Clean WC:

Let's translate the sounds:

Bwaaaa - running in a four cycle, level flight.
Bweee - went to two stroke with up elevator.
Burppp - over the top, unloaded and ate its con rod.

Blubber - Since it ate it's con rod the rest of the exhaust sounds are mental imagery.
Blubber - Clean clouding up when he realizes he's blown another Fox.
Bwaaaa - And now he's really crying.

Haw. Got you!

Bill.