Steve,

Governors control the prop speed, just about, no matter what the horsepower or speed that you have, except in exceptional situations.

Exceptional Situations:

1) Oil pressure is not getting to the governor and then to the prop.
2) You have enough horsepower to break the prop (with your plane at least 300 HP).
3) You have enough speed to go past the fixed prop stops (over 300 kts).

In all honesty, I haven't done the exact calculations on the above speed and HP.

If you are not in one of these exceptional situations, have the governor checked by a mechanic that knows how to adjust it, or send it for an overhaul to:

H & S Propeller Shop Inc
8220 Old White Lake Rd
White Lake Mi 48386-1154

800-323-0217

Tell Bryan or Mark that I sent you.

I had an overspeed and the first thing that I did was to have the governor overhauled. I did have 1,000 hours on the plane at the time. Much less and an adjustment should do.

Lorn

> From: steve <n5276j@aol.com>
> Date: May 29, 2012 11:09:08 AM EDT
>
> Hi All.
>  
> Got a question for  360 flyers with over 200HP and the Hartzell prop with 68" blades.  I need to know if you guys with the higher HP can bring your RPM's down to say 2000 or so while running full throttle at altitude of 12,000 to 17,500. I have to pull back power in order to bring the rpms down at alitude of 12,000 +.
>  
> steve alderman   360


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