Toronto Electric Model Aviation Club Forum

Toronto Electric Model Aviation Club (TEMAC) => Building / Construction => Topic started by: Wingnutz on June 26, 2013, 04:11:51 PM

Title: RX packs and servo voltages
Post by: Wingnutz on June 26, 2013, 04:11:51 PM
Setting up my F-86 EDF and have run across fluttering rudder(1) and elevator(2) servos. Servos are rated 3-6v and the rx packs I'm planning to use are putting out more than 6v under load. Is this causing the flutter?
Title: Re: RX packs and servo voltages
Post by: Ededge2002 on June 26, 2013, 05:29:08 PM
Could you try them individual powered with an esc?
Title: Re: RX packs and servo voltages
Post by: Wingnutz on July 03, 2013, 11:20:25 AM
Replaced the fluttering rudder servo with a new one and that solved the rudder flutter. I think the original servo may have been a victim of hangar damage while building...Involved re- wiring the servo with a new heavier gauge twisted extension which is a fiddly job on this model and took way more time than I'd guessed.

My servos are not HV and are rated 3-6V.
I'm presently using a five cell rx pack which puts put 6-7.5V.
Would it make more sense to use a four cell rx pack which should put out 4.8-6V?
What are the down sides to using a four cell rx pack?...pack will have to supply the radio and five 9g servos.
Thanks in advance for any advice.