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HelicopterGasser Model RC HelicoptersOther › acrobat -GV1 AND STATOR GATOR..
01-27-2007 07:32 PM  10 years agoPost 1
dazzaster

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before i start, yes i know this should possibly go into the radio section but i thought it would be better going in the gasser section seen as thats the most likely place to get the best answers,

ive had the acrobat for a couple month and have only had a couple chances to fly due to work comitments, a few week ago i got a GV-1 govenor and orderd and fitted the stator gator. this is the first time i have used a gv-1 (normally use csm revloc) and i assumed the last couple of flight i had the govenor on and working, however had a spare set of hands up the field tachoed the head speed and it was higher than what i had the gov set too, so changed the gear ratio in the gov settings, this didnt alter the speed at all , later someone else who uses the gv-1 turned up and said its not engaging we tried all amnner of setups and switches and still couldnt get it to work,
first of all i ahve the ratio set to 6.72. my actual gears on the acrobat are as follows, 22T on the clutch against a 40t on the other end of the belt on the same shaft as the 40t is a 23 T pinion onto a 85t main gear ( can anyone work that ratio out please)
when the engine starts the govener display the engine rpm of around 500 at idle so i asume the stator gator is working fine.
if anyone can point me to where i maybe going wrong please let me know.
the govenor on off functons are as follows
swpt :this remains of no matter what i do
stsw:this comes on when stick is above idle
swcd: on this one i have a 3 pos switch up is off and the two down positions are the two govenor speed settings (switch C on ff9)
gvof: this remains INH
i have the aux rpm chanel plugged into chanel 7
the other lead is left out as i do not have a spare chanel as ch9 is the eletric starter ch8 is the 4th servo on the ccpm and all other chanels are taken up by gyro and controls.
i know i waffle on but the more details i can give the easier it is for you guys to understand
Many thanks
Darren

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01-27-2007 09:33 PM  10 years agoPost 2
Billme

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MS

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Sounds like you need to reverse the connections where your stator gator hooks up at the coil...
If your ATV's on throttle are not even, and or set to low, this will also keep the Gv1 from working..
Bill

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01-28-2007 06:14 AM  10 years agoPost 3
dazzaster

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but the govenor is reading an rpm of 500 at idle , so the stator gater must be working! or am i wrong?

A.K.A 509

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01-28-2007 07:14 AM  10 years agoPost 4
aspen

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Albuquerque, NM

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Definitely if you have set to low the ATV or END point (depending on TX brand you are using), the GV-1 would not work properly at low ATV or END point setting. Try to make low and high travel even and make then higher than 75% or 80% preferable 100%. But in some cases is very difficult due to the type of control horn use on Gas engine. After that run again the throttle limit setting.

Then even after that, many people with Gas engine wont have lucky making this set up, in this case, you have to go to the Hide Menu on your governor GV-1 and re calibrate the engaging point of your GV-1

There are few thread in here about that menu. Easily that hide menu setting will cure that problem…

YAM

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01-28-2007 07:47 AM  10 years agoPost 5
dazzaster

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Thanks Aspen,
ive been in contact with t.fiddler and he asked what ATV are, and its the first time ive really looked there 32-38 on a ff9 and futaba state it wont kick in if these are below 50% so it looks like a play around with the throttle linkage or is it best to use the secret menu? if so do i bring it down from 70% to 50% , i dont want it to kick in all of a sudden and rip the hell out of the head
Thanks
Darren

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01-28-2007 08:03 AM  10 years agoPost 6
aspen

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Albuquerque, NM

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After you have set up the travel over 50% both side, it’s hard, but not impossible. I have been there few days almost a week, until I found the hide menu here in runryder.

You probably have to go to the hide menu anyway and re-calibrate the option they usually re-set on the GV-1.

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01-28-2007 04:40 PM  10 years agoPost 7
dazzaster

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replied to your pm t.fiddler , i have reved the engine above idle while reading the engine rpm from the govoner and it gets to 1000 then goes to zero. from what ive read on other posts its a case of swaping the conectons where the stator gator conect to the engine? am i right?
Darren

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01-29-2007 02:44 AM  10 years agoPost 8
lewma

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San Diego, CA

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dazzaster

I had the exact same problem on my acrobat and benzin. The problem is that you need to reverse the connections from the stator gator to the engine. Some Zenoah engines have their kill switches wired backwards. So, try swapping the stator gator hookup and i bet your problem will be solved.

mark

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01-29-2007 08:27 AM  10 years agoPost 9
dazzaster

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i have now reversed the wireing and the rpm now reads above 1000 so iasume this has fixed it, untill i get a chance to go to the field to try it out i wont know, will let you all know how i get on
Thanks for the help guys
Darren

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03-15-2007 08:14 PM  10 years agoPost 10
dazzaster

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ok im back with another slight problem with this setup.
i received the little extender tom kingdly sent me but cant fit it to my throttle arm as theres a piece atached to the carb that comes up in the way with a screw and spring atached.
this is not the problem as i do get an atv of around 65-65 .
since setting the gv-1 and stator gator up i keep getting the engine kicking, we thought that it might be a case of adjusting the high end mixture which we tried and didnt work.
today however we got to look at it more we set the helicopter on the ground and started it up. i have the govenor on a switch so pos 1 is gov off
pos 2 is 1200 rpm
pos 3 is 1400 rpm
we noticed that when I flick the govenor on pos 2 the govnor kicks in but rather than the servo moveing to a set position it wags left to right as if its hunting for a position and then centres its self to the correct rpm. ocasionally we noticed that the servo would suddenly flip to full throttle just for a split second as if the sensor was skipping a beat.
we know its not vibration to the servo as we tried slowly increasing the throttle without the goveor to see if the servo would twitch
the goveor is on the side frame of the acrobatic by the tail
and the stator gator black box is positioned on the side frame just forward of the main shaft with the wire from the engine to the sensor going up and over the frame where the engine is.
hope someone can help
Darren

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03-16-2007 08:55 AM  10 years agoPost 11
dazzaster

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Hi tom
its the long boom version so im running 810 blades
any higher rpm and i end up with bent bolts?

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03-16-2007 04:37 PM  10 years agoPost 12
dazzaster

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Tom my gear ratio is 6.72 : 1 this has been confirmed by useing a tacho
, as for the clutch slipping i would of thought that if the clutch slips the engine would spin faster adn the govenor would take throttle of to allow for this not put it upto full.
just to clarify i can be hovering at a constant height and then sudenly the govenor will give the engine a split second of full throttle , thats with no change to controls just hovering on the spot. although i havnt noticed if it does it when a breeze of wind hits it as this affect the amount of work the engine has to do

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03-16-2007 05:44 PM  10 years agoPost 13
Billme

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With the 230 run 9.0...7.5 is to high for the 230 to run, but its perfect for the 260..These suggestion are for the 800 blades...I suggest using the big clutch also with these combination..

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03-16-2007 07:07 PM  10 years agoPost 14
dazzaster

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the engine is a g26 ,
when im running the helicopter up and switch the govenor on with a flick of the switch you can see the servo hunt for its position when i say hunt i mean say for instance the throttle servo needs to be around the centre of its throw to achive the required rpm the servo will travle pass the centre swinging like a pedilium unttill it come to a stop. the same hapens when i flickj the switch again to achieve my second rpm setting it will hunt again before settling down.
this hunting isnt really a problem for me as i think it could be a slow servo for the govenor (jr591) .
the problem is during flight even if im hovering it will randomly rev the engine for that split second causeing me to jump. its as if the sensor is skipping a beat and the govenor then tells the servo to add more throttle , this is totally random it dosent happen every minute or every couple seconds it happens hear and there. but it does make you jump each time it happens.

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03-18-2007 06:29 PM  10 years agoPost 15
dazzaster

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I think i may have found the problem but still not sure untill i test it.
one of the female conections that conect from the engine to the stator gator is loose its not loose that it comes off but im not taken any chances. i have connected it bak up and use a pair of pliers to crimp the conections tighter together.

could this really be the cause or should i be looking at something else.
darren

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03-18-2007 08:34 PM  10 years agoPost 16
dazzaster

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will do im hopeing to test it on tuesday but the thew wheather hear is a bit windy to say the least
Darren

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03-27-2007 07:16 PM  10 years agoPost 17
dazzaster

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tested it with the conections tightened and a bit of solder and just when i thought it had stopped the govenor gave the engine a quick kick. after consulting Turbine Master who is our resident qualified engineer he sugested i richen the engine on the low side a bit so i gave it 1/8th ot a turn counter clockwise and sure enough it worked. the only reason the engine wasnt kicking when i had the govenor off is becuase the engine was at higher revs.
so thanks everyone for there input we eventually got there
Thanks again
Darren

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03-28-2007 08:17 AM  10 years agoPost 18
dazzaster

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yes it is thanks for your help
we asume is what was happening was the engines wasnt getting enough fuel and the power was dropping so the govenor was sensing this and beacuase of the slow servo it was not adjusting the throttle fast enough so the govenor kicked it to full throttle to componsate.
Darren

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