| 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 |
| Climb |
| 1000m |
2.7min |
| 3000m |
7.5min |
| Ceiling |
9100m |
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.
