Originally posted by Ack-Ack
Fly a P-38, no need to worry about convergence.
ack-ack
Kinda true.
Convergence in AH has TWO components, horizontal and vertical. Planes with tightly grouped guns, like the 38 and Mossy, dont have much to fear from lateral dispersion....since the guns start out close together and wont spread much beyond that inside guns range.
But, they DO have to worry about the vertical component to some degree. When shooting at the same target...say a bullseye at 400 meters...the tight grouping of hits will be visbly higher if you set convergence at 600 iinstead of 300. you can adjust to wherever the grouping will be, but it WILL be different depending on your setting.
ANother component of the convergence question is the
convergence in TIME as opposed to space. The distance setting controls where the bullets hit in SPACE, but slower projectiles will get to the right spot LATER than the faster ones -- so one group or the other will miss.
I'm thinking thats why the higher setting for the Zero's slower rounds helps with hits -- it raises the impact point, so when the target MOVES PAST the bullet impact point on a snapshot the cannons' slower rounds arrive a llittle above that spot and hit the target farther along tis path.