Not true in many (most) turbines.

Bart

wrote:
On most helicopters that I have been in, testing the split (sprag
clutch) is part of the power on preflight. It seems kind of odd that
such a catastophic clutch failure would occur without warning in the
preflight. Perhaps they skipped that step.

Dennis H.

"Cam" wrote:


Cheers Bob, Presuming they use a sprag type clutch, I'd imagine it would
have to be very badly worn to lock up in the driving state. Of the different
types (sprag) I've seen, they seem inherently bullet proof buy there design.
I'd love to see a fataly damaged one just to see how they wear.


Dennis Hawkins
n4mwd AT amsat DOT org (humans know what to do)

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