Yakolev Ya-7 / AIR-7
A two seat low-wing monoplane built for record speed. Both cockpits were covered by a long and low transparent canopy. Engine covered by Townsend ring. The aircraft had mixed construction: steel tubes and fabric for fuselage, mostly wood and fabric in thin (8%) wing, duralumin and fabric for ailerons and tail surfaces. Fixed landing gear was enclosed into 'pants' fairings. Construction started in April 1932.
The aircraft was ready at the end of Summer 1932 and on November 19 325km/h was demonstrated, and in Spring 1933 - 332km/h. Flights continued until 1934, when an aileron broke off in flight due to flutter (then almost unknown and not understood). Test-pilot Yu.I.Piontkovskij managed to land on unprepared terrain.
Since AIR-7 fulfilled its goal (to demonstrate high speed), it was not restored.
Engine: 1 x M-22, 355kW
Max take-off weight: 1400 kg / 3086 lb
Empty weight: 900 kg / 1984 lb
Wingspan: 11.0 m / 36 ft 1 in
Length: 7.8 m / 26 ft 7 in
Wing area: 19.4 sq.m / 208.82 sq ft
Max. speed: 325 km/h / 202 mph
Range: 1300 km / 808 miles
Yakolev Ya-7 (AIR-7)