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HelicopterThunder TigerOther › GV-1 troubles
04-27-2004 03:27 AM  13 years agoPost 1
LowFlyer

rrNovice

Farmington, Missouri

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Im using a GV-1 with 811 servo. This is on a new Rap.50 V-2. I was flying with the GV-1 not inhibited due to breaking in the new OS .50 engine. We inhibited the GV-1 and developed a problem with the rpm suddenly increasing. At idle the throttle would surge whenever it felt like it with no real sense of timing and no imput from the radio. When it did this the servo was moving so it wasnt a surge from the engine.

We moved the inhibit on the GV-1 back to 100% throttle so it would not come in just to shake things out. But the govenor is still coming in and the throttle will increase during flight.

Ive made sure the battery leads are away from other leads and there are no other servos acting up. Ive had this happen in 2 different flying locations and im comfortable with saying its in the Governor, and not the enviroment or battery.

Dr.Dan feels like it may be in the sensor but we arent certain. Im ready order a new sensor but wanted to check with some others before I do.

thanks

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04-27-2004 09:54 AM  13 years agoPost 2
psyclick

rrNovice

Basingstoke, UK

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I had a similar problem with overspeeding on an Ergo 30, the governor was working fine, 97% on the magnet, all settings working ok, limits set properly etc, i also suspected the sensor.

I recently moved all the radio gear including the GV-1 into a Raptor 50 and the GV-1 now works perfectly using the same sensor, the only difference is that i had a DS8417 on the throttle on the Ergo, overkill I know, and I put a cheap 591 on the Raptor 50.

There are loads of discussions on here about what servo to use with the GV-1, and i'm not so sure about digital servo support with the GV-1.
(personal opinion)

If everything else is set up right and you have a spare one hanging about, it might be worthwhile trying a non digital servo.

Good luck

Neil.

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04-27-2004 01:46 PM  13 years agoPost 3
captain1

rrApprentice

Sydney - Australia

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I already answered you in the radio section but here's a copy of my reply just in case:

Lowflyer,

I had this exact same problem. My throttle would suddenly go to full and not drop down. The servo was stuck at full. Sometimes for a few seconds and once for a full tank!

I traced it to the sensor, but not what you expect. I found that the sensor wire had been touchiung the fan base and the insulation was exposed. Every time the sensor wires were shorted the govenor just switched off totally and the throttle servo went to full open!

Check for this!

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04-27-2004 03:20 PM  13 years agoPost 4
LowFlyer

rrNovice

Farmington, Missouri

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checking

I checked the wireing. capatain 1 but I ran the wire outside the frame and its not touching anything or exposed in any way.

I am going to try unplugging the sensor and flying it to see if that changes anything.

Still at it thanks for all the suggestions.

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04-27-2004 06:18 PM  13 years agoPost 5
LowFlyer

rrNovice

Farmington, Missouri

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GOTTER !!

It was in the govenor settings.

Dr.Dan YOU ARE THE MAN!!!!!!!!!!

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HelicopterThunder TigerOther › GV-1 troubles
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