Page 5
Rev 508jf
There is a string attached to a small block of wood, tack glued
inside the servo opening. This string leads to the hole in the top of
the wing near the root rib where the servo lead must exit the wing.
There you will find another wood block holding that end of the
string. Break the block inside the servo opening loose and pull the
string out a few inches. Separate the wires of your servo extension
just above the plug and slip the block through. Break the block at
the other end of the string loose and pull the string and servo wire
through the wing and out the hole in the root rib. Now you can
screw the servo to the servo mount using the screws supplied with the servo. Mount the servo
with the servo arm toward the front. Remove the string from the servo wire and then do the
other wing the same way.
AILERON DIFFERENTIAL. The Gee Bee
“Y” flies best with aileron differential dialed
in. By using separate channels for the
ailerons and the flaperon function, you can
do this directly from most transmitters.
(Adjust to the recommended aileron travel at
the end of this manual.) If your transmitter
doesn’t have this function, center your
servos with the transmitter, then install the
aileron servo arms two splines toward the leading edge from the normal position (see picture).
INSTALL THE AILERON PUSHRODS AND CONTROL HORNS. Locate the two 3”
pushrods, one left and one right control horn and eight 2.6x12mm self tapping screws. Attach
one end of the pushrod to the outer hole of your servo arm and the other end to the outer hole in
one of the control horns.
Use a small clamp or tape to hold the aileron level. Hold the control horn in position so that the
pushrod comes straight back from the servo arm and mark the position of the four control horn
mounting screws.
Make sure the base of the horn is over the hard point in the aileron.
Drill
1/16” pilot holes and screw the horn to the aileron. Do the other wing the same way.
CHECK THE FIT OF THE WINGS TO THE FUSELAGE. Locate the 23mm aluminum wing
joiner tube and the two 10mm alignment tubes. File off any burrs or sharp edges on the ends of
the tubes. Slip the tubes into each wing separately. If the tube is hard to push into either wing,
rub the outside of the tube with candle wax. Put the wings together and test fit them onto the
fuselage to make sure that the wing retainer dowels in the front of the wing and the nylon wing
bolt holes in the rear line up properly with the holes and blind nuts in the fuselage. If there is any
misalignment, use a round file to move the holes as required. It is not necessary to glue the
wings together.
INSTALLING THE MAIN LANDING GEAR
PREPARE THE STRUTS AND WHEEL PANTS. Locate the two main gear assemblies, the
fixed and sliding wheel pants and the related hardware bags. Remove the rear braces from the
