Great Planes L-39 EP Ducted Fan RxR - GPMA6002 - Manual (Page 8)

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10. Finish the model by test fi tting the removable drop tanks
and missiles to the underside of the wing. These parts are
attached magnetically and are for display purposes only. Be
sure to remove them prior to fl ight! The included clear canopy
hatch is also recommended for display purposes only.
GET THE MODEL READY TO FLY
Check the Control Directions
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1. Turn on the transmitter and receiver and center the trims.
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2. With the transmitter and receiver still on, check all the
control surfaces to see if they are centered. If necessary,
loosen the knurled thumb screws in the screw-lock pushrod
connectors and adjust the pushrods until the control surfaces
are centered. When satisfi ed, re-tighten the thumb screws
using a fl at head screwdriver.
ELEVATORS MOVE UP RIGHT AILERON MOVES UP
LEFT AILERON MOVES DOWN
FULL THROTTLE
3-CHANNEL RADIO SETUP
(STANDARD MODE 2)
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3. Make certain that the control surfaces and the throttle
respond in the correct direction as shown in the diagram.
If any of the controls respond in the wrong direction, use
the servo reversing in the transmitter to reverse the servos
connected to those controls. Be certain the control surfaces
have remained centered. Adjust if necessary.
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4. If the ESC makes continued low-pitched beeps when
the transmitter is turned on and the throttle stick is in the
idle position, then the throttle channel is reversed in the
transmitter.
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5. The SS-25 brushless ESC is equipped with a safety
feature that prevents the motor from rotating before the ESC
has been armed. To arm the ESC, turn the transmitter on
and move the throttle stick to idle. Plug the battery into the
ESC. Move the throttle stick to full throttle until you hear a
beep. Move the throttle stick back to the idle position and you
will hear two beeps. The ESC is now armed.
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6. The SS-25 brushless ESC is equipped with a “brake”
feature. To toggle the brake on and off, turn the transmitter on
and move the throttle stick to full throttle. Plug the battery into
the ESC. You will hear two quick beeps after a few seconds.
Move the throttle stick to the idle position. Continue with the
arming procedure as described in step 5.
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7. To download the complete SS-25 brushless ESC
manual, visit www.greatplanes.com.