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10-13-2005 10:24 AM  12 years agoPost 1
The Edge

rrNovice

The Netherlands

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Hello everybody,

I have a problem with my governer. When I want to go back from IDL2 to IDL1 it seems that there is a delay. It will take a few seconds when its back on IDL1. The heli setup is already in IDL1, but the engine is still running in IDL2. What can be the cause of this.

greetings from a JR pilot from holland.
Jasper

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10-13-2005 06:24 PM  12 years agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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If this is a GV-1, the lag is normal.

Ben Minor

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10-14-2005 07:48 AM  12 years agoPost 3
OsiViper

rrVeteran

Farmington, NM

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If this is a GV-1, the lag is normal.
That is true, the GV-1 is a little slow when changing modes, but one thing that helps is a faster servo.. alot of people dont agree, but i had a 3151 on throttle with my gv1 and then i put a 9252 on it and i could notice a difference, im currently trying to get a 9253/9254 to put on throttle to see how well that does.

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10-14-2005 10:51 AM  12 years agoPost 4
Al Magaloff

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12,199 Posts- Enough Time Wasted. See Ya!

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Try one of the newer governors. The slowest servo made, is fast enough for a GV1. Even a sail winch or retract servo qualifies!

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10-14-2005 12:53 PM  12 years agoPost 5
poerQwa

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Rotterdam, The Netherlands

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could it be your engine is running lean?

greetz,

Marc

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10-14-2005 05:19 PM  12 years agoPost 6
Al Magaloff

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Turn off the governor. How does it fly on your curves? Some people expect a governor to tune the motor for them also.

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10-15-2005 08:54 PM  12 years agoPost 7
ohs

rrApprentice

New Zealand

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Have to agree with Al, the control loops in the GV1 are really slow. It was designed in the pre-3D era, and is definitely optimised for stability and not speed. There's no benefit to be gained from a faster servo.

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10-15-2005 09:57 PM  12 years agoPost 8
OsiViper

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Farmington, NM

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you can make the GV-1 more agressive by using it as a limiter more than a govener.

Just do it like Szabo does it and set idle up curve to 100 on all points.. the govener is very very agressive then!

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10-15-2005 10:07 PM  12 years agoPost 9
Al Magaloff

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That's interesting, Osi!

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10-16-2005 12:04 AM  12 years agoPost 10
OsiViper

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Farmington, NM

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Al, i was messing around with the gov one day and i noticed that when i have the Throttle hold on and i flip it off at half stick in idle 1 which is 36% throttle, the gov slowly brings up RPM, but if i flip it at full stick which is 69% throttle, it comes up alot faster.

so i changed it so idle up 2 is all points at 100, and the thing is FAST now.
Only thing i have to worry about is the sensor on gv1 dying, but thats why i left idle 1 in a normal throttle curve, so if im flyin around and sensor dies i just flip it to idle 1 from idle 2 and im still fine.

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10-16-2005 12:14 AM  12 years agoPost 11
Al Magaloff

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Cool! Some of the most enduring discoveries in history, were happened upon by accident!

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10-16-2005 02:32 AM  12 years agoPost 12
Dr.Ben

rrMaster

Richmond, VA, USA

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I'd be interested to hear how the GV-1 acts as a Rev limiter with all throttle curve points set at 100% since it ignores the throttle curve once it's engaged. AZJ uses the Model Avionics product as I recall, a different animal entirely than the GV-1.

Ben Minor

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10-16-2005 03:21 AM  12 years agoPost 13
OsiViper

rrVeteran

Farmington, NM

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Dr. Ben,

With the GV-1 Engaged, it doesnt completely ignore the Throttle curve like i thought it did. it just uses it to tell how agressive and fast it needs to react.

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10-16-2005 04:19 AM  12 years agoPost 14
Dr.Ben

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Richmond, VA, USA

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That's interesting.

When I get the chance, I'll ask a friend of mine who knows the Futaba engineer who actually designed the GV-1 to ask him how the GV-1 interacts with whatever throttle curve is in the transmitter.

Ben Minor

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10-16-2005 09:30 AM  12 years agoPost 15
OsiViper

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Farmington, NM

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All i know is its about 100 times more agressive than it was before.

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10-16-2005 02:44 PM  12 years agoPost 16
RCfan

rrKey Veteran

Longwood, FL USA

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I've noticed the GV1 reading the throttle curves as well, even though all indications (documentation) is that it shouldn't. What I've done is created an additional condition (14MZ, gotta love it), which puts throttle at 100%. I have normal, idle1 & 2 on switch SE (which also controls GV1 speed) and idle-up 3 on SF (governor set to remain at speed set by SE, but it doesn't; goes to GV1's max setting). I can flick SF to get maximum performance from the GV1 and still have normal throttle curves with SE if something goes wrong or I don't want to use the governor.

Dr. Ben, it would be great to finally get an answer to the question regarding what the GV1 is doing with throttle curves.

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10-18-2005 04:25 PM  12 years agoPost 17
Timbers

rrApprentice

Wisconsin

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Yes
It is true, I set mine to 100 across the board last night and tried it, it is very agressive, you don't hear the engine come down in RPM like it does when you run a U curve.

...Tim

You fly RC helicopters? Can I have a ride?

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