Spirit System
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1.2 Govenor
https://www.spirit-system.com/phpBB3/viewtopic.php?f=20&t=700		 Page 1 of 1
Author:  ritchieicu [ Sun 31. May 2015 21:19:33 ]
Post subject:  1.2 Govenor
Updated all three spirits today and put Governor on my mini titan 360. It has a yep ESC, re done the end points, turned yep Govenor off.

I don't know my motor poles so i kept changing it until the requested speed matched the actual speed.

Something strange about the head speed, when i put the gear ratio in of 11.7 (130 t main gear and 13 t pinion. the stated head speed was nothing like the tachometer showed. I kept reducing the ratio until it matched which was 6.8

It works fine and requested/stated/tached head speeds match right through the range.

Not flown it yet, only bench tested

Ritchie
Author:  ZeXx86 [ Sun 31. May 2015 21:34:36 ]
Post subject:  Re: 1.2 Govenor
Make sure that Gear Ratio is configured correctly. Some helicopters have few versions with different main gears/pinions so then it can be swapped easily.
Also some tachometers are unable to measure correctly RPM without blades/on the ground.
Ratio of 6.8 is quite strange for this helicopter.

MiniTitan has 150t main gear (150/13 = 11.5)
Author:  ritchieicu [ Mon 08. Jun 2015 20:34:52 ]
Post subject:  Re: 1.2 Govenor
Thomas you are correct headspead tachs different in the air, flys a dream now

Sent from my Nexus 6 using Tapatalk
Author:  ritchieicu [ Sat 13. Jun 2015 11:11:15 ]
Post subject:  Re: 1.2 Govenor
Thomas

flew the titan at the club yesterday and had it tached with a digital metre and a manual one. the head tachs at Normal 2700 IU1 2900 IU2 3200.

I have my Max head speed in the governor as 3200. I wanted 2400 2600 2800 so i put my throttle curves at 75 81 87. With the motor disengaged i tested it and that's what i got from requested and actual motor speed.
I have tried different pole counts as i cant find my motor specs (OBL29/27-10H) but settled on 4 as this is the only setting that will cause the requested and actual speed to be linear right through the throttle range.

Fly's nice anyway even in high winds :-)
Tempted to leave it and just fly it.

Any idea what I'm doing wrong?

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