I suspect being part of the team that changed a Herk prop at Gander, in under 12 hours, despite the temperature never rising above -22. One major contributor was the Captain, who taxied the aircraft to the end of the lazy runway so that we could get the ground runs done. Funnily, our prop blew at Gander on the way to do a prop change recovery on Bermuda. The second prop change was much more comfortable.
Smudge