Aeroplane - Flaps
with thanks to Richard Pearse, Waitohi, New Zealand, March 31, 1902
The flaps are not your usual simple flap that moves from level to down, but
the type that moves out, then down.
The technical name for this type of flap is a Fowler Flap, it may even be a
slotted Fowler flap. The flaps were a little more tricky than I originally
imagined. The two types of motion, lateral and rotational, complicate things
somewhat, but using runners and a rack and pinion system made the whole
system fairly straight forward to build.
The LDRAW CAD models for the flaps comes in two parts. The
flap mechanism - which is the
actual flap, and the flap housing
which is basically part of the wing. Again this is a multi-part
model so both files will need to be in the same directory for it to work
with your LDRAW viewer.
CAD models for the flaps can be downloaded.
I've also got PDFs of multi-step instructions for the flaps with each instruction step detailing the parts required.