Graupner mx20 pitchcurve problem - RC Groups
Thread Tools
May 07, 2012, 05:02 AM
Registered User

Graupner mx20 pitchcurve problem

Hello everyone,

Since a few weeks I own an graupner mx20 radio with GR-12. I want it to setup for a protos 500 with beastx, but I can't get the servo's to work properly. They don't move when I power everything up.

I just created a new model, some phases and throttle curves. The pitch curve is just liniar and swash type is 1 servo 90*. What do I do wrong?

When I first power up the heli and after that my Tx the servo's do move, but pitch still doesn't which is kinda strange.

I can't find anything for this transmitter, and graupner doesn't answers any of my questions. Can someone advise me on this one?

Sign up now
to remove ads between posts
May 07, 2012, 04:17 PM
Registered User
cbflys's Avatar
Pitch is output on Channel 1, do you see channel 1 moving on the servo display screen?
May 09, 2012, 02:18 PM
Registered User
That was it. Speedcontroller cable and pitch needed to be switched.

I still get the problem that phoenix is acting strange when the graupner is connected. Pitch stick stays at full throttle, swashplate servo's are moving properly. Anyone?
May 09, 2012, 02:29 PM
Registered User
cbflys's Avatar
Make sure that you have 1-servo swash type selected. Also, on the flight sim, make sure that for the controller you have throttle on channel 6 and collective on channel 1.
May 10, 2012, 01:26 PM
Registered User
That was allmost about it. I needed to assign both throttle and pitch to channel 1. Thanks for your input!!

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Graupner MX-20 Failsafe problem zaguruinzasky Radios 5 Apr 11, 2015 04:43 AM
Help! Graupner MX-16 problem esbakke Radios 3 Oct 27, 2012 02:30 PM
Discussion scherrer compatible with 12ch on MX20 or mc32 ? rainer_v FPV Talk 1 Apr 16, 2012 01:34 PM
Discussion QuadCopter 650 ARF & Graupner RC problem. zavataafnan Multirotor Drone Talk 12 Dec 03, 2011 04:10 PM
graupner gearbox pinion problem zagiking Parkflyers 1 Apr 26, 2002 12:44 PM