The biggest objection
to hinging flight surfaces seems to be the weight
of the wire and glue added to the tail. This is
not logical, as the alternative is to tack a glob
of clay weighing several times more, or using
unsightly shims or tabs (I have yet to see a significant
adjustment to a flight surface by “breathing
and twisting” as is amusingly suggested
buy some kits). With a little practice, any level
of builder can master this. If Don Srull does
it, well, why not?
NOTE: You WANT it to be hard to bend! Use 3 pieces
per side for peanuts and embryos, and 5-8 wire
pieces per side for FAC scale. Fig 1and 2 show
two hinges.
FIG 1
Here's how to do it...
Modify tail surfaces; add 2 length-wise center
strips instead of the usual one found.
Get twisty ties, scrape off paper. Cut exposed
wire into ½” length pieces, need
3-5 per side.
Round the edges of the center strips where
they will join, to allow room for flexing when
finished
Eyeball center of wood, use a pin to poke
a hole in both strips at the cross members,
that will anchor the wire.
Place ALL the wires ¼” into
the pinholes, on one side only. Zap with CA,
let fully set.
Bring the other side together, line up the
pinholes and wires use tweezers to thread the
wires into the pinholes.
CA the rest of the wires to the crosspieces.
The two sides will be bonded together, by
the CA, so run a razor down the center to free
up.
Remember, it does not have to move very far
in each direction.
