yeah , guinness, i got off topic there, but i'm not sure how engine damage in modeled in AH , is the smoke oil leaking ( which should stop when tanks run dry)or is the smoke from a eng fire and does the fire cause more damage (fuel thnks exploding , wing failure)and would puting out the fire stop the smoke,yes i think you could blow out a fire by diving but is it modeled, sounds like a question for pryo