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Engine idle management: IDLE-DOWN and THR-CUT : functions which work with the digital THROTTLE TRIM to provide
a simple, consistent means of engine operation. No more fussing with getting trim in just the right spot for landings or
IDLE-DOWN ( ACRO only): lowers the engine idle for: sitting on the runway prior to take off, stalls and spins, and landings.
This may be assigned to any switch/position. Some modelers accidentally assign IDLE-DOWN to one side of a switch
and THR-CUT
center and down. This works well with THR-CUT also on SWITCH C
center for slower maneuvers/landing, and down to cut the engine. If you assign IDLE-DOWN or THR-CUT
loaded TRAINER SWITCH F (8JA) or H
deadstick for your student.
GOAL of EXAMPLE:
Decrease the throttle setting to idle
with the flip of a switch for spins and
landings.
Where next?
THROTTLE-NEEDLE (p. 62) and THROTTLE DELAY (p. 63).
Important note: The IDLE-DOWN function is not normally used when starting the
engine, and its accidental operation may keep your engine from starting. The 8J
warns that IDLE-DOWN is on when the transmitter is turned on. Be sure to turn off
second simultaneously.
STEPS:
Open IDLE-DOWN function.
Activate the function.
With THROTTLE STICK at idle, adjust
the rate until engine idles as desired.*
Optional: change switch assignment.
Choose desired switch and position.
Close.
THR-CUT : see p. 38.
THROTTLE STICK to idle. Adjust the IDLE-DOWN
IDLE-DOWN is set to SWITCH C
INPUTS:
for 1 second.
to IDLE-DOWN .
to MIX .
THROTTLE STICK.
to RATE .
as desired.
to SW .
to POSI .
37
to OFF .
until engine idles
to desired SWITCH.
to desired position.
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