Futaba 8SSAP - Manual (Page 25)

ADJUSTMENTS AND FLIGHT TECHNIQUES
•USING ATL (ADJUSTABLE THROTTLE LIMIT)
HIGH SLOW
The Throttle Trim Lever 19 affects the servo po-
sition only when the throttle control lever is in the
LOW (IDLE) position. HIGH throttle position
remains unchanged. Adjustment of the throttle
linkage is therefore very convenient.
1 Use a servo horn that allows slightly more
throw than needed.
2 Set the maximum opening at HIGH throttle
using Memory ATV (Page 17).
3 Use Memory ATV to set the extreme LOW
position to prevent servo binding when the
throttle barrel closes against the idle stop
screw.
4 With the engine running, use ATL Throttle
Trim Lever 19 to set the optimum idle
speed.
Fig. 34
FS FUNCTION/HOLD FUNCTION
Fail Safe (FS) is a function which moves the servo
of each channel to a position preset (at the trans-
mitter) when an erroneous signal or continuous
strong noise is received for about 1 second or
longer. When the proper signal is lost or strong
interference received, the airborne system will
operate in the HOLD mode for about 1 second
before switching to the FS mode. When a normal
signal is received again for about 1 second, FS is
released and normal control resumes.
The HOLD functionstops all servos selected (by
button [47] at the position just before noise or
interference was received. When a normal signal is
resumed, HOLD is released.
A combination of FS and HOLD functions can be
selected on each channel at the modeler's discre-
tion.
FS, HOLD, and SERVO TEST functions are oper-
ated using three switches on the trimmer panel.
A. ATV/FS Buttons [46] and [47]
B. Channel Select Switch [48]
C. Function Select Switch [49]
48 Channel select switch
23
Fig. 36
Fig. 35
49 Function select switch
Fig. 37