests resulted in a recommendation by the Ministry of the Aviation Industry that series production be undertaken. A tandem two-seat night fighter version of the same basic design, the I-212 powered by two 2270kg Rolls- Royce Nene turbojets and having a larger wing, was being readied for flight testing at this time. However, Aleksandr Yakovlev's comment during a Kremlin meeting to the effect that the I-212 was "another copy of the Me 262" may be presumed to have influenced Yosif Stalin in his decision to disband the Alekseev OKB without flight testing the I-212, and, as a consequence, terminating the I-215.

Alekseev I-215


Specification 
 MODELI-215 (first prototype)
 WEIGHTS
    Take-off weight6890 kg15190 lb
    Empty weight4010 kg8841 lb
 DIMENSIONS
    Wingspan12.25 m40 ft 2 in
    Length11.54 m38 ft 10 in
    Height3.68 m12 ft 1 in
    Wing area25 m2269.10 sq ft
 PERFORMANCE
    Max. speed970 km/h603 mph
    Range1700 km1056 miles

Do you have any comments about this aircraft ?

Name    E-mail


All the World's Rotorcraft


Virtual Aircraft Museum


All rhe World's Rotorcraft AVIATION TOP 100 - www.avitop.com Avitop.com