Page 1 of 2

[SOLVED] Autorotation bailout spoolup too fast

Posted: Sat 16. Jul 2016 20:17:42
by Romis
I have a HW 100A V3 with red Spirit, firmware 2.0.0., FBL governor enabled. When I activate bailout during autorotation, motor kicks heli really hard - too fast for my taste (not good for TT gears on my TRex 500). How could I make it a little bit slower? Any settings change?

Re: Autorotation bailout spoolup too fast

Posted: Sun 17. Jul 2016 14:42:15
by Adrian
In gov setting, there is the parameter spoolup rate, use a slower setting there.
Bailout is aprox 1/3 of normal spoolup.

Re: Autorotation bailout spoolup too fast

Posted: Sun 17. Jul 2016 18:48:22
by btheli
You may also need to reduce your lower throttle endpoint. You can test with the blades off.

Sent from my phone using Tapatalk

Re: Autorotation bailout spoolup too fast

Posted: Sun 17. Jul 2016 20:16:13
by Romis
I`m already on slow spoolup in governor menu. Where must I reduce lower throttle endpoint?

Re: Autorotation bailout spoolup too fast

Posted: Sun 17. Jul 2016 20:53:33
by ZeXx86
Increasing Max. Head Speed value will help with the problem.
You only have to decrease TC in your transmitter to make Requested RPM same again.

Re: Autorotation bailout spoolup too fast

Posted: Mon 18. Jul 2016 8:01:13
by Romis
As per Mr.Mel headspeed calculator:
(calculated for 100% throttle curve)
Hover RPM at beginning of flight: 3377
Hover RPM at middle of flight: 3110
Hover RPM at end of flight: 3002

Now I have 3000 RPM Max Head Speed in the governor menu, how much shall I add to this number?
I do not want to go higher than 2700 RPM in flight.

Re: Autorotation bailout spoolup too fast

Posted: Mon 18. Jul 2016 8:33:41
by jgiannakas
Use 3377 as max HS and use an 80% throttle curve.

Re: Autorotation bailout spoolup too fast

Posted: Mon 18. Jul 2016 8:56:48
by Romis
Shall I leave slow spoolup or change to very slow?
And what Hz should I run with HW 100A V3, now I`m on 60 Hz in governor menu settings.

Re: Autorotation bailout spoolup too fast

Posted: Mon 18. Jul 2016 20:01:34
by Adrian
Tomas tested 200Hz with no problems as he said. See below.
http://www.spirit-system.com/phpBB3/vie ... 122#p12122

Just out of interest, which mode do you use? Fix wing or heli gov off?
I'll get my HW 100A v3 in 3 weeks to test all the settings and for sure I use bailout from spirit to share here.

Re: Autorotation bailout spoolup too fast

Posted: Tue 19. Jul 2016 7:24:55
by Romis
Currently I use heli gov off, but going to try fixed wing.