IRL, the (Packard-Merlin engine, not the first ones with Allison) shone only above 6000 - 6500 m but not because it was made to fly there, but simply because that was the altitude of highest top level speed for Luftwaffe fighters, excluding Ta 152 and the jets.
Any tips on killing the T-34s with lower Br tanks frontally in RB? HEAT rounds on short 75mm seem too finicky to pen even with slight elevation, APCR on short 50mm (that can pen KV-1 front weakspots) bounces with slightest angling? Turret front's not vulnerable except for mod 40. Even the hull mg seems to benefit from 60 deg, or have I gotten it wrong- I remember hearing it'd be THE weakspot of T-34. Getting tired facing fleets of T-34s with only slightly less annoying T-50s scurrying around allday erryday when taking the panzers for outing. Flanking them isn't always the option, that'd require teamwork
I dont think there are any good tricks, the T-34s and first Shermans just are a bit under-BVd and face tanks that dont stand a chance against them.
For the T-34 when using short or long 5 cm: get close, use APCR, go for the hull if its unangled or you have its side and the turret ring if it isnt. Actually even if you have ones side, shoot the turret at least once to attempt to stop it from firing back. Short 75 mm? Almost hopeless. In WT, the T-34's driver hatch and MG port actually are not weakspots. Don't shoot them.
Against the Sherman M4A1, get close and use APCR again(unless you have clear shot at its side) and shoot first the turret right of the gun(left side of frontal silhouette) as that will take out the gunner. The next Sherman, M4, has a thick extra armor plate protecting the gunner so you pretty much have to shoot the other side of the turret and then move to shoot the hull and pray for an ammo rack hit. Killing one may need over a dozen penetrations...