Standard Yak-9U armament was 1 Hub (engine) mounted ShVak 20mm Cannnon (same as La5) along with x2 12.7mm USB MG's also nose mounted.
There was a sub-variant of the -9U, called the -9UT ( U = Uluchshenny-"improved", T= Tyazhelowooruzhenny = "heavily armed"). Of the 3,921 Yak-9U's built 282 where UT's, so we may or maynot get the T armament options.
But if so, the Yak-9UT had several armament options. The x2 12.7mm MG's were replaced x2 B-20 20mm cannons, and the hub mounted cannon was replaced with a single B-20 20mm, or a single N-23 23mm, or a single N-37 37mm, or a single N-45 45mm cannon.
The Yak-9U should have strengths and weakness somewhat similar to the Bf109G10, with good climb and acceleration, slightly better turning ability than the G10, and a top speed of 434mph at 18,500 ft.
To my knowledge it did not carry drop tanks, or bombs. It may have had a field modification to carry rockets though (not sure).
Range was about 550 miles (approximately half that of P-51 or N1K2).
Basically its a very capable air superiority E fighter, be very good in the vertical, but without any air to ground capability, realitvely short legs, and its performance will drop off rapidly over 20k-25k.
Did I miss anything?
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Vermillion
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