I really dont know how to approach this now. If I say its roadkill and not realistic, one of our wonderful self-proclaimed engineer scientist experts will say something like this.
The Hispano Mk2 firing APCDQW... shell could penetrate 20.14386578mm at 311.2yards, at a relative humidty of 10%, and 76.4 farenheit.
(gee arent I clever theyll say when they type the message)
So therefore he'll proudly proclaim spitfire Mk.Il2s are accurarate in AH. And all his buddies will also post and pat him on the back, prooving just how cool theyall are to uphold the honor of the gracious maid AH.
Well kiddos thats all crap, most if not all armor penetration tests are done with the gun fixed, firing at a non moving steel plate, with the plate facing 90degrees, thus providing the optimum firing position to the gun and giving it optimum performonace.
If the plate or gun are angled you will see that penetration is reduced substantialy due to the rounds deflecting and the relatively greater thickness of armour now that its angled.
So you come in in a fighter fire ur guns and hit it 90degress all the time? Yea right.
Guys its just wrong theres no way to reason around it, in RL armies developed 37mm and 40mm anti-tank guns for use in planes, the 20mm didnt work.
Even against PzII and PzIII and those horrible little Italian M13/40s the British mostly faced in Africa. There were 4 hispano hurricanes there the whole time doin groud attack and the british still had to develop a 40mm AT variant. Im sorry but its just not right how it is in AH, I understand some of u guys love AH so much and hate to see it challenged- but this is simply wrong.
I dont know whate else I can say guys, I honestly and genuinely belive from the historic record that this is incorrect ability for hispano cannons.