Great Planes Spitfire 40 Kit - GPMA0179 - Manual (Page 16)

RETRACTS
❏
7R. Cut openings in the top of both ribs W1 to fit the retract
servo. If necessary, trim the bottom portion of the ribs as well to
fit the servo.
❏
8R. Mount your retract servo and both retract bodies.
❏
9R. Find a servo horn with two holes which are 1-1/16" to
1-1/8" from each other. Mount Screw-Lock Pushrod Connectors
(GPMQ3870, not included) as shown.
Hint: The standard 6-
arm Futaba servo horn works well – just trim off the four arms
that are not needed.
Note: This horn should be installed for all
steps.
❏
10R. Cut 5/8" of the threads off the end of two 12" threaded-
on-one-end pushrods. Attach clevises (GPMQ3772, not
included). Bend to the shape shown in the photo.
Note: The pushrod wire shown in the following four steps is not
the same as will be used in the model. It should be bent as
shown in the photo above. Follow the instructions and use
these photos for reference only.
❏
11R. Use a straightedge to mark a line from the center of the
servo arm to the control link on the right retract on W2.
Repeat for the left retract.
❏
12R. On the right wing half, mark on W2 where a line from
the aft screw-lock to the control link on the right retract
intersects W2.
❏
13R. On the left wing half, mark on W2 where a line from the
forward screw-lock to the control link on the left retract
intersects W2.
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