You can change between imperial and metric in the options. Anyways! Still hooked on the game, now level 8 with die Luftwaffe! Me410 has tremendous firepower, but is slow and the turning capabilities of a HE 111. When you get 6 kg's of 1 second burst mass, then you have to trade something away, I guess...
The StuKa's are alright. The D-5 version is quite good. But it's still way too slow. Everything would be on your tail when you are finished with your dive and you tries to get away.
I got the tier six S.79 italian medium bomber too. It's fast climbs to 5000 meters in no time, and has an okey load of 5 x 250 kg bombs. the problem: it don't hit SHIT. I don't know if something's wrong with the plane or it's because I'm too high, but I always seem to miss my targets. So I must say I like the HE111 abit better, since I actually hit what I aim for.
The Messerschitts... Not much to say. Wonderful machines, but I feel they are a tad too frail. But what are their main strength? Does it outturn or get outturned? Should I speed straight forward if I get someone on my tail?