|Type||UT-2, Ya-2, '20'|
|Function||Primary Trainer Prototypes|
|Wing area (m2)||17.2|
|Empty weight (kg)||574||574||569|
|Loaded weight (kg)||804||900||888|
|Roll (m [sec])|
Two-seat monoplane trainer, developed from AIR-10. Unlike the predecessor, UT-2 was all-wooden plane, with Ak g-limit 10. Two prototypes were built, one with 150hp M-11E engine, another - 140hp Renault "Bengali" 4. Both had fuel for 2 hours of flight, what was criticized during State Acceptance Trials. Moreover, aircraft seats did not allow to use parachutes. After the seat modifications and increasing of fuel tank capacity Ya-20 could stay airborne for 7 hours, but it gained 112kg of flight weight and performance was slightly degraded.
Many sources include Ya-20 into the AIR line as AIR-20. But this is a mistake, because no one in its mind could keep naming his product in honor of politician purged by Stalin.
UT-2 with M-11E was rated as 'very good' and recomended for mass production as a primary trainer. Variant with 'Renault' participated in 1937 competitions and took the 1st place, but turned to be a 'dead end' because the engine was not accepted for series production.
|Drawing by Igor Soultanov, used as a background for this page; ("History of aircraft construction in the USSR")|
VT-2 - floatplane version
'20' Ya-20 UT-2
|Created January 25, 1996
Modified January 4, 2002
with help of Stanislav Cerny