the prop was capable of being reversed
A bit of thread drift, but okay....
Have a look at my post #963 here:
http://www.pprune.org/private-flying...videos-49.html
I did all of the developmental testing on this aircraft, and the MT prop is magnificent!
This is the only piston powered Cessna ever with a reversing prop. It is incapable of entering reverse in flight. My 13 page report describes this in great detail.
I have flown Twin Otters just nudging into reverse in flight, accompanied by a DHC test pilot and gosh, do they go down fast doing this!
I flew testing in a Siai Marchetti 1019, which has a 400 HP turboprop engine and reversing propeller. There is a locking control to prevent unintended entry into reverse, But, I managed to once accidentally bypass it in the flare while moving an adjacent control, and the plane about stopped in the air, and dropped the last couple of feet. Not good at all! Nothing hurt, but it could have been much worse.
Lake Amphibians are commonly fitted with MT reversing propellers, which are wonderful for precise water maneuvering.