[rdcbn]

Thats been floating around for a long time.

First saw it in on the board during flight training in the 1980s.

It refers to a missing engine, which would have been a piston engine, so it probably dates back to the 1950s at least

It still cracks me up every time I see it.

[rlmorel]

LOL, what do you think? I could see these exchanges...