On Sep 9, 7:35*am, brian whatcott wrote:
Morgans wrote:

"brian whatcott" wrote

There's one element that is very troubling: the cable break in the
middle. I am supposing that the bowden has triple internal helical
wires as low friction standoffs - and that repeated motion against a
wire cut the cable.

That shouldn't happen....

Unless the run is perfectly straight, any bend will flex the internal
cable each time it moves. *Metal fatigue still happens, given enough time.

If a plane is flown twice a week for thirty years, there could be
30 X 52 X 2 X 5 cycles on the throttle - and that's a highball estimate.
16000 cycles should not fatigue a wire, should it?

Brian W

The cable failure I had was to carb heat on an old Mooney Ranger, and
the failure was right at the carb. Finding a serious rubbing point
within the cable run itself seems unlikely, but that is what happened
to the OP.