Aircraft with flaps and spoilers(airbrake), Flap trim function – Futaba 8SGAP User Manual

Page 33

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•AIRCRAFT WITH FLAPS AND SPOILERS(AIRBRAKE)

Connect the Flap servo to CH6 and the Spoiler

servo to CH7 on the Receiver. Set Switch [32]
to ON.

Fig. 62

Set Control Switch 10 to ON and adjust the
flaps as shown in Fig. 62 with Trimmer 2 0 .
Adjust the spoiler servo travel with Memory
ATV Trimmers [46] and [47]. (See Page 17)
When used in this manner, flaps and spoilers
will be deployed simultaneously to the pre-set
positions when Switch 10 is set to ON. This
acts as an airbrake. NOTE: In this mode, the
Spoiler Knob 7 will be inoperative and its
function transfered to Switch 10 . Alternative-
ly, Switch 32 can be set to CH7 OFF and Knob

7 used for

spoiler control.

Elevator Trimmer 19 can be adjusted if neces-

sary so that the aircraft maintains level flight
with the airbrake deployed.

•FLAP TRIM FUNCTION

FLAP TRIM

• Flap Switch 18 on the trimmer panel can be set

to TRIM position to provide a finer adjustment
if desired. (This may not be possible however, if

wider angles are needed for other flap func-
tions.)

Knob 6 throw selector. In the
NORM position, wide throw is

selected and in the TRIM position,
narrow throw is selected.

Flap Neutral can be adjusted
during flight using the CH6
Flap Knob 6 .

•This is helpful in making

pitch axis trim adjustments for knife
edge and vertical maneuvers.

•This function can be used whether

Mixing Switches 10 and 12 are ON

or OFF.

AUTOMATIC AIR BRAKING (THROTTLE STICK OPERATION)

•This feature permits automatic deployment of

the airbrake (flaps and elevator or flaps, spoilers,
and elevator) as the throttle stick is lowered.

SLOW

Fig. 66

When the throttle is again moved to HIGH, the
airbrakes are retracted automatically. Operation

in this manner is very efficient as it allows the
use of the airbrake function while leaving the

pilot free to concentrate on the primary con-
trols.

Set Switch [32] to INHIB and Switch [33] to
ACT. Monitor Lamp B comes on.
Set Control Switch 1 1 to ON. Lamp B blinks.
Trimmer 8 is used to set the throttle stick
position at which the airbrake is deployed.
Deployment at one or two stops from the maxi-
mum Slow position is usually the most suitable.
The Auto Airbrake function can be turned ON
and OFF in flight by using Control Switch II .

• The Automatic Air Brake Function is very useful

for slowing the aircraft during maneuvers and
landing

approaches. When

executing a "go

around" for a missed approach, the airbrake will
be immediately released as the throttle is moved
to HIGH.

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