When you fire a flying aircraft, the crashed model is absurd. The ugliest is the A-10 keeping its wings while bumping. I suggest every aircraft shot while flying, disintegrate when reaching the ground. Just a crater hole, or better, wrecked sparse parts. Helicopters are no so sensible due to their slower cinematic and wreck models.
But it could be fine to have a simple burned model (aircraft hit on ground without explosion) and an exploded one (into parts and/or crater with parts)