testbed with 57-mm cannon
Model by Bert Andermann
|The Yak-9 UT was a derivative of the VK-107 engined Yak-9U, obtained
by replacing the engine-mounted ShVAK 20 mm gun with more powerful weapons:
NS-23, N-37, N-45 and even 57 mm guns, and replacing the syncronized weapons
with new B-20 guns; for 45 mm and 57 mm armed planes, one of these syncronised
guns was deleted to lighten the plane.
The T letter in the name of the plane was for Tahnkovyy (tank-busting), but this armament was also intended to kill enemy planes.
In early 1945, Plant n.166 delivered 282 machines armed with one NS-23 and two syncronised B-20S guns.
Yak-9UT conserved the horizontal speed of Yak-9 U and its good handling, except for the control stick force from the elevator, that proved to be too high and was the main shortcoming of this plane.
Yak-9 UT c/n 40166074 was experimented with a 57 mm gun, whose
barrel didn't protrude from the spinner, and this is the subject of this
The conversion of the Amodel kit of Yak-9U was easy:
I added some details in the cockpit and made a new vacuformed canopy.
Besides, I opened all air inlets (wingroot and engine) - a simple measure
to improve the model. Furthermore I lengthened the legs of the undercarriage
- they are a little bit too short, in my opinion.