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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › GV-1 magnet or optical?
11-03-2004 12:12 AM  13 years agoPost 1
helibird

rrKey Veteran

St. George, UT

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Hello,

Looking at buying a GV-1 and was wondering which is better the optical sensor or the magnetic?

Do I need a fast servo for it?

What's the best way to set up with a JR 8103 and a 7ch JR770 rx?

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11-03-2004 10:00 AM  13 years agoPost 2
Drunk Monk

rrProfessor

Preston, UK

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After having a few broken normal sensor for no reason, I'd definately be tempted to try an optical one.


Stephen

I only open my mouth to change feet.....

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11-03-2004 12:45 PM  13 years agoPost 3
Garry-Boy

rrKey Veteran

Moscow, Russia

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Sorry for maybe a stupid question, but one could change the sensor on the GV-1 from the original to optical without any problems? Did I get it right?

Garry.

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11-03-2004 01:16 PM  13 years agoPost 4
nivlek

rrProfessor

Norfolk England

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You can substitute an optical sensor for the original hall effect sensor,
but I've used the original sensor in my Mystar 46 for the last six years without any problems.I had to replace the lead on the sensor last year, but that was because I accidently cut the original when I changed engines from an O.S.46 to a West 50.After opening the sensor case I heatshrinked it back together because the case didn't seem to close together with any authority, but before I opened it it had been fine.

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11-03-2004 02:05 PM  13 years agoPost 5
Garry-Boy

rrKey Veteran

Moscow, Russia

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Same with me, I'm using it for already two years without any troubles, but some of my friends, got lot's of problem with those sensors. It seems that the original sensor is kind of lottery you could buy a good one and it would serve you for ages, or you could get a bad one, and in that case prepare for troubles. That is actually I was wondering could I substitute the original sensor on GV-1 with optical.

Garry.

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11-03-2004 09:34 PM  13 years agoPost 6
helibird

rrKey Veteran

St. George, UT

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Which sensor is easier to install? I'd prefer not to have to balance my fan and all that. Also where's the best place to buy?

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11-03-2004 10:39 PM  13 years agoPost 7
Heli-Driver

rrElite Veteran

Arlington, TX

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Opticals work fine and I've used them from 30's through 90s. you can read more about them at helidriver.com.



Raymond

Predator Gasser SE/231 X 2
Century Helicopters

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11-04-2004 08:30 AM  13 years agoPost 8
nivlek

rrProfessor

Norfolk England

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Wingtip,
The optical sensor incorporates an infra red led and a infra red sensor,
so it provides its own light source.In fact the less ambient light the better the sensor will work.

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11-10-2004 03:17 AM  13 years agoPost 9
helitroll

rrVeteran

Southlake, TX

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contrast
Will the optical work on a silver surface with a black line or does it have to be a black surface with a silver/white line?

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11-10-2004 03:35 AM  13 years agoPost 10
helitroll

rrVeteran

Southlake, TX

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reflective
My real question is related to the stripe. Most of the setups I have seen are black fans with a silver strip. I am wanting to put a black stripe on a silver clutch bell. 98% will be silver and 2% will be black. Am I confusing the issue. Mark H.

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11-10-2004 08:14 AM  13 years agoPost 11
nivlek

rrProfessor

Norfolk England

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As long as your strip is wider than the sensor it shouldn't make any difference.You can use a black strip on silver or vice versa, the govenor is just looking for a pulse.

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11-10-2004 08:35 AM  13 years agoPost 12
rcheliflyer

rrKey Veteran

calif., usa

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I have an optical on my Rap and once in a rare while it will surge
when inverted, maybe only 2 times in nearly 200 flights.
Also It needs a shiny silver surface, chrome monocoat trim sheet
works great.
I updated my fan to a metal TT fan which has a matte silver finish, I painted it black and left a matte silver strip, it would not read right and
my GV1 would not engage, I covered it with the chrome trim about 1/2 " wide and It worked.

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11-10-2004 11:22 AM  13 years agoPost 13
HeliPhil

rrApprentice

Brentwood, Essex, UK

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I had a situation last week when late in the afternoon when the sun was low in the sky the engine would surge when the heli was at a particular angle to the sun. It was completely repeatable. I will now add a small shield to the sensor setup to stop it happening. It's the first and only time its happened as I usually fly in the morning (and since I'm in england the sun don't shine that much anyway - groan)

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11-11-2004 12:30 PM  13 years agoPost 14
T.C.

rrKey Veteran

Nottingham. England.

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What parts do I need to make an optical sensor & can I get the parts from Maplins ??

Tony

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11-12-2004 04:11 PM  13 years agoPost 15
deadfish

rrApprentice

Taipei, Taiwan

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Please go to http://www.helidriver.com/ for further info.

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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › GV-1 magnet or optical?
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