heyjoe said:And those old gyro stabilised sights would tumble under too many Gs and typically used a dail setting for wingspan of expected target to allow solve the range component via stadimetric ranging. Agreed the challenge is getting the lead right and that is a function of range, deflection and G. It's interesting, but not surprising that a lot of top scoring aces in WW II were really good hunters or brought up with a varmit shooting rifle so they instinctively understood the deflection problem. David McCampbell was the leading Navy ace in WWII and he was an Alabama boy brought up around firearms. He downed nine aircraft in a single mission, which a testimony to his superb shooting eye and efficient shooting technique (most other pilots would have run out of ammo after a few victories): http://www.acepilots.com/usn_mccampbell.html
I've read McCampbell's engagement policy to his squadron, as I'm sure many of you have, and if I remember correctly he heavily stresses aggressive tactics. I guess it makes the shooting that much easier if the enemy is filling up your windscreen.
Didn't one of the german ace of aces (galland?) say seomthing to the effect that most of his kills didn't even know he was there?