Great Planes Ultra Sport 40 ARF Red - GPMA1005 - Manual (Page 8)

Glue the Wing Joiners
Wing Joiner
5. Draw a centerline on both of the wing joiner pieces.
Trial fit the wing joiners in both wing halves. A snug fit is
desirable. If the joiners do not fit properly, lightly sand the
excess epoxy and uneven surface joints from the joiner
edges and sides. The plywood joiner has a slight angle
on one side, which should face the bottom of the wing.
6. Use 6-minute epoxy to glue the front and rear wing
joiners into the right wing half. Before the epoxy cures,
make sure the joiners are straight and in good contact with
the wing spars. Wipe off any epoxy on the ribs or on the
wing covering using a paper towel and rubbing alcohol.
Top
Wing
Bottom
Landing Gear Assembly
Fixed Gear (Option A)
(Skip Steps 1-11 Option A if retracts are being installed.)
(Continue on page 10.)
Assemble the Fixed Landing Gear
1. Place the landing gear mounting block between the
U-bend on the top portion of the main landing gear strut.
Secure the Mounting Blocks
Join the Wing
2. Using a pen, place marks on the mounting blocks
7. Trial fit the two wing halves together. The wing halves
should seat together without any gaps and the front and
back edges of each wing should lineup with each other.
Completely, cover the wing joiners, spars and center
ribs.with 30-minute epoxy. Slide the two wing halves
together, using masking tape to hold the wing in proper
alignment until the epoxy cures.
using the flat nylon straps as templates. Predrill the screw
holes using a 1/16" drill bit and secure the strut with two
nylon straps and four #2 x 3/8" sheet metal screws.
Final Assembly
3. Use 6-minute epoxy to glue the plywood landing gear
cover plate to the mounting block.
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