Technical data
Type Ya-21/UT-21
Function trainer/sport
Year 1938
Crew 1
Engines 1*220hp Renault "Bengali"-6 (MV-6)
Length 6.4m
Wingspan 7.3m
Wing area 9.58m2
Empty weight 611kg
Loaded weight 831kg
Wing Load (kg/m2) 86,7kg
Power load (kg/hp) 3.8
Maximum Speed 322km
Range 715km
1000m 2.7min
3000m 7.5min
Ceiling 9100m

Ya-21/UT-21, A.S.Yakovlev

From 'Notes of an aircraft designer' by A.S.Yakovlev

Modified AIR-18 with more powerful engine. Was very (for A.S.Yakovlev's aircraft it means extremely) hard to fly. Was under modification in 1939 (as Type 25), not finished because design bureau switched to military aircraft.

Modified March 31, 1996 Back to
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