Great Planes Spirit ARF MonoKote - GPMA1045 - Manual (Page 11)

Note: Since the spoiler installation is optional, none of the
hardware has been included.
❏ ❏
1. Use a hobby knife to cut a hole in the bottom of the wing
sheeting for the spoiler tubing to exit the wing as shown.
❏ ❏
2. Pull the end of the spoiler tubing out of the wing just far
enough to glue it in place using thick CA.
❏ ❏
3. Cut the covering all around the edge of the spoiler and
remove it from the wing panel.
❏ ❏
4. Tape the spoiler in position in the wing using a strip
of cellophane or vinyl tape or a strip of covering. The tape
should be flexible enough to allow the spoiler to close on its
own. The tape should also be replaced occasionally as it will
eventually rip.
❏ ❏
5. Thread a 42" [1070mm] length of braided fishing
line (not included) through the spoiler tubing in the wing.
❏ ❏
6. Thread one end of the line through the small hole
in the spoiler horn and use a piece of a round toothpick to
hold the line in the horn. Allow about 1/2" [13mm] to hang
out the other side of the horn for fine adjustments. It may be
necessary to drill out the spoiler control horn using a 3/32"
[2.5mm] drill bit. Trim the shear web to allow the toothpick to
pass through without interference.
❏ ❏
7. Glue a small lead weight on the bottom side of the
spoiler to help it close. 1/4 – 1/2 oz. is usually enough since
the airflow will keep the spoilers closed when the plane is
flying. Repeat steps 1 through 7 for the opposite spoiler.
❏
8. Mount the wing onto the fuselage and pull the ends of
the spoiler strings up to the spoiler servo. Position the spoiler
servo horn at the rearward end of its swing and wrap one
spoiler string around the screw in the horn. With the spoilers
held closed, apply a drop of CA to glue the string to itself,
forming a small loop. Remove that string and do the same
steps to the other string. The two strings should be the same
Optional Spoilers
11