Pre-flight – Great Planes PT-E Trainer Electric Kit - GPMA0110 User Manual

Page 37

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FINAL HOOKUPS AND CHECKS TEST THE MOTOR OPERATION

D 1. Make sure the control surfaces move in the proper

direction as illustrated in the following sketch

T H R E E - C H A N N E L S E T U P

TRANSMITTER

S T I C K M O V E M E N T S

CONTROL SURFACE

MOVEMENTS

ELEVATOR MOVES UP

RUDDER MOVES RIGHT

ELECTRIC MOTOR SWITCH OH

D 2. Adjust your pushrod hookups as necessary to pro-

vide the following control surface movements'".

Elevator = 3/16" up, 3/16" down

Rudder = 5/16" Lt., 5/16" Rt.

*NOTE: These control surface "throws" are approximate
and provide a good starting point for the first flights with
your PT-Electnc You may wish to adjust the throws
slightly to provide the smoothness or quickness that you
prefer.

D 3 "Break-in" your electric motor by running it with-

out the propeller for at least F2 hour This will
insure that the motor will provide full power for your
first flight, and will extend the overall life of the
motor.

D 4. With the prop hub adaptor attached to the motor

shaft, slide the propeller onto the shaft of the prop
hub adaptor NOTE: Do not install the prop back-
wards' The rounded side of the prop blades must be
facing forward Insert the 6-32 socket head cap
screw
through the aluminum spinner, and tighten

the cap screw securely with the alien wrench.

PRE-FLIGHT

CHARGE THE BATTERIES

Follow the radio battery charging procedures in

your radio instruction manual You should always charge
your transmitter and receiver batteries the night before
you go flying, and at other times as recommended by the

radio manufacturer Read the battery charging procedure
in the Appendix at the end of this book to familiarize

yourself with the procedure for charging the motor bat-
tery.

D 1. Make sure the toggle switch is in the "off" position.

D 2. Make sure no one in the area is operating a radio

on your frequency, then turn on the transmitter and
receiver (in that order), and pull the throttle stick
back Check to make sure that the micro switch is
in the "off position Turn off the receiver and trans-
mitter (in that order).

D 3. Open the hatch, insert the charged 6 or 7 cell

motor battery, and plug the battery connectors to-
gether. Close the hatch and lock it with the hatch
tab.

D 4. Position yourself behind the wing, and grasp the

airplane firmly.

D 5. Turn on the transmitter and receiver (in that

order).

D 6. Make sure that all bystanders are behind the

airplane

D 7. Make sure the transmitter throttle stick is pulled

back to the "off" position.

D 8. Switch the toggle switch to the "on" position. The

motor should not run at this time.

D 9 Advance the throttle stick forward to the "on" (or

full throttle) position This should cause the motor
to start, spinning the propeller at a high RPM.
The wind generated by the rotating propeller should

be blowing toward the rear, and the airplane should
be pulling forward.

D 10. Continue running the motor and notice how the

power continues to be nearly constant for about 4-1/2
to 5-1/2 minutes, after which there is a definite
noticeable drop in power The power then drops
rapidly until it reaches a point where there is very
little thrust pulling the airplane forward. At this
point the battery is almost fully discharged.

D 11 Pull the transmitter stick to the "off" position,

and turn off the toggle switch.

D 12. Turn off the receiver and the transmitter (in that

order).

D 13. Remove the battery from the airplane and allow

it to cool before recharging Also leave the hatch
removed for several minutes to allow the interior of

the airplane to cool

NOTE: Follow the above procedure for operation of
the system each time you fly!

FIND A SAFE PLACE TO FLY

The best place to fly your R/C model is an AMA

(Academy of Model Aeronautics) chartered club field Ask
your hobby shop dealer if there is such a club a n d ]oin
Club fields are set up for R/C flying which u s u a l l y makes

your outing more enjoyable. The AMA can also tell you

37

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