Clues for the word "PROPJETS"

We've had 3 crossword clues used for this word, and seen it 3 times in crosswords. It was last seen in Pat Sajack's Code Letter crossword on September 28, 2013.

Referring Clues

Some fast planes
Fast planes
Some commuter planes

Last Seen In

Pat Sajack's Code Letter - September 28, 2013
Pat Sajack's Code Letter - May 21, 2009
USA Today - February 07, 2006