Dynaflite PT-19 User Manual
Page 20
12. Build three shims from leftover 3/32" and
1/16" balsa to create 5/32" thick shims. Place the
shims into position over the plan and then glue and
pin the TE into position.
13. Cut and fit the ribs from 3/16" x 1 /2" x 30"
balsa. Cut the longer ribs first. When satisfied with
the fit, glue them into position.
NOTE: It is important that the ribs fit the LE and TE
well. It is not important that each rib fit the exact
location shown on the plan.
14. Remove the rudder from the plan and rough
sand it to the shape shown in the cross section.
15. Tack glue the rudder to the fin.
16. Sand the assembly to its final shape.
17. Separate the rudder from the fin. Sand the
trailing edge of the fin flat as shown on the cross
section of the plan.
18. Mark the centerline of the rudder leading
edge along its entire length. Using the cross section
on the plans as a reference, sand the leading edge
to the "V" shape shown. Make sure the "V" is
enough to allow for the full left and right movement
of the rudder.
3. Cut two 1 /2" x 15/16" x 1 -1 /2" balsa blocks
from leftover sticks and drill a 5/16" hole in the
center of both blocks.
4. Slide the 5/16" x 5-1/4" wing dowels
through the holes in the LE and put a block on the
end of each dowel. Align the blocks on the 1/16"
ply dihedral braces so that the dowels are parallel to
the wing centerline. Glue the BLOCKS ONLY to the
dihedral braces with 6-minute epoxy. Remove the
dowels before the epoxy sets.
a
1. Find the eight 1 /8" die-cut balsa wing saddle
pieces. Glue four pieces together using medium CA
to form one wing saddle. Glue the other four pieces
together for the second saddle.
5. Fit the wing to the fuselage. Center the wing
and mark the location of the dowels on bulkhead C.
This is done by putting a pencil through the hole in
the LE and marking the bulkhead.
6. Remove the wing and drill 5/16" holes into
bulkhead C.
7. Put the dowels into the wing and fit the wing
back onto the fuselage. Make any adjustments
needed to get the dowels to fit properly into the
holes in bulkhead C. When satisfied with the fit, glue
the dowels into the wing with 6-minute epoxy. Use
caution not to get any epoxy on the fuselage.
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