d) Cut the wire ¼” past the mark and then put a 90-degree
bend in the wire.
e) Push the wire through the outer hole in the servo output arm
and secure with a nylon pushrod snap keeper.
f) Make sure that the rudder servo is in neutral position and
then adjust the metal clevis at the tail end as needed to get the
rudder in perfect neutral position.
g) After the rudder is properly adjusted, insure that the metal
clevis can’t open up and come loose from the control horn by slid-
ing the small piece of fuel tubing over the arms of the clevis. Also
tighten the M2 Hex Nut up against the back of the clevis
❑
26) Locate the pre-cut pushrod exit hole for the elevator on the
right side of the fuselage at the back of the plane and repeat step
25) in its entirety to install the elevator pushrod.
Skip this section if your using a glow engine power setup
For this section you will the Fuselage and:
(1) Fiberglass Cowling
(4) M3 x 10mm Screws
(1) Plywood Electric Motor Mount
(1) Balsa Triangle Stock
(4) M4 x 20mm Socket-Head Bolts, for motor mount
(4) M4 Flat Metal Washers, for motor mount
(4) M4 x 16mm Socket-Head Bolts, for motor
(4) M4 Split-Ring Lock Washers, for motor
(4) M4 Blind Nuts, for motor
(2) Hook-&-Loop (Velcro®) Straps
(1) Electric Motor, ESC, Prop, Lipo Battery (not furnished)
NOTE: The mounting of the electric motor in the 4-STAR 54 as-
sumes that your motor has a typical "X" or "cross" mounting plate
on the back of the motor. Also note that the firewall portion of the
laser-cut plywood motor mount is adjustable fore and aft to ac-
commodate different length motors. Next we will determine where
you should set the firewall for your particular motor.
❑
27) Assemble your motor according to the manufacturer's in-
structions. Then carefully measure the distance from the back of
the mounting plate to the front of the thrust washer*.
*
The “thrust washer” is the part of the prop adaptor where the
back of the propeller will be located.
❑
28) For the 4-STAR 54, you need a distance from the back edge
of the motor mount to the motor’s thrust washer to end up exactly
4-1/2”. This is important so the cowling will fit properly.
a) So what you need to do is to subtract the measurement
taken in the previous step (27) from 4-1/2”. The result is the dis-
tance you need to set the front of the firewall from the back edge
of the plywood motor mount box.
(With the motor we are using in
these photos, the motor measurement is 2-1/2”. So
4-1/2”
minus
2-1/2” = 2”. Your result may be different depending on your motor.)
b) Carefully measure and mark the distance determined in the
previous step from the back edge of the motor mount box towards
the front. Do this along side each of the adjustment slots on both
10
ELECTRIC POWER SYSTEM
