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[ Failure ] Tail Rotor belt failure
#4
in a perfect world i suppose we would find a Kevlar/aramid reinforced cogged 3VXK1120 and 3VXK1180 belt to fit our needs.

it makes sense why it would be a sudden failure coming into a hover after getting warmed up after a flight and finally letting loose at a high power/torque setting with lots of pedal needed. :/

i love the idea of a cogged belt for additional cooling/less stress on the belt around the pulleys, easier power transmission, however i think the real culprit is the bands weakening. i dont know what the original bands are EPDM, poly, or aramid?

my belts are getting replaced due to their age, i understand these are a 3 year item? i have new mitsuboshi red label main belts on the way for the same reason and i havnt ordered tail drive belts yet, so i am interested in what we can find!!

i just wonder if there is a kevlar reinforced/not wrapped, cogged belt out there.
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Messages In This Thread
Tail Rotor belt failure - by Graeme Smith - 02-08-2026, 10:05 PM
RE: Tail Rotor belt failure - by Lyle Swallows - 02-09-2026, 02:34 AM
RE: Tail Rotor belt failure - by Graeme Smith - 02-09-2026, 08:37 AM
RE: Tail Rotor belt failure - by Lyle Swallows - 02-09-2026, 09:49 AM
RE: Tail Rotor belt failure - by Graeme Smith - 02-09-2026, 10:55 AM
RE: Tail Rotor belt failure - by Jared Hartzell - 02-09-2026, 08:45 PM
RE: Tail Rotor belt failure - by Graeme Smith - 02-09-2026, 09:01 PM
RE: Tail Rotor belt failure - by Jared Hartzell - 02-09-2026, 09:04 PM
RE: Tail Rotor belt failure - by Graeme Smith - 02-10-2026, 07:15 AM
RE: Tail Rotor belt failure - by Lyle Swallows - 02-10-2026, 07:38 AM
RE: Tail Rotor belt failure - by Homer Bell - 02-11-2026, 12:42 AM
RE: Tail Rotor belt failure - by Graeme Smith - 02-15-2026, 04:40 AM
RE: Tail Rotor belt failure - by Graeme Smith - 03-07-2026, 03:13 AM
RE: Tail Rotor belt failure - by Lyle Swallows - 03-11-2026, 02:05 AM
RE: Tail Rotor belt failure - by Graeme Smith - 03-12-2026, 10:53 PM

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