Great Planes PT-19 EP ARF - GPMA1149 - Manual (Page 17)

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2. Connect the aileron servo lead to the receiver. If you
are using a 2.4GHz radio, arrange your receiver’s antennas
as directed by the radio manufacturer.
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3. Trim the bottom of the cowl open so that the opening is
1-3/4" [44mm] wide and 1-1/2" [38mm] long as shown.
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4. Fit the hatch to the fuselage. Slide the cowl in place.
Center the cowl so that the motor opening is centered with
the motor case. Adjust the cowl fore and aft so that it clears
the motor and allows the prop adapter to protrude forward
of the cowl. Tape the cowl in this position with four pieces of
masking tape.
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5. Using a 1/16" [1.6mm] drill bit, drill two holes per side
of the cowl that are 1/2" [12.7mm] forward of the rear edge of
the cowl. Install the cowl using four 2mm x 7mm sheet metal
screws and four 2mm fl at washers.
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6. Balance a propeller. For this motor, we recommend
using the 10x4.5 Power Flow ™ propeller (GPMQ6660). Install
the propeller, prop washer, and prop nut. Tighten the prop
nut securely. Check to see that the propeller rotates freely.
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7. Match the landing gear pant halves together. Set them
apart or label each part with a felt-tipped pen on the inside.