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HomeRC & PowerAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › What are the GV-1 Limitations and what makes another Governors Better?
03-11-2010 12:08 PM  8 years agoPost 1
Rototerrier

rrVeteran

Fayetteville, GA - USA

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I don't mean to start a war here, so please keep it civil. I have been running 2 align governors for over a year now and I can do 4 point tic-tocs, rainbows, leapfrogs all day long and the engine and headspeed stay right where they are told. I just purchased, from here in the forums, a GV-1 to go on a gasser. I don't want to buy a skytach and this will be convenient for the Max RPM and Headspeed features. Reading the specs of the GV-1, it says it can keep everything within 1%. The align governor says the exact same thing.

I guess my question is, if most all of these governors say they keep speeds within 1%, whats the difference? I am not saying there aren't any...I just don't know and am asking.

I see a lot of posts in forums about how the GV-1 is old and all these other governors are "better", but "better" is soo subjective. 99.9999% of the time the person posting the "opinions" has

1) Never owned one , but seem to have all the facts without anything to back them up.

2) Owned 1 and switched and because they switched, whatever they switched to is now the best

3) Has a friend of a friend who had some opinion and they propogate it like it's fact

4) It's old tech therefore it can't be any good anymore. I see this one a lot. And again, usually with nothing more said than just that.

Can someone please help me figure out what the performance differences are between a GV1, MultiGov, Align, Throttle Jockey, ATG etc... when they are all claiming to keep the RPM within a pretty tight range? And I specifically mean performance differences. Not really concerned about ease of use, what kind of display they have, etc. Just the most important thing, how do they differ when it comes down to keeping the blades a'spinin?

Thanks

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03-11-2010 01:40 PM  8 years agoPost 2
bkervaski

rrElite Veteran

Birmingham, AL, USA

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The GV-1 is great, but it's a bit dated at this point. Nothing wrong with it, it's a very capable governor, but I wouldn't buy one new, a used one for $50 is a good purchase, otherwise just get one of the many current governors.

I used GV-1's for the longest time, this last season I switched to the ATGv3, it's a lot less expensive, faster, and more tolerant to less than perfect sensor distances.

The only thing I don't like about the ATGv3 is that it takes longer than I want to spool up once I flip into another headspeed.

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03-11-2010 02:43 PM  8 years agoPost 3
Rototerrier

rrVeteran

Fayetteville, GA - USA

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but it's a bit dated at this point
Again, I don't know what that means. A bit dated, as in over the years it has somehow lost its ability to keep the head speed within 1%? Or does this mean it doesn't look good anymore because we have been looking at it for so long. Would a newly designed, cool red/yellow/orange/green case make it no longer dated?

No offense, and I do appreciate the input, but this falls under my #4 from the original post.

I also read on another forum:
You can bypass the lag of the gv1. Set it so it cant go back past half throttle then it wont travel so far and have as much lag.
So as far as lag and responsiveness, it can be adjusted. To me, even if something is ancient, if the developers built in enough tweakability and it operates faster than a throttle can actually throttle up...it should be good forever.

And I too agree about the ATG thing. Buddy of mine had an ATGv2 and that slow transition was ridiculous. I flew it a couple times and we weren't sure if it was the YS engine or the Governor. I guess since you just said this, it must have been the governor. We/he didn't mess with it long enought to know, but I would hope there would be a setting to tweak that delay. He dumpted it for an align...which has been working flawlessly ever since.

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03-11-2010 03:11 PM  8 years agoPost 4
hornet dave

rrKey Veteran

Cedar Rapids, IA USA

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The gv-1 reacts slower than every other governor I've seen; what you notice is that the headspeed with a GV-1 will fall noticeably more when the engine is loaded compared to it's peers, and it takes longer for the headspeed to recover to it's desired setpoint.

So, the gv-1 performs worse than it's peers, it is physically huge, it costs twice as much, and the sensors break too often and cost the most.

I really can't see any reason to buy a GV-1, unless you are familiar with them and like having the LCD display.

I got a fever! The only prescription is MORE 6HV

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03-11-2010 08:14 PM  8 years agoPost 5
hgh001

rrApprentice

New Zealand

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I had GV-1's on my machines, but they don't handle 3D that well. I replaced my GV-1's to the Trottle Max currently available from ModelAvionics.

The GV-1 is ideal for F3C. Response is significantly faster on the Throttle Max performs well with a fast servo on throttle in example a 9254.

If your motor performs as it should the Throttle Max should do the trick.

The Throttle Max is a limmiter and the GV-1 is a governor. I initially had a RevMax and it made a significant change in flight performance. Make sure you get the latest Throttle Max if you intend to use it with FASST.

Heinz

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03-12-2010 05:38 AM  8 years agoPost 6
skytrekin

rrApprentice

Anchorage, AK

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Maybe other governors have more adjust ability and features than older ones due to improvements in technology and manufacturing processes.

I can only speak from the limited experience I have with 2 governors you mentioned. I have a multi-gov and the align gov. They both work like you say in controlling speed, however I was recommended the multi-gov by a close friend and have been very happy with it. Super easy to set up, lots of adjustments if you want, and small and light weight in the heli.

The Align was cheaper, and it works fine, but limited on adjustments, and you need a skytach to set head speeds if you want them accurate.

Take what you wish out of my limited experience.

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03-12-2010 11:16 AM  8 years agoPost 7
Rototerrier

rrVeteran

Fayetteville, GA - USA

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I certainly do appreciate the input. Being that this is going on a gasser, it will probably be fine. I don't think this thing will be doing many tictocs.

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03-12-2010 03:39 PM  8 years agoPost 8
bowies12

rrApprentice

Surrey - UK

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What I like about the GV-1 is the direct relationship between on screen percentage and headspeed. ie. 65% is 1650 headspeed, 73% is 1730 80% is 1800 etc etc.

Also the ability to turn it on or off easily in any flightmode.

Its not the easiest to learn to setup, but once you've done a couple its easy.

Fat birds can't fly

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03-12-2010 04:12 PM  8 years agoPost 9
Rototerrier

rrVeteran

Fayetteville, GA - USA

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Anyone happen to know if the Align governor sensor will work with it? Is it as simple as just swapping out the plug? Crossing wires maybe? Would be nice if it would work so I could just keep the same sensor mounting position.

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03-12-2010 05:13 PM  8 years agoPost 10
BarracudaHockey

rrMaster

Jacksonville FL

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To your question....

If you watch the blades in a skytach of various governors under various loads, you'll see what makes a governor good. Whether or not thats important to you is up to you.

As others have said, a Multigov for example is less money, takes up less space, weighs less, reacts faster, has both limiter and governor mode, and is dead simple to set up. Plug up the screen, set the high and low throttle points, set your gear ratio, then flip the flight mode switch and set the rpm on each one. If you want real time mixture control, well its got that too, and is half the price and uses a standard sensor.

Andy
AMA 77227
http://www.jaxrc.com

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