Thoughts on Governors

[Auburntsts]

Originally Posted by bob888

Todd's comment about different gear ratios for narrow vs wide case engines got my attention. I have a narrow case engine and an MT P-860-3 governor from Vans. I can't find the ratio in the documentation that came with the governor. Anyone have more info on this issue?

According to MT, the 860-3 is 0.895:1, http://www.mt-propeller.com/pdf/list_gov_e-1057.pdf

[hgerhardt]

Van's used to sell McCauley governors before they switched to Jihostroj, so when I started FF, I bought one of Van's McCauleys. It's worked flawlessly for 700 hours now. It maintains very tight control over prop RPM with no overshoot, unlike what I hear from many other airplanes doing missed approaches around here.

Heinrich

[rvdave]

Originally Posted by hgerhardt

Van's used to sell McCauley governors before they switched to Jihostroj, so when I started FF, I bought one of Van's McCauleys. It's worked flawlessly for 700 hours now. It maintains very tight control over prop RPM with no overshoot, unlike what I hear from many other airplanes doing missed approaches around here.

Heinrich

That's good to hear.

[Tim Lewis]

Originally Posted by rocketman1988

For those of you that have the MT governor, would you use it on another aircraft?

The others I have looked at are the PCU5000 and the Hartzell. Anybody have any issues with those?

Your insight will be greatly appreciated...

I had an MT governor with Hartzell CS prop. I flew that combo 800 hours or so. The MT governor's serial number was not covered by the recent MT SB. But the disingenuous way MT promulgated their SB (claiming high compression and/or electronic ignition engines were impacted, when we knew two stock engines with dual mags had MT failures) caused me to lose confidence in MT's engineering quality and/or Service Bulletin honesty. I took my 800hr MT off, and replaced it with a PCU 5000.

I like the PCU 5000 so far. It has less rpm seeking in operation (MT would oscilate in rpm at some speeds). PCU will govern down to very low rpm, which is a nice engine-out safety feature. Hartzell's governor doesn't do this, which pushed me to give PCU a chance. Glad I did.