http://www.aeronautics.ru/archive/wwii/photos/gallery_006/Lancaster%20explodes%20after%20a%20flak%20hit%20in%20the%20bomb%20bay.jpgCaption says "Lancaster explodes after a flak hit in the bomb bay"
As-is, planes are nearly invulnerable from below. No damage is done whatsoever. you can put 120 20mm directly into the belly of a lancaster and NOTHING will happen -- you can't kill the pilot from below so the damage model does nothing.
In fact, the belly was one of the most vulnerable areas, due to bombs, gas, hydraulics, etc..., all being located in the backbone of the ship, and rounds penetrating the belly would do damage to them.
Make a NEW damage item, only it won't show up on the CTRL D screen. Make it the BOMBS. If they get hit BOOM. Make the same also happen for jabo. In a p51D? Take a hit in the bomb (probability would be low, I know, but it would still be possible)? Blow your wing tip off!! For larger bombs just blow the entire plane up! Might make people take 250lb and 500lb if they could survive with just a wingtip lost instead of the whole plane gone.
Like I said one of the best ways to attack bombers is from below. They were historically vulnerable (all of them) from below... and yet in AH it's been overlooked for a long time. There USED to be a bomb load that, when hit, would instantly kill your lancaster. No more. I want to see this idea put into play for TOD, because the LW intercepters are going to NEED a realistic bomber damage model.