Question on flybarless pitch

[pjbrazendale]

Hi,

I have just rebuilt my 450X after a rather heavy crash, replaced the DS76 plastic geared servos with the HS65MG's and she is looking very good. Had to reverse servo direction and cyclic response on the AR7200BX but all is good now. My only question before I do a first flight is how do I check pitch on a flybarless heli? All I have done is replace the servos I haven't altered ball link lengths and I have levelled the swash plate out.

Any help would be appreciated

Cheers

[CW.]

You can use a normal pitch gauge you just need to use an old flybar or similar held against the head button (assuming the head button is square to the main shaft)
It will need adjusting if you've changed the servos, make sure they are centred and arms at 90* then get 0* pitch at mid stick (with a linear pitch curve) and go from there.


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[Mark_T]

I think you have also gone from a digital servo to analogue, may need to change settings before you destroy the new servos, I'm not familiar with the BeastX though, so take advice on that point.

[pjbrazendale]

I think you have also gone from a digital servo to analogue, may need to change settings before you destroy the new servos, I'm not familiar with the BeastX though, so take advice on that point.

Yeah cheers for that before I did anything I read the entire manual for the beastx and realised you needed to set the frequency for cyclic servos at no more than 50hz if using analogue servos which I did so don't worry :-) it was originally set at 170hz would of been sad hadn't I realised!