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-   -   MT P860-3 Prop Gov fail. (https://vansairforce.net/community/showthread.php?t=140879)

vic syracuse 08-17-2016 05:00 PM

Electronic
 
How about electronic ignition? Anyone running that, too.

Vic

Auburntsts 08-17-2016 05:05 PM

Quote:

Originally Posted by vic syracuse (Post 1104166)
How about electronic ignition? Anyone running that, too.

Vic

Nope--Slick retard breaker mag with Slickstart on the left, Slick plain on the right

woxofswa 08-17-2016 05:10 PM

Bendix 1200's for me.

Weasel 08-17-2016 05:13 PM

Bendix, Lightspeed

DanH 08-17-2016 05:52 PM

A front governor is driven from a location near the crankshaft's fundamental vibratory node, which means it would see very little vibratory amplitude even if the crank was doing the Chubby Checker ;)

For the youngsters who may be present: https://www.youtube.com/watch?v=pHGXwQeUk7M

Duh.....wrong!

That's what I get for writing without thinking. The governor is driven off the forward end of the camshaft, which, in terms of torsional vibration, is likely to be a very active location.

Dan

Walt 08-17-2016 05:59 PM

Anybody know off hand what the ratio is for the governor this way I could look for it on my spectrum analysis runs.

vic syracuse 08-17-2016 06:43 PM

Ratio
 
.895:1 for the IO-540

Vic

N402RH 08-17-2016 08:48 PM

I am currently in the middle of swapping the MT for the Hartzell and this is not proving to be easy. The control arm location is totally different and it looks like I will be talking to Hartzell in the morning.

Rob Hickman
N402RH

gerardb 08-18-2016 01:48 AM

Quote:

Originally Posted by N402RH (Post 1104254)
I am currently in the middle of swapping the MT for the Hartzell and this is not proving to be easy. The control arm location is totally different and it looks like I will be talking to Hartzell in the morning.

Rob Hickman
N402RH

Please post the reply from Hartzell. I'm in the process of doing the same swap.

Weasel 08-18-2016 04:12 AM

Does anyone have information on the 4th failure that has been mentioned? Was it also a C4B5?


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