Great Planes L-39 EP Ducted Fan ARF - GPMA1869 User Manual
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4. Connect a pushrod wire with Z-bend to each of the
aileron servo arms.
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5. Use the included thumb screw pushrod connectors to
connect the aileron pushrods to the outer holes in the control
horns as shown. Center the ailerons in the neutral position
and tighten the thumb screws against the pushrods.
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6. Glue the aileron pushrod covers over the servo arms.
Be sure that the covers are positioned so that they will not
interfere with the pushrods when the ailerons are defl ected
up and down.
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7. Attach the wing tip tanks to the wing as shown. The
magnets will hold them in place during fl ight.
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8. Connect the included motor lead extensions to the
three wires on the motor. Secure the extensions using tape
(not included).
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9. Test fi t the ducted fan unit into the fuselage channel
by feeding the motor lead extensions through the hole in the
bottom of the channel and aligning the unit with the molded
grooves in the channel. Confi rm that the rotor cone does not
contact any part of the fuselage. If necessary, use a hobby
knife to carefully trim the contacting area away from the fuse.
When satisfi ed, use 30-minute epoxy to glue the ducted fan
unit into the duct channel. Clean up any excess epoxy with
a dry paper towel.