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HelicopterRadio - Servo - Gyro - Gov - Batt › GV-1 sensor broke what to buy?
05-02-2004 04:20 PM  13 years agoPost 1
gquiring

rrNovice

Matawan, NJ

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My sensor broke on a GV-1 with only 1 season of flying. The replacement is about $40. I see some talk on the optical sensor for $30. Would the optical sensor make a better choice?

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05-02-2004 04:35 PM  13 years agoPost 2
Lars Blaabjerg

rrApprentice

Aarhus, Denmark

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It may be repairable. I've repaired my sensor twice. First time it fell apart. I just filled it with epoxy and put it back together. Recently the plastic broke just above the screws. Glued it with some ca and a couple of small strips of fiberglass cloth. Still works fine.

----

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05-03-2004 09:49 AM  13 years agoPost 3
cjw

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UK - Cheshire

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Same here, had the black plastic break when my fan slipped down on my Caliber. I just epoxyed the sensor back on to the metal mounting bracket and it worked fine.

Recently I moved the sensor to my new Raptor 50. Removed the epoxy simply by heating the sensor in a cup of boiling water from the kettle. Rip tied the sensor back to the bracket (as it needed to be in a different position) and covered with epoxy again. All working fine!

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05-03-2004 11:29 AM  13 years agoPost 4
rickc

rrElite Veteran

Creve Coeur IL. (Peoria Area)

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My sensor broke on a GV-1 with only 1 season of flying.
You can get a replacement housing for the sensor for around 5 bucks from hobby services, do a search on RR and you will find the part numbers. Also no need to have it so close to the fan that it risks contact.

Rick

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05-03-2004 11:47 AM  13 years agoPost 5
capebob

rrVeteran

Cape Coral, FL

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As my GV-1 sensors have broken I've replaced them with opticals. The optical sensors have worked well, are less critical as far as placement goes, and don't break.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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05-03-2004 12:10 PM  13 years agoPost 6
cjw

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UK - Cheshire

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rickc,

It actually wasn't that close to the fan. The bolts holding the fan in place sheared off and the fan slipped down the shaft, just clipping the top of the sensor housing.

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05-03-2004 12:12 PM  13 years agoPost 7
cjw

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UK - Cheshire

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capebob,

Do you have any links to get the optical sensors. I haven't been able to find them in the UK - admittedly I haven't looked very hard as I haven't needed them, but would be useful to know.

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05-03-2004 12:18 PM  13 years agoPost 8
capebob

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Cape Coral, FL

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cjw,

PM hotwings on this site. He can hook you up.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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05-03-2004 12:19 PM  13 years agoPost 9
cjw

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UK - Cheshire

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Many thanks... I'll do that

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05-03-2004 12:29 PM  13 years agoPost 10
Bushy

rrVeteran

Tucson, AZ

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For the do it yourself type:

Mouser.com has the Fairchild optical sensor.
Mouser part #512-QRB1134
$2.43 USD


Hook up schematic at:
http://www.helidriver.com/Futaba/OS_Schematic.jpg

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05-03-2004 12:35 PM  13 years agoPost 11
cjw

rrVeteran

UK - Cheshire

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Thanks as well Bushy.

You can see where I mounted the sensor, before covering it with epoxy here http://www.cjwoods.com/Caliber_30_tips.htm

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05-03-2004 12:38 PM  13 years agoPost 12
Bushy

rrVeteran

Tucson, AZ

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Changed the part # in the post to:
512-QRB1134

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05-03-2004 04:53 PM  13 years agoPost 13
staraero1

rrKey Veteran

Atlantic City, New Jersey

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If you can't repair it just purchase a complete Throttle Jockey Pro governor system, for about 80. bucks total. The sensor supplied with the T.J. won't break, and the T.J. governor itself controls rotor RPM much better as well.

You are already about half way there in cost, if you find the need to buy another sensor for the GV-1. Additionally, you can almost set your watch on the new one breaking the plastic case again, at some point down the road.

Staraero1

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05-03-2004 05:38 PM  13 years agoPost 14
johnboyrrVeteran - South Lincolnshire nr Peterborough UK - My Posts: All  Forum  Topic

a pic for what it's worth

i never fit a gv sensor without doing the twine and epoxy.....otherwise they don't stand many prangs before they break

¤º°`°º¤ø,¸¸,ø¤º°°º¤ø,¸¸,ø¤º°`°º¤

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05-04-2004 02:18 AM  13 years agoPost 15
captain1

rrApprentice

Sydney - Australia

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How about rather making an optical sensor yourself.

Very simple to do and you will have it done for under $10.

Look here:

http://www.fyre-fraust.ca/digitalfu...r/GV1sensor.htm

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05-04-2004 02:20 AM  13 years agoPost 16
gquiring

rrNovice

Matawan, NJ

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I pulled out my engine and reviewed the sensor and housing. There is no visable damage to either but the sensor does not register more than 3% when held directly against the magnet.

Has anyone seen the electronics going bad in the sensor?

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05-04-2004 07:52 AM  13 years agoPost 17
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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Lookie here......

http://www.helidriver.com/

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05-04-2004 03:35 PM  13 years agoPost 18
drsuessmn

rrVeteran

Ellendale Minnesota USA

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mine failed out of the box just read 97 % all of the time stupid people at futaba have yet to contact me so here I am without sensor and brand new govvie

[align=center][url=http://smmac.com/][color=deeppink]Just What the Dr ordered[/color][/url][/align]

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05-04-2004 05:20 PM  13 years agoPost 19
mrNoodles

rrProfessor

Borlänge, Sweden

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Putting shrink tube around it when first mounting it might help also.
But I guess it´s to late your case

/Fredrik
'Hm now I just have to find out where to connect the GV1 sensor to the Jazz80 ESC.

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HelicopterRadio - Servo - Gyro - Gov - Batt › GV-1 sensor broke what to buy?
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