|
|
On my O-320 I found out that a common failure is that the plug comes loose on the front of the crankshaft. When this plug comes loose, there is no oil pressure to the prop.
On my plane, when this happened 2 years ago, I am sure glad that the prop went to high RPM(low pitch). Had the prop feathered, I would not have been able to get back to the airport.
On the 4 cylinder Lycomings, because of this common failure mode, a full feathering prop is not the way to go.
Lorn
From: Bill Hannahan <wfhannahan@yahoo.com>
Date: December 16, 2009 10:02:31 AM EST
Subject: Legacy Crash Watsonville?
Some thoughts on props. While building my 360 I considered going with a feathering prop. At the time I could not come up with a strong advantage for it, and went with the flow.
1… My question was and is, what are the most common failure modes with a featherable prop and governor combination, and what are the probabilities of each of those failure modes?
.
.
.
Regards,
Bill Hannahan
wfhannahan@yahoo.com
--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,650 hrs, N31161, Y47, SE Michigan
|
|