Governers...

While there are many that use a RevMax and flat 100% throttle curves and are happy with it, Model Avionics, the manufacturer of the unit says that that is not how it is designed to be used. If you want a governor then buy a governor.
The Rev Max is designed to be used with functional pitch curves and just give that little extra to help prevent over speed in the cases where you can not get the throttle curve just right, like in a power decent.
You will actually get better performance buy using a governor as a governor and a limiter as a limiter.

I am lazy and do not want to spend a month setting up perfect Throttle curves so I buy only Governors. I have both TJ Pro's and GV-1's. The GV-1's are easier to set up and use and the TJ is more accurate. I have not personally used any others so I can not compare them.

A R30V1 still has a 5mm spindle and you say you are running wood blades.
Regardless of blades used, with the 5mm spindle and plastic head block I would not run over 1750.

There are advantages to each type of gov/limiter. I used the GV-1 for years until I started more aggressive flight. That is when I really noticed that it has a lot of lag for throttle input. It has to sense a decay of head speed before it starts to ramp up the throttle. I went back to throttle curves and the lag went away.
I always recommend setting up your machine with curves and when the engine is broken in and everything is tuned appropriately, then activate the governor of your choice. If you are using a rev limiter, you can use that from the start to keep from overspeeding.
The set up that I have ended up being very pleased with is the RevMax and using my standard throttle curve. You can raise the throttle curve about 10 or 15% to insure the engine is operating at the given rpm or run a straight curve (which I don't recommend). You of course will have your normal mode to switch to in case the rev limiter "wiggs out" or if you have a sensor malfunction.
One other feature that I like to use is the remote gain on these so that if your are flying in exceptionally windy conditions you can just bump up the head speed during the flight.

	Quote: Originally Posted by DsWright
	TT .36, on 15% now, will go to at least 20% soon.... Im having fuel availability issues with powermaster 20/20 that i usually run in everything....

I believe TT recommend the max head speed on stock blades to be 1850. However people run anything up to 2000. The best thing to do is to play around with your curves until you can get it where you are not bogging down the engine when giving it full collective, and it doesn't overspeed when you are reducing collective - its kind of trial and error until you find a setting that works for you.

	Quote: Originally Posted by RyanW
	There are advantages to each type of gov/limiter. I used the GV-1 for years until I started more aggressive flight. That is when I really noticed that it has a lot of lag for throttle input. It has to sense a decay of head speed before it starts to ramp up the throttle. I went back to throttle curves and the lag went away.

You know I recently noticed that I seem to get better performance with my governor turned off than with it on.....I'll bet you this is why.

TT Does say 1850 max for the properly glued woodies.
That is why I tell people to shoot for 1750 so that if you get an over speed in a decent or miss the mark while setting up you are not over or pushing red line.
I've seen too many woodies explode trying to run 1850 and getting a little over or have an air pocket in the gluing of the grips.

There are a lot of people (myself included ) that ocasionally run headspeeds way above what they shoud be running.

The truth is, I've yet to see a 30 size (nitro) machine perform anything but basic aerobatics with any authority, better to be safe and run the lower head speed.

I have been using the Model Avionics Revmax since day one, couldn't afford a GV1 governor at the time. However, I have been completely happy with the Rev Max. It kept my headspeed within 10-20 rpms at all times. After using it, I actually prefer it over a governor because you still have to learn how to set up your throttle curves (you can with a governor too, for backup) and there is little if any lag in the throttle response when flying 3D.

Regardless of whether you are using a governor or limiter you should always setup your curves correctly beforehand. This way if you have a governor/limiter fail, your heli wont go zipping out of control.

hi guys,

i have a venture 50 with a hyper and i am having problems getting it to keep running ie the engine stops, when the head speeds up doing 3d.

i have a gv-1 on the way hoping that this will help. i have no one here to assist me as i am the only guy flying a nitro heli.(that i know of).

i have read the instructions on the futaba web site and it seems pretty straight forward, is there anything i need to know to make the installation easier???

i am using a 14 mz and have a 9252 on the throttle.



aerowiz.

[west-wot]

hey guys would a futaba gv-1 governer work on a raptor titan with a os 50 hyper powering it. i dont want it to do anythign fancey just put it into a scale body as i heard u need a governer when u use a os 50 hyper and wot 1 would b better a futaba gv-1 or csm revlock 10

west-wot

[Toro]

for scale you wont need a governer. The only reason for governing, is to keep the head speed constant under violent maneuvers. For just flying circuits (as in a scale ship) you wont need that. Just bring your throttle curves down and tame that hyper down a bit.

[OverTemp]

The GV-1 was cheaper than a normal tach for me.

I just dialed in the heapspeeds I wanted and then turned the GV-1 on and off using a switch on the radio. If I heard an RPM change I adjusted my curves until I no longer heard the change. This is MUCH better for setting curves because it can be used in any phase of flight with only one person doing the work. I had each curve, except normal, mirror what I wanted from the governor (idle-up). I had the GV-1 set to release the throttle to the radio at about 1/3-1/2 stick in normal mode and obviously throttle-hold.

I normally flew with the GV-1 on, but I could fly with it off if I wanted. If the GV-1 failed or threw a mag or sensor I wouldn't be at risk of over-speeding the head... it would revert to the throttle curve I had selected. I might not even notice unless I was doing high forward speed back-flips.