Dynaflite DYFA3045 - Manual (Page 13)

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10. Temporarily join the rudder to the fin and
the elevators to the stab with the hinges. Make
adjustments to the hinge slots where necessary.
With the control surfaces temporarily joined,
sand the outer edges of all the parts round
(except for where they are hinged).
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11. Remove all the hinges. Use a razor plane
followed by a bar sander to shape the leading
edge of the rudder and elevators to a “V” as
shown on the plan.
Set the tail parts aside and proceed to the wing.
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1. Roll the wing plan inside out so it will lay
flat. Position the plan so the bottom center
panel is over your flat building board (or cut it
from the wing plan). Cover the plan with Plan
Protector or wax paper so glue will not adhere
to it.
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2. Cut a 1/8" x 1/4" x 24" [3.2 x 6.4 x 610mm]
basswood stick into two 12" [305mm] pieces.
BUILD THE BOTTOM
CENTER PANEL
BUILD THE WING
How to cut hinge slots with a hobby knife
When using a hobby knife to cut hinge slots,
one of the most common mistakes made by
modelers is making the slots too tight. This
restricts the flow of CA to the back of the
hinges. Another mistake made when
installing hinges is not using enough glue to
fully secure the hinge over its entire surface
area. This results in hinges that are only
tack
glued . Follow these steps to cut hinge slots
with a hobby knife:
A. Using the centerline as a guide, cut one of
the hinge slots where shown on the plan with
a #11 blade. Begin by cutting a shallow slit.
Make three or four cuts along the same line,
going slightly deeper each time. As you
proceed, be certain to go straight into the
wood and move the knife from side to side
until the slot is wide enough to accommodate
a hinge.
B. Test fit a hinge into the slot. If the hinge
does not slide into the slot easily, remove the
hinge and reinsert the knife, working the
blade back and forth a few times to provide
more clearance (it’s the back edge of the
blade that does the widening).
C. Cut the rest of the hinge slots the same way.
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