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.
❑
25) Locate the pre-cut pushrod exit hole for the rudder on the
left side of the fuselage at the back of the plane and repeat step
24) in its entirety to install the rudder pushrod.
Skip this section if your using a glow engine power setup
ELECTRIC MOTOR & ESC INSTALLATION
For this section you will need:
(1) Fuselage
(1) Plywood Electric Motor Mount
(1) Balsa Triangle Stock
(4) M4 x 20mm Socket-Head Bolts
(4) M4 Split-Ring Lock Washers
(4) M4 Flat Metal Washers
(4) M4 x 16mm Socket-Head Bolts
(4) M4 Split-Ring Lock Washers
(4) M4 Blind Nuts
(2) Plywood Battery Box Sides
(1) Plywood Battery Box Top
(1) Velcro® Strap
(1) set Electric Motor, ESC, Prop, Lipo Battery (not furnished)
NOTE: The mounting of the electric motor in the T-CLIPS 70 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.
❑
26) 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.
❑
27) For the T-CLIPS 70, you need a distance from the back
edge of the motor mount to the motor’s thrust washer to end up
exactly 5-1/4”, in order for the cowling will fit properly.
a) So what you need to do is to subtract the measurement
taken in the previous step (26) from 5.25”. 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 3.21”. So
5.25”
minus
3.21” = 2.04”. 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
sides of the box (four marks total).
c) After you have all four slots marked, carefully align the front
face of the firewall to line up with the marks. Make sure you end
up with the firewall straight and square in the box. If it is not,
recheck your marks and adjust as necessary.
d) Tack glue the firewall in place. Recheck once more to make
sure that the front of the firewall is at the correct distance from the
back of the motor mount box. That distance plus the length of
your motor must equal 5-1/4”. When satisfied it is correct, glue
the firewall securely to the rest of the motor mount box.
❑
28) Remove the X mount plate from the back of your motor and
center it on the firewall. Once you are sure it is properly located,
mark the mounting holes with a pencil. Remove the X mount and
drill out the mounting holes with a 7/32" dia. drill. Install four M4
Blind Nuts in the holes, on the back side of the firewall. Put a cou-
ple drops of glue on the flanges of the blind nuts to secure them
to the plywood. Be careful not to get any of the glue in the
threads.
❑
29) Locate the piece of balsa triangle stock provided. Measure,
cut and install pieces of triangle stock to reinforce all the corner
joints inside the motor mount box.
❑
30) If you have not already re-attached the X mount plate to the
back of your motor, do so now. Then use (4) M4 x 16mm Socket-
Head Mounting Bolts and Lock Washers to bolt your motor in
place on the plywood motor mount box.
❑
31) Install your ESC
a) Solder appropriate battery connectors (not supplied) to the
10
ELECTRIC POWER SYSTEM
