Great Planes Ultra Sport 40 Plus Kit - GPMA0390 - Manual (Page 29)

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26. Locate the two die-cut 1/8" [3.2mm] lite-ply formers
F1-A. Glue them together with epoxy. Wipe away the excess
epoxy with a paper towel dampened with alcohol. Sand the
edges smooth after the glue has cured.
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27. Glue F1-A at the top front of the fuselage into the
slots in F1. Use 6-minute epoxy. Make sure that F1-A is flush
with the firewall (F1). After the glue has cured, sand the face
of the firewall (F1) smooth.
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28. Locate and cut out the engine mount template on
page 57 of this manual. Use spray adhesive on the back of
the template to glue it to the firewall (F1). Use a 5/32" [4mm]
drill bit to drill the engine mount bolt holes in the firewall
(F1). Use a 3/16" [4.8mm] drill bit for the outer pushrods.
Note that one of the pushrods is for the throttle and the other
one is for the steering if you are using a tricycle gear setup.
Also, use a high speed rotary tool to drill the large hole for
the fuel tubing. Note: Depending on the type and brand of
engine you use, you may have to relocate the throttle
pushrod. To do so, fit your engine to the engine mount. Once
the engine mount is installed, determine where the throttle
pushrod should be.
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29. Insert a long 3/16" [4.8mm] drill bit into the throttle
pushrod hole in the firewall (F1). Using the plans as a guide,
align the drill bit to make a hole in former F2 so that the
throttle pushrod has a straight path to the throttle servo arm.
Insert a leftover piece of plastic outer pushrod into the holes
as shown. Mark and sand where the outer pushrod meets
with the fuselage formers. Glue the outer pushrod in place
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