Further detailing is left up to
you. We recommend at least
cover the frame with the 0.8
mm plywood sheet.
See the photo for further
detailing of the inside of the
speed brake door. This
detailing is basically a very thin
frame of plywood, 3 mm (1/
8th”) high, and then filled with 2
additional ribs, which you can
cut from 3mm balsa.
Use primer to fill the balsa, and
build up a good base coat for a
later painting.
Glue the thin plywood from the
inside against the frame. Use
CA glue. After that you can fit
the vacuum formed detail in
the frame and glue it to the
plywood backplate.
The movement of the speed
brake door is done by an air
cylinder. Although you might
think that the setup and angle
of the cylinder is correct, as all
moves smothly when you
move by hand, try to apply
pressure air to the cylinder,
and double check whether all
moves as smoothly when the
cylinder does it’sjob. It might
be different. So you might have
to sand a little more on the
contours of the speed brake
door, and you moght have to
change the mounting points of
the cylinder slightly. This is why
we recommend to permanently
fix everythingAFTER you
tested the movement with air!
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