
Our control horns are silver brazed
for superior strength and are constructed of aircraft grade steel.

The standard flap horn is
constructed from tool steel and music wire. The upright arm is 1/16X1/4 tool
steel brazed to music wire. Brass bushings are installed on the
music wire to help stabilize and secure the horn to the trailing edge of
the wing. If the horn is constructed with 1/8 inch wire there is a choice of
either music wire or low carbon tweakable wire. The low carbon 1/8 wire gives
rigidity with the benefit of being tweakable. The 1/8 music wire gives the
strongest horn with the most rigidity. These flap horns can also be
constructed with a 3/32 inch music wire. If using anything over a 35 to 40
muffled engine for power the 1/8 wire is recommended. By having
the 3/32 inch ID brass pushrod bushings brazed in place you will be able to
solder the retaining washers on the pushrod without the chance of melting the
bushings loose. If using Rocket City ball links the pushrod bushings can be
replaced with 4-40 tapped holes. The wire arms can be bent to your specs or
they can also be left unbent. The location of the pushrod holes or 4-40
tapped holes are drilled to your dimensions. The upright arm of the horn can
also be offset for installation into a profile airplane. The price of
this horn is $12.00 ea.

The elevator horn is constructed of the
same material as the flap horn. The difference is the dimension of the upright
arm being 3/16 inch instead of the 1/4 inch used on the flap horn. Wire size is
either 1/8 inch or 3/32 inch music wire. The location of the pushrod hole or
4-40 taped hole and the wire span are to your dimensions. The price of this horn
is $12.00 ea.
