Bisnovat SK-2
1940
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Bisnovat SK-2

A direct result of high-speed wing research conducted at the TsAGI (Central Aerodynamics and Hydrodynamics Institute) by a team headed by Matus Bisnovat, the SK-2 single-seat fighter was evolved from the SK (skorostnoye krylo, or high-speed wing) aircraft tested during the winter of 1939-40. The SK was, effectively, the smallest possible airframe capable of accepting a 12-cylinder Vee-type engine, every effort being made to reduce drag (eg, a flush-fitting cockpit canopy which could be raised, together with the pilot's seat, for takeoff or landing). The SK-2, flown in October 1940, had a similar small-area wing and 1050hp Klimov M-105 12- cylinder liquid-cooled Vee-type engine, but an orthodox cockpit, conventional carburettor and oil cooler air intakes, revised vertical tail surfaces and an armament of one 7.62mm and two 12.7mm machine guns. The SK-2 was of all-metal construction with dural pressed sheet stressed wing skinning and a semi-monocoque fuselage. Flight test results were allegedly promising, but not sufficiently so to warrant displacing established fighter types in production.

W.Green, D.Swanborough "The Complete Book of Fighters", 2000

3-View 
Bisnovat SK-2A three-view drawing (1656 x 1088)


Specification 
 MODELSK-2
 CREW1
 ENGINE1 x 1050hp Ъышьют Ь-105
 WEIGHTS
    Take-off weight2300 kg5071 lb
    Empty weight1850 kg4079 lb
 DIMENSIONS
    Wingspan7.30 m24 ft 11 in
    Length8.28 m27 ft 2 in
    Height2.60 m9 ft 6 in
    Wing area9.57 m2103.01 sq ft
 PERFORMANCE
    Cruise speed530 km/h329 mph
    Ceiling10500 m34450 ft
    Range620 km385 miles
 ARMAMENT2 x 12.7mm

Comments
Barry, 04.04.2013

Bisnovat went on to become a prime designer of AAMs for the Soviet air forces.

sven, 13.03.2012

That wing looks like a stall spin killer. I'm wondering if it was just a bit too small. Induced drag on short wings can be a problem, hence performance no better many conventional span aircraft of its era.

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