Originally Posted by l3lo0d_l3ath
Ah, many thanks; So delay-classing my elite reloads it still the best approach :) ..was worried for a moment there. The difference in downing low-flying planes might simply have been that other, earlier ships had better ship-based AAW (especially, perhaps, versus lower-level/blitz-flying aircraft) ?
A number of things affect AAW immunity. In fact, AAW fire is actually the same kind of fire as you get from fighters.
You have a number of main items; Attack (which is either the ship based AAW stat, or the plane attack stat), or you have defense (which is the plane's AP defense stat).
Also, for planes, the ability of its relevant stat (fighter for fighters, air for scouts and bomber for bomber) works in tandem with the plane stat to improve the defense/offense of the planes.
Also, displayed ability is multiplied in a formula with the crew details to produce true ability, which is what it is all about. There are a bunch of guides in the Tips and Tactics forum, on www.nf-guides.com and on www.opennavyfield.com which are some good reading if you are serious on getting the best crew.