Kaz the Minotaur

Does the Ace DS1015 servo use Futaba or JR compatable horns?

A.T.

Futaba, Ace, Supertec & Bluebird all share 25 splines but shaft diameter does differ.
Accordingly, the only servo horns that fit Ace servos are:
ACE
SUPERTEC
BLUEBIRD
FUTABA (with provisio that it is a loose fit,)
Futaba splines are NOT the same as Ace The ace splines are slightly smaller which allows a little side to side play.
see also
Servo - Horn arm Spline Count and Inter Brand Compatibility
Regards
Alan T.
Alan's Hobby, Model & RC FAQ Web Links