Turn Down Head Shake

[Danelov]

20mm I dont know, but the axe mounted 37mm in the Yak-9T, or the 45mm at the Yak-9K, yes. The IL-2 reproduced very well the effect and in the real planes was really so, that is well documented .The advise was to fire only very short bursts of 2, 3, 4 shells and this machines were in general assigned to crack aiming skilled pilots. Aircobras had also the same effect, with the 37mm but a little less.Of course, that´s very heavy stuff compared to the 20mm.