Question on game physics: BULLET SPEED ( simulator )

[winny]

Originally Posted by McQ59

Good question vdomini... I think it must be a question about output speed. The moment the projectile has left the barrel, it is 'out there on it's own' dealing with gravity and friction - and the plane, if fast enough, is capable of catching up with it's own projectile. The analogi is ex. firing from a car or a train. The projectile does not carry with it the speed of the vehicle. I think... But to be honest, it's a while ago since I f*#d up my exams in physics...
Do anyone know what the output speed was for ex. a 20 mm?

Muzzle Velocity for a 20mm is between 500 and 800 m/sec for guns of that era. Hispano is about 750 m/sec. 400mph is 179 m/sec.