Build the tail surfaces – Great Planes Lil' Poke Park Flyer Kit - GPMA0005 User Manual
Page 7
❏ 1. Unroll the plan sheets and re-roll them inside-out so
they will lie flat. Position the fuse plan so the fin and rudder
are over your flat building board (or cut the fin and rudder
from the plan and place it over the building board). Cover the
plan with Great Planes Plan Protector or waxed paper so
glue will not adhere to it.
❏ 2. Build the rudder using two 1/8" x 1/8" x 24" [3.2 x 3.2
x 610mm] balsa sticks. As shown in the photo, most of the
sticks don’t have to be cut to exact length until after the
rudder is removed from the building board.
❏ 3. Remove the rudder from the building board. Cut and sand
the balsa sticks on the trailing edge to form a curved contour.
Use a bar sander with 150-grit sandpaper to bevel the leading
edge as shown in the cross section on the plan. Carefully sand
both sides of the rudder flat, even and smooth.
❏ 4. Holding a small sheet of 320-grit sandpaper by hand,
carefully round the trailing edge.
❏ 5. Build the fin, stab and elevators the same as the
rudder. When building the elevators, bevel the leading edges
and round the trailing edges, but do not permanently join
them to each other with the joiner until instructed to do so.
❏ 6. Test fit a .030" [.76mm] pushrod wire in the holes of the
laser-cut 1/16" [1.6mm] plywood elevator and rudder
control horns (marked “E” and “R”). If necessary, carefully
enlarge the holes with a #68 (or 1/32" [.8mm]) drill or a
hobby knife.
❏ 7. Cut the slots in the elevator and rudder to accommodate
the control horns, then glue the horns into position. Be certain
the elevator horn is in the bottom of the right elevator and that
the rudder horn is on the left side of the rudder.
❏ 8. Pin both elevators, upside-down, over their location on
the plan. Sand a bevel to one edge of the 1/8" x 1/8" x 1-1/2"
[3.2 x 3.2 x 38mm] basswood elevator joiner to match the
bevel on the leading edge of the elevators. Securely glue the
elevator joiner to both elevators.
Now it’s time to build the wing.
BUILD THE TAIL SURFACES
7