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T
RIM the edges of the F-10 spacers until
the motor mount tube will fit in place as
shown. The top of the motor mount tube
should just touch the bottom of the tail-
boom. The spacers should be within
1
⁄
16
" of
the motor mount tube, but not touch it. This
allows the motor alignment to be set entirely
by the jig.
Apply epoxy to the spacers and set the
motor mount tube and jig in place. Check
that the jig is sitting flat on the tailboom and
is aligned with the centerline. You can tack
glue the jig to the boom with CA if you want.
Wipe off any excess epoxy, and allow to cure.
Remove the motor casing and jig.
C
AREFULLY layout and draw a centerline
on the bottom of the tailboom.
Remove the two F-10 motor spacers from the
3
⁄
32
" die cut balsa sheets. Bevel the aft ends
until they will fit together as shown, and glue
in place.
A thin, trailing edge is important on the spac-
ers where they meet. Excessive turbulence in
the airflow in this area will tend to pull the
hot motor exhaust up towards the tailboom.
Draw centerline on boom
Bevel aft end of F-10’s
Glue in place
Phoenix
Page 23
Final Assembly
Attach motor pylon
Trim F-10’s to fit tube
Glue motor mount in place
Check alignment !
Install motor mount
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