SIG SIGRC80 Rascal C, Instruction Book, Page: 18 / 31

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58. The leading edges of the rudder and elevators are now sanded to shape to allow
movement when hinged in place. As shown on the plans, these leading edges
are double beveled to the centerline, allowing up and down and right and left
movement. After beveling, the elevators and rudder are pre-hinged to the
stabilizer and fin. Using the hinge locations shown on the plans, mark the
locations of each hinge position on the elevators and stab and the fin and rudder
with a soft lead pencil. Use your hobby knife and a sharp #11 blade to make
each necessary slot for the hinges. Pre-fit the hinges and flying surfaces to the
fin and stabilizer, making sure the fit is correct. When satisfied, remove the
hinges and separate the parts for covering and assembly.
59.
The tailwheel/wheel pant assembly is now made. Locate the pre-bent tailwheel wire and the two laser cut balsawood
wheel pants from your kit contents. As shown, the tailwheel wire is sandwiched between the two wheel pant halves, using
5-minute epoxy. When the glue cures, use a sharp #11 blade and your hobby knife to shape the wheel pant to rough
shape. Use 220 grit sandpaper to smooth the wheel pant to final shape. Note that we also filled-in the half-wheel of the
tailwheel wire with a scrap piece of 1/16" balsa. Later, when the wheel pant was finished, we painted this half-wheel flat
black, simulating a tire.
60a.
The tailwheel wire is now mounted to the rudder. As shown, the rudder end of
the tailskid wire is glued into the bottom, leading edge of the rudder. From the
contents of your kit, locate the 1/2" length of 1/16" OD aluminum tubing. This
length of tubing will be glued into the rudder to receive and hold the top part of
the tail skid wire. Use a 1/16" dia. drill bit to drill a guide hole into the leading
edge of the rudder, about 9/16" deep.
b.
Coat the outside surface of the tubing with 5-minute epoxy and use a toothpick to
install the tubing fully into the drilled hole. Use a single edge razor blade to cut a
shallow channel, from the tubing hole down to the bottom of the rudder - this
channel locates the tail skid wire vertically to the rudder. Test-fit the tailskid wire
in place. It should fit perfectly flush with the leading edge of the rudder. Once
satisfied, use 5-minute epoxy to glue the tailskid wire in place into the tubing and
channel and allow the glue to cure.
61.
Locate the two laser cut 1/64 th plywood rudder and elevator control horns.
These will not be glued in place until the radio system is installed. However, now
is the time to trim them to fit in the rudder and elevator slots. Use a sharp pair of
scissors to trim them to fit perfectly in place. Afterwards, use a bit of tape to
identify them as the rudder and elevator horns for reference.
Mounting The Tail Group