Great Planes Sportster Bipe 40 Kit - GPMA0510 - Manual (Page 7)

5. ADDTHE SHEETINGAND FILLER ONTHEOTHER
SIDE OF THE WING PANEL
When the glue is dry, turn the wing panel over, realign
it to the board and glue in the balsa filler on the other side of
the hold down. Sand it to shape. Add the leading edge sheeting,
the trailing edge sheeting and the center section sheeting. Add
the cap strips. This completes the left wing panel for now. Re-
move the panel from the building board when it is dry. Now
build the right wing panel by following steps 1 through
5.
INSTALLING THE WING TIPS
1. GLUE THE WING TIPS TO TOP AND BOTTOM
WING PANELS
Cut off the sheeting and spars even with the tip rib.
Do not cut off the leading edge! Glue the wing tips on both the
top and bottom wingslpanels. The tips should be centered on
the tip rib and the leading edge centerline. The wing tips for
the top wing will have to sanded to an angle at the top to fit
against the leading edge. Cut the tip brace pieces from the 114
scrap provided (1/4
x 3 x 11-7/8). Add the filler piece at the
lower end of the wing tips, top and bottom. Sand this filler to
shape later after hinging and installing the ailerons. Sand the
leading edge to the rounded shape shown on the plans. Cut
off the spars and sheeting even with the root rib on the panels.
Cut the inner tip filler from some scrap balsa and add to
the inside of the tip. Shape it to match the ailerons and
tip filler blocks.
INSTALLING THE CENTER
TRAILING EDGE (BOTTOM WING)
I. MAKE CENTER SECTlON/TORQUE ROD AS-
SEMBLIES
Draw a centerline down the trailing edges of the wing
panels and down the leading edges of the center sections. Cut
a groove along the centerline in the tapered
5/8 x 1-3/4 x 3-1/2
balsa center section pieces for the aileron torque rods. Notch
the center sections for backward torque rod arm movement.
Glue the brass sleeves of the torque rods into the blocks with
epoxy. Make right and left assemblies. Also notch the trailing
edge of the wing panelfor forward movementof the torque arms.
2. GLUE THE CENTER SECTIONS TO THE WING
PANELS
Use vaseline at the ends of the tube of the torque
rod so you don't glue the wire to the wing. The rod must be free
to move. Glue the rod/center sections to the wing panels up
the centerlines.