Shape the LEs and TEs using a razor plane and sanding
blocks. Glue the wingtip formers to R-3T. Glue the wingtip
braces R- 5 through R- 8 to the top and bottom of the wingtip
formers—this will require bevel sanding for proper fit where
the braces meet R-3T.
Glue a set of T- 1, T- 2, and T- 3 to the top and bottom of
each wingtip. Glue T- 9 to the top and bottom of each wingtip.
Shape the wingtip with a razor plane and sanding blocks.
The wing panels are joined with epoxied 1/8-inch plywood
doublers. Install the 1/8-inch center rib to allow for 1/16-inch
planking. Place scrap balsa on both sides of the center rib to
provide material for wing-dowel mounting.
Install 1/16-inch square stock across the LE spar and the TE
to give the center planking something to adhere to. Plank the
center section using 1/16-inch balsa. Install a 3/16-inch dowel in
the wing’s center.
To install the landing gear blocks, build up the left and right
landing gear block assemblies by gluing two L-2s to an L- 1
with spacing for the 1/8-inch music wire. Glue two sets of three
L-3s into a stack and attach to R- 1.
Use epoxy to glue the landing gear
blocks to the L- 3 stack and ribs. The main
landing gear is bent from the music wire
and held in place with tin straps and servo
Pin one fuselage side assembly flat on
the building board and install F- 3, the
battery compartment floor, the wing
hold-down bracket, and F- 4. Ensuring
that the fuselage is not twisted, install a
second fuselage side. Pull the side formers
together and install F- 2.
Build up the motor mount and nose
block by using epoxy to glue two F-1s
with F-1A through F-1C. Install the
nose block/motor mount assembly with
epoxy. Glue in F- 5 through F- 8. Ensure that the fuselage is
symmetrical and not twisted, bring the two sides together, and
glue them at the rudder post.
Glue in 1/4-inch triangular stock along the lower fuselage
sides between the wing mount and the rudder post and
between F- 2 and F- 3. This triangular stock provides support
so that the lower fuselage sides can be rounded at the corner.
Using 3/32-inch balsa planks, plank the fuselage top between
F- 2 and F- 3, and plank the lower fuselage between F- 2 and F- 3
with 1/8-inch balsa sheet. Plank the lower rear fuselage with 1/16-
inch balsa. Glue in 1/16 x 1/8-inch balsa or basswood stringers on
the turtleback. Shape the bottom edges of the fuselage.
Using 1/4 balsa sheet, build up the top and bottom areas
between F- 1 and F- 2 with balsa blocks. Do not glue these.
Shape the nose blocks and the bottom and top hatch blocks.
To expedite the process, use a power disk and belt sander to
rough sand the area into shape.
Hollow the upper and lower blocks to a 1/4-inch thickness.
Using epoxy, glue the bottom block between F- 2 and the nose