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HomeAircraftHelicopterGasser Model RC HelicoptersOther › I get asked this all the time (gv-1 setup), so here it is in writing
10-23-2013 04:31 AM  4 years agoPost 81
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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why would you want a on and off switch for the gov
a couple of reasons:
  1. to set up your throttle curves. Without the on/off switch the governor always engages (except as listed below)
  2. engine breakin - depending on a number of factors, it may be easier to do without the governor
  3. other flight requirements - there may be other reasons you want to use your throttle curves for certain types of flying or other maneuvers.
if you want the governor to not engage in a particular flight mode (without the on/off switch), set the speed setting for that flight mode to 1000 rpms. At least with the GV1 that effectively turns the governor off. There is also a setting that will turn it off at near to full throttle regardless of speed setting.

with the 701/750 you can set the off RPM differently and all of the settings you need to adjust to make it work effectively with gas engines are exposed on the governor expert menu.

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01-29-2014 02:39 PM  4 years agoPost 82
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I have a question or two regarding this setup using a DX7S. In the instructions there is the following:
AUX rpm goes to a channel tied to your idle up switch or a channel on a 3 position switch.
The DX7S only has a single idle up switch. Could I use my flap switch(It's a 3 position switch) set to use governor? I am confused since if I use the flap switch it would not be tied into my throttle curves which is my typical setup on an electric model. I do not need 2 idle ups and could use one. Do I have to use a three position switch for the AUX rpm or could I use my Idle up switch?

Any help anyone has would greatly be appreciated or if anyone is using a DX7S could you please post your setup?

Also, I do not have a tach and for my first few flights I'd like to use a throttle curve. If I use a linear curve up to %100 is there a danger of over revving my motor or can I run it full bore? I have no experience with these motors and I would not be able to tell from %90 throttle to all out and I want to make sure I do not kill the motor.I have a chance to finally maiden my Whiplash this weekend(30 degrees with minimal wind) and was hoping to get this figured out by then.

Tia,
Andy

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01-29-2014 04:39 PM  4 years agoPost 83
ocr231

rrApprentice

Webster MA

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Hi Andy,

When are you going to maden your heli.I ask because sunday looks good and if you wanted to come fly with me i could help you and show you how set it all up.Just a option.

You will definitely have to set some throttle curves.Linear will not work with a gasser.

Adam

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01-29-2014 04:45 PM  4 years agoPost 84
HeliNutAndy

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worcester, MA USA

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Hey Adam,

Sunday would be great. I don't know where you fly but I have a little propane heater that helps a little with the cold hands It's been a little over a month since I've been flying since it's been so cold but I think this weekend will be o.k.

Thx,
Andy

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01-30-2014 05:24 PM  4 years agoPost 85
rbort

rrProfessor

Franklin, MA - USA

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Shouldn't need much heat on Sunday
And that's the best thing for you, to go see Adam and get it set up properly by someone who's got the experience with gassers.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3288 flts
Whiplash V1-2 Hanson 300, 1570 flts
Whiplash V2 Hanson 300, 402 flts

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01-30-2014 05:39 PM  4 years agoPost 86
HeliNutAndy

rrKey Veteran

worcester, MA USA

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Thx Raja and Adam. I have to admit that the gasser community has been very helpful and it's great to see. I do not know if it's because gassers(IMO)are more challenging or what but you guys are great.

Thx again,
Andy

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02-03-2014 02:36 PM  4 years agoPost 87
HeliNutAndy

rrKey Veteran

worcester, MA USA

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I got to go flying with Adam yesterday. I gained much insight from him which I can hopefully remember and use down the road. Thx again Adam.

I'm having troubles getting an extra channel to work with the GV-1 and my DX7s so I was not able to use the governor. I could not get the GV-1 to cycle through different rpms using any free channel coming out of the Ikon. I tried multiple switch assignments in my tx and all of the available ports and just could not get the gv-1 to recognize the signal. I know it works(gv-1) because when I attempt to use any of the used channels the rpm does change on the gv-1. I may need to use a 'full' size receiver instead of just satellites. If anyone has had this problem I'd appreciate the help.

Tia,
Andy

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02-03-2014 07:32 PM  4 years agoPost 88
rbort

rrProfessor

Franklin, MA - USA

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DX7S
You only have 7 channels right? Well what you need to do is use a Y harness with another channel to double up usage for the gv-1.

Use Aux 2 for the speed selector on the gv-1 and & harness the gear channel into the gv-1 on/off switch and the gyro gain channel.

What happens is that the gv-1 will be ON and functioning while the tail is in HH mode and off when the tail is in "normal/rate" mode.

I realize you're using the ikon thingy and I have not played with that, but it would be on the order of the same idea if you can apply it.

I've setup the DX7's like this for other people and got it to work. JR radios can be pretty particular, and you have to setup things in the screens in a certain way and order otherwise if you turn something on you're not supposed to it will turn something else off. Its complicated, you gotta know what you're doing to get it right.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3288 flts
Whiplash V1-2 Hanson 300, 1570 flts
Whiplash V2 Hanson 300, 402 flts

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02-12-2014 02:54 AM  4 years agoPost 89
DaweMD

rrNovice

Beaumont, Alberta, Canada

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Hidden Values in GV1
Hey Raja, just a quick question on the hidden menu.

What does LmHV stand for?
What does GLmt stand for?

You mention values for the Spectra G and the 1005 Gasser, what would i use for the Whip gasser with RC270 max engine?

Thanks in advance
Mike

Michael Dawe

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02-12-2014 03:04 AM  4 years agoPost 90
rbort

rrProfessor

Franklin, MA - USA

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Values
LmHV controls how far the servo throttles back during overspeed.
Glmt controls the reaction of the governor to load changes.

Use LMHV of 0% and Glmt of 30 for the Whiplash with a 7.5mm throttle servo horn.

-=>Raja.

MA 1005 Hanson 280, 4210 flts
Spectra 27 3DMax, 3288 flts
Whiplash V1-2 Hanson 300, 1570 flts
Whiplash V2 Hanson 300, 402 flts

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02-12-2014 04:55 AM  4 years agoPost 91
DaweMD

rrNovice

Beaumont, Alberta, Canada

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Values
Thanks Raja. I will give it a go.

Michael Dawe

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03-05-2014 10:06 AM  4 years agoPost 92
Whiplash700G

rrNovice

Warrington uk

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GV1 & Vbar
How to setup a GV1 with full size vbar with only 2 channels available

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02-12-2015 01:41 AM  3 years agoPost 93
OuttaControl

rrVeteran

Springfield, Missouri -United states

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GV-1
Good post sir!

Mine fall down, went BOOM!!

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09-25-2015 08:18 PM  34 months agoPost 94
Luisworl911

rrNovice

Los Angeles CA 90044

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gv-1 governer set up
would this set work also with a spektrum DX9 I want to set up my governor to my predator SE gasser any advice on set it up I have never set one up any help would be very appreciated thanks.

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09-25-2015 09:47 PM  34 months agoPost 95
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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it will work with virtually any radio even if you don't have extra channels for the RPM setting or on/off functionality

in its simplest form you can just connect it to the throttle channel and plug the throttle servo into it (and of course the sensor). Very limited functionality but it will still provide a single RPM setting

with a DX9 you should be able to use all the functionality though

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07-08-2018 07:49 AM  12 days agoPost 96
OneHoof

rrApprentice

Cold Spring, Kentucky

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I just got my first Gasser with a GV1 governor.

The seller did a demo flight and it flew great. Although it didn’t throttle down, kick off for landing and it must have had some negative pitch, because it plopped down pretty hard.

(The gyro probably sensed movement and attempted to correct, while on the ground and this might have broken the tail servo arm)

When I took the controls and brought it up to a hover it started to spin on me, and I did a hovering auto to save it.

We replaced the broken servo arm/horn...

Anyway, I just looked at the throttle and pitch curves and almost was concerned when I saw the throttle curve at 100% INH INH 50% INH INH 100%.

Is that normal? Or how should it be set?

I need to go double check some things...

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07-08-2018 02:01 PM  12 days agoPost 97
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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that would be more like an idle up instead of a normal curve. Start it with that and you'll have a bad day

Proprietor - Gas Powered Helicopters

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07-08-2018 04:24 PM  12 days agoPost 98
RM3

rrElite Veteran

Killeen, Texas - USA

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Yup, no fall back curve should the Gov fail.
I have a Gv-1 and have it set for hover and idle 1. Plus stick switch is enabled as is an aux to enable or disable the gov from the Tx.
Setting up a curve in the Tx assuming the gov will always work is a green horn move and guaranteed to lead to a bad crash when something goes wrong.
I’ll add that that curve is wrong for a gasser to begin with. That curve is typical of an electric. Gassers typically have more of a Logarithmic shape above and below center in idle up due the throttle response of gasoline two stroke carbs.

showing a preference will only get you into trouble, 90% of everything is crap...

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07-08-2018 06:24 PM  12 days agoPost 99
OneHoof

rrApprentice

Cold Spring, Kentucky

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The seller texted me.

I did not have the radio scrolled to normal mode.

I was looking at one of the idle up modes with the V curve.

In normal mode the throttle curve comes down normally.

I just wanted to make sure it was set right.

This is my first Heli with a governor.

It is a beautiful bird.

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07-08-2018 08:28 PM  12 days agoPost 100
RM3

rrElite Veteran

Killeen, Texas - USA

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its still straight line throttle... Gassers running without a gov have a different curve, and should always be set up that way should the gov fail OR fail to engage. There should be very little difference between RPMs when the Gov is on vs when its off. especially that delay that manages how quickly the RPMs come on or off (annoying and frightening if not set right and in line with what the TX has for the rotor pitch change speed when going from hover to idle 1 or 2). I normally have mine set up for when the gov is on the RPMs are a little lower compared to when its off...
Tune the curve to give you the rotor RPMs on the heli with the gov off (remove it enirely from the heli if your not sure), then incorporate the gov to hold the RPMs you want when it is engaged.

Keep in mine the GV-1 is a great Gov for gassers. BUT it does have a hidden menu that is not normally accessible that must be adjusted accordingly, namely the LLhover and LLidle (names?) for it to work properly with the unique throttle response of a gasser carb. Without those set properly the gov will not work as intended. The video Raja posted about setting the GV-1 is very informative to giving insight to those settings, their effects and purpose.

showing a preference will only get you into trouble, 90% of everything is crap...

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HomeAircraftHelicopterGasser Model RC HelicoptersOther › I get asked this all the time (gv-1 setup), so here it is in writing
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