Futaba 9VHP - Manual (Page 25)

•SPLINED HORN
The splined horns allow adjustment of the servo neutral
position at the servo horn.
Neutral position adjustment
a) Angle divisions
1) The splined horn has 25 segments. The amount of
change per segment is; 360 / 25 = 14.4 .
2) The minimum adjustable angle is determined by the
number of arms or number of holes. For four arms,
the minimum adjustable angle is:
b) Effect
To shift the holes center line to the right (clockwise)
relative to baseline A, shift arm 2 to the position of arm
1 and set it to the position closest to baseline A.
(Example) For a four arm horn, the angular shift per
segment is 14.4°. The shift to the right is:
90° - ( 1 4 . 4 x 6 ) =3.6°
To shift by the same angle in the opposite direction, use
the opposite arm number.
For a six arm horn, turn the arm counterclockwise and
set arm 2 to the position of arm 1.
The adjustable angle is 60 - (14.4 x 4) = 2.4°.
Arm 3 shifts 4.8° to the right, arm 6 shifts 2.4° to the
left, and arm 4 shifts 7.2° to the right and left.
The following splined horns are optional.
[51]
HORN A HORN B HORN C HORN D HORN E HORN F HORN G
(FSH6X) (FSH-6S) FSH-6R) (FSH-6W)