The framework is to be covered with cloth in the
same manner as the planes. For this about ten yards
will be needed.

Strengthening the Rudder.

To ensure rigidity the rudder must be stayed with
guy wires. For this purpose the No. 12 piano wire is
the best. Begin by running two of these wires from the
top eye-bolts of stanchions 3 and 4, page 37, to rudder
beam where it joins the rudder planes, fastening them
at the bottom. Then run two wires from the top of the
rudder beam at the same point, to the bottom eye-bolts
of the same stanchions. This will give you four diagonal
wires reaching from the rudder beam to the top
and bottom planes of the glider. Now, from the outer
ends of the rudder frame run four similar diagonal wires
to the end of the rudder beam where it rests on the
cross piece. You will then have eight truss wires
strengthening the connection of the rudder to the main
body of the glider.

The framework of the rudder planes is then to be
braced in the same way, which will take eight more
wires, four for each rudder plane. All the wires are
to be connected at one end with turn-buckles so the
tension may be regulated as desired.

In forming the rudder frame it will be well to mortise