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Kuibychev Aviation Institute Strekoza

The Strekoza (Three-axis) was a single-seat single-engined high-wing mono-plane with three-axis control circa 1983. Constant chord wing; conventional tail. Pitch control by elevator on tail; yaw control by fin-mounted rudder; roll control by full-span ailerons. Engine mounted at wing height driving tractor propeller.


The Strekoza is a com-pletely original design from the students at the polytechnic of Kuibychev and in concept of a mini-aeroplane. Using a conventional tail supported by a metal framework, the Strekoza carries slotted ailerons along the entire trailing edge of its constant-chord high wing. The engine, an air-cooled Wichr-25 developing 25 hp, is placed in a nacelle on the leading edge of the wing, connected to a two-blade 43 inch (1.10 m) propeller.

Length overall 19.9 ft, 6.07 m.
Wing span 23.6 ft, 7.20 m.
Constant chord 3.6 ft, 1.10 m.
Total wing area 105 sq.ft, 9.80 sq.m.
Engine: Wichr-25, 25 hp.
Propeller diameter: 43 in, 1.10m.
Power per unit area 0.24hp/ sq.ft, 2.6hp/sq.m
Empty weight 331 lb, 150 kg.
Max take-off weight 507 lb, 230kg.
Payload 176 lb, 804.
Max wing loading 4.831b/sq.ft, 23.5kg/sq.m
Max power loading: 20.31b/hp, 9.2kg/hp.
Max level speed: 62mph, 100kph.
Landing speed 28mph, 45 kph.
Stalling speed 31 mph, 50 kph.
Take-off distance 660 ft, 200 m.
Landing distance 590 ft, 180 m.

 


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