Futaba 8SSHP - Manual (Page 15)

37 Back cover
To operate the trimmers and switches on the trimmer
panel [38] , remove this cover as shown in Fig. 28.
Remove the back cover by pulling stoppers in
the direction of arrows.
Fig. 28
Fig. 31
2. LINEAR-VTR switch
This switch switches the travel linearity
of the aileron servo when the aileron
dual rate switch [14] is in the OFF posi-
tion.
•When this switch is set to the LINE-
AR position, servo tracking is directly
proportional to the deflection of the
transmitter stick as shown by curve B
of Fig. 30.
•When this switch is set to the VTR
(Variable Trace Ratio) position, the
maximum servo throw is the same as
LINEAR shown in Fig. 32. However,
servo tracking is the same as the dual
rate switch ON up to about 80% of the
total travel. Servo tracking then in-
creases abruptly up to the same throw
as dual rate OFF. This tracking method
resembles exponential operation and is
easy to use.
38 Trimmer panel
Switch and adjust the trimmers and switches on this
panel with the small flat blade screwdriver supplied.
A Ailerons
Fig. 32 shows the servo tracking operation when
dual rate switch is OFF and when switch is set
to the VTR position.
1. Ailerons dual rate trimmer
This trimmer sets the aileron deflection
angle when the aileron dual rate switch
[14] is set to the ON position.
The deflection angle is adjustable from
40% to 100% of the total travel. When
the dual rate switch is set to ON, the
servo throw can be set to an arbitrary
angle smaller than that when the dual
rate switch is OFF (normal) as shown
in Fig. 30. Use the throw match-
ed to the helicopter and maneuvers to
be performed.
Dual rate switch OFF
(Switch 2 in LINEAR position)
When the dual rate switch
is ON, the servo throw can
be adjusted (within this
range) with the dual rate
trimmer, FIG 30
Servo tracking can be set
within this range with the
dual rate trimmer.
When the dual rate switch is
set to ON, operation is the
same as dual rate ON at
LINEAR.
Fig. 32
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