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HelicopterRadio - Servo - Gyro - Gov - Batt › gv-1 magnet installation question
03-29-2005 01:30 AM  13 years agoPost 1
pilotoo

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ohio

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This seems pretty straight foreward but you never know...

Can anyone tell me if it is ok to install only one magnet on the engine fan or do both magnets needs to be istalled so that one is pushing and one is pulling.

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03-29-2005 01:31 AM  13 years agoPost 2
littleman

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Pasadena, Ca

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the fan needs to be balanced that is the bottom line
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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03-29-2005 01:35 AM  13 years agoPost 3
pilotoo

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ohio

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reason I'm asking is because the sceadu evo50 has a indentation for one magnet and my gv-1 is constantly displaying a rpm of 0. The sensor checks out ok and reading the magnet fine. not sure what the problem could be.

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03-29-2005 02:53 AM  13 years agoPost 4
littleman

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Pasadena, Ca

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on the bench it should be 0 jk

that i am aware of it should not need 2. the real question whether it shows 0 or not, is the gov holding?
A.J.

Proud member of Teams Castle, MSH USA, Futaba, Scorpion, & Nick Maxwell Products

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03-29-2005 02:19 PM  13 years agoPost 5
pilotoo

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ohio

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Unfortuanatly the gov is not holding and the sensor is working properly with a min reading of 1-2% and a max of 97%. Will the rpm only be displayed when the SWCD is on?

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03-29-2005 06:07 PM  13 years agoPost 6
frankg11

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Bellevue, WA

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nevermind...

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03-29-2005 06:44 PM  13 years agoPost 7
Jyrki

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Loimaa, Finland

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The magnet is so small, it does not need counter balance magnet. Your sensor should be fine if it gives the correct % readings.

Did you notice, GV1 will not start keeping untill you advance throttle to a certain level. My first throttle curve for testing was so shy that GV1 didnt connect at all. Not even at full throttle stick.

If you want to demo and play with the governor, install the spare magnet to a dremel tool or any other conrollable electric motor. Put the sensor close to it and examine how the servo arm behaves with varying motor speed. To me that was a good lesson. I noticed GV1 recovers terribly slow from "hold idle" to governing state so that it would be impossible to practise auto rotation by switching from hold back to governor.

about display manual page 33:
------------------------------------------------------------------------------------------
This function displays the engine speed or rotor speed.
When the governor is on, "rpm" is highlighted and flashed. When the speed comes within 2% of the set speed, "rpm" lights steadily. When the speed reaches approximately +1% of the set speed, the display changes to "rpL" which indicates the locked state.

CAUTION When checking the speed, be sure not to get too close to the helicopter
------------------------------------------------------------------------------------------

Humm, isnt it obvious not to put your nose there!? Well... read about those horror stories ;p

Personally I have never seen that display reading. Anyway you must have noticed it's not the default display either.(correction later: yes, it is actually default reading sorry, it can be seen during idle. i just have the unit wrapped inside canopy) I just dial the demanded rpm and off she goes =) Better to use the display for battery reading.

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HelicopterRadio - Servo - Gyro - Gov - Batt › gv-1 magnet installation question
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