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Landing Gear (optional):

Cut 2 pieces of the 1.5mm carbon, 8” long and two 
pieces 1” long. Glue them together as shown with a 
1/8” overlap at a 45 degree angle. Cut a 6” piece of 
string and wrap the joint with it in two directions. CA 
the string to secure the axel.

Install the gear legs through the vertical fuselage and 
into the bottom of the wing, just behind the leading 
edge, but not through the wing. When you have the 
axles parallel and even glue the gear legs in place.
Glue the gear pant to the gear leg and the fuselage side. 
Slide the wheels onto the axels. Slide the wheel pant 
onto the axle and secure in place with a drop of CA 
leaving enough room for the wheel to spin freely. 

 

Final assembly:

Install the aileron servo and glue the top vertical
fuselage to the main assembly. Then cut pockets and
install the tail servos. The rudder servo goes on the
left.
Hinge the rudder to the aft of the vertical fuselage
pieces.

Install the motor onto the motor mount and velcro the
speed control and receiver to the lower left side of the
fuselage.
Use an exacto knife to slot the control horn locations in 
the ailerons, elevator and rudder. Glue the horns in 
place.

With all the surfaces set to zero, measure the distance 
between servo arm holes and control horn holes.  Cut a 
piece of 1.5mm carbon rod for each push rod to the 
measured lengths. Cut a 1.5” long piece of 1/32” wire 
and make a z-bend on one end. Slide a 1” length of 
heat shrink over each end of the carbon rod and then 
slide in a z-bend wire. Shrink the heat shrink tubing 
with a heat gun or flame. The z-bend wire is not glued 
in position yet and can be moved for final adjustments.

Remove the servo arm and assemble the pushrods to 
the servo arm and control horns. With the servo 
centered reattach the servo horn. Make any final 
adjustments to the z-bend location. Use regular (not 
foam safe) thin CA to secure the z-bends to the push 
rods by placing a drop at each end of the heat shrink 
tubing. If you get some CA on the servo or control horn 
this is ok and moving the controls will allow the z-
bend to break loose.

Note: This push rod setup will act to save your servos. 
In the event of an impact the glue holding the z-bend to 
the push rod will likely give before the servo gears. If 
the z-bends start to slide in the heat shrink a drop of 
CA will secure them again.

3

Summary of Contents for 32” Yak-55

Page 1: ... and kit to us for a refund By building the kit and using the batteries you accept full responsibility for the safety of these batteries Recommended building methods and glues Much of the construction of this model is done by laying the parts on a flat table It is strongly recommended that you put wax paper down on the surface first so any excess glue doesn t soak through the foam and glue the par...

Page 2: ...ece and glue the mount in place For a firewall plate wait until the airframe is built before installing Set motor mount with NO right or down thrust It is not required If installing a single aileron servo then cut a pocket for it now in the nose piece Lay the vertical pieces on the horizontal assembly to mark and cut clearance pockets for the aileron servo Glue the lower vertical fuselage pieces t...

Page 3: ... to slot the control horn locations in the ailerons elevator and rudder Glue the horns in place With all the surfaces set to zero measure the distance between servo arm holes and control horn holes Cut a piece of 1 5mm carbon rod for each push rod to the measured lengths Cut a 1 5 long piece of 1 32 wire and make a z bend on one end Slide a 1 length of heat shrink over each end of the carbon rod a...

Page 4: ...e model proper balance Adjust the battery location back and forth to suit your flying style Use your computer radio to set the final sub trims exponential and dual rates Double check the control directions before your first flight With proper CG the plane should fly nearly the same upright or upside down Good pilots experiment with various battery locations until the CG feels just right For indoor...

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