In the pilot, Dr. Moffett thinks that Airwolf has been destroyed after a rocket explodes below the hill where it had fled. It then rises upwards from the hill.
"Fallen Angel" tops it- the chopper hiding behind a castle while an East German guy expresses his confidence that a Brainwashed and Crazy Archangel has eliminated the leadership of the F.I.R.M. (he hasn't, Stringfellow put blanks in his pistol).
In one of the later episodes, an enemy spy who had managed to infiltrate the F.I.R.M. is exposed and captured. When he says with a smirk that he'll just wait for the next prisoner exchange, Archangel replies, "We don't exchange what we terminate. Take him away."