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Crash2599 · 10-17-2017, 04:27 AM

Any ideas as to why a tail servo won’t always return to centre? Just running through a 450 3D I bought used. I saw in the blade videosomething to do about disabling the gyro gain while working on it. Maybe related to that?

Mercuriell · 10-17-2017, 05:35 AM

Most gyros now work in heading hold mode, the tail servo is offset until the original position is reached. Rate mode, on the other hand, offsets the tail servo till movement is stopped, then returns to centre!

Smoggie · 10-17-2017, 06:46 AM

yes, as John says, this is 100% normal for a heading hold gyro.

learnedthehardway · 10-17-2017, 07:21 AM

Move the heli side to side by hand then you should see the tail servo move. It won't correct until it sees movement

Crash2599 · 10-17-2017, 08:31 AM

Ok, I suspected it had something to do with the gyro but wasn't sure!

So the proper way to centre (90 deg.) the servo is to disable the gain on the TX, correct?

Crash2599 · 10-17-2017, 08:13 PM

Ok thanks for clarifying that!

So the proper way to adjust the tail servo and linkage is by disabling the gyro at the TX ?

10-17-2017, 04:27 AM	#1 (permalink)
Crash2599 Registered Users Join Date: Oct 2017	TAil servo not returning to center? Any ideas as to why a tail servo won’t always return to centre? Just running through a 450 3D I bought used. I saw in the blade videosomething to do about disabling the gyro gain while working on it. Maybe related to that?

10-17-2017, 05:35 AM	#2 (permalink)
Mercuriell HF Support Join Date: Sep 2006	Most gyros now work in heading hold mode, the tail servo is offset until the original position is reached. Rate mode, on the other hand, offsets the tail servo till movement is stopped, then returns to centre! __________________ John

10-17-2017, 06:46 AM	#3 (permalink)
Smoggie Registered Users Join Date: Nov 2013 Location: Aberdeen, UK	yes, as John says, this is 100% normal for a heading hold gyro. __________________ Gob 700 BT 'T' \| SoXos Strike 7.1 \| Henseleit TDR, TDF, TDSF & TDR2 \| OMP M1&M2 \| UK stockist for OMPHobby M1/M2 ScotiaRC.co.uk

10-17-2017, 07:21 AM	#4 (permalink)
learnedthehardway Registered Users Join Date: Feb 2015	Move the heli side to side by hand then you should see the tail servo move. It won't correct until it sees movement __________________ Mini Protos 6s stretch/XK K110/Trex 450sport v2 fbl/Rochobby Nemesis NXT/RareBear funfighter620mm ~Problem Child~

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10-17-2017, 08:31 AM	#5 (permalink)
Crash2599 Registered Users Thread Starter Join Date: Oct 2017	Ok, I suspected it had something to do with the gyro but wasn't sure! So the proper way to centre (90 deg.) the servo is to disable the gain on the TX, correct?

10-17-2017, 08:13 PM	#6 (permalink)
Crash2599 Registered Users Thread Starter Join Date: Oct 2017	Ok thanks for clarifying that! So the proper way to adjust the tail servo and linkage is by disabling the gyro at the TX ?

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