Originally posted by Gianlupo
Schatzi, your gunnery really sucks! 
Any hint about vertical convergence? I mean, when you have a mix of mg and cannons, how do you have to set convergence in order to make sure that bullets and shells hit in the same spot? Cannons convergence has to be set longer than mg?
Thanks, i KNOW my gunnery sucks. FYI, i didnt AIM at the bullseye center!!! all shots were fired when in autopilot level or autoangle, to avoid dispersion due to "maneuvering".
"Vertical" convergence is made up for in AH. If you fire at a steady (relative to your gun!) target, when the target is in convergence, the center of your pipper is where ALL - no matter which gun type - bullets hit (see article at NetAces).
The problem with cannon and MG is twofold:
- muzzle speed
- target is moving
You pull lead because of two reasons: your bullets drop with gravity and your target MOVES at a certain speed.
Imagine youre shooting with MG - bullets take 2 sec to travel to target (these numbers are
entirely sprung from my warped phantasies and probably dont reflect reality). In those 2 secs, your target doing 200 mph moves roughly 200 yds in that time.
Now imagine your cannon rounds taking 3 secs to get to target.... this gives your same target time to move 300 yds in that time. You need to pull 100 yds more lead to make up for that.
Taking not only your targets movement and speed into account, but also your OWN (which might not be headed the same vector, thus increasing the
relative speed between you and target even more) make things even more complicated.
Now, the further away the target is and the higher the speeds involved, the more different the amount of lead gets. Convergence cant make up for the time needed to travel to target - especially not since relative position/speed changes with every gun solution.