1.
ASSEMBLING ENGINE MOUNT
page 2
C.
Stack Fins and sand edges.
A.
Sand Die Cut Balsa Sheet
with fine sandpaper.
B.
Cut Fins free with hobby knife.
A.
Measure and mark Engine Tube.
F.
Apply glue around tube at 1/2” (13 mm) mark and
slide notched Ring into place. Let glue set. Apply
glue around end of tube and slide unnotched
Centering Ring in place flush with tube end.
B.
Remove the guide and save for step 6. Connect
Fins and Launch Lug lines (arrows) using door
frame as shown.
C.
Extend Launch Lug line 3 3/4”
(95 mm) from end of tube.
C.
Apply glue around tube just ahead of
the 1 1/4” (32 mm) mark. Position Hook.
GLUE
1/8”
(3 mm)
B.
Cut 1/8” (3 mm) slit at
2 1/2” (64 mm) mark.
1 1/4”
(32 mm)
1/2”
(13 mm)
2 1/2”
(64 mm)
D.
Slide Mylar Retainer Ring onto Engine
Mount Tube up to 1 1/4” (32 mm) mark.
A.
Use finger to smear glue 2” (51 mm) inside rear
of Body Tube.
B.
Align Engine Hook with Launch Lug line and insert
Engine Mount until Engine Tube is even with Body
Tube end.
C.
Use a scrap piece of balsa to apply a glue
fillet to Centering Ring/Body Tube joint.
E.
Apply glue inside front of Engine Mount
Tube. Insert Green Engine Block.
FRONT
MYLAR
RING
G.
Apply glue fillets to both sides of Centering
Rings. Let glue dry completely.
GLUE
GREEN
ENGINE
BLOCK
1/2”
(13 mm)
FLUSH
WITH
END OF
TUBE
DOOR
FRAME
TOP VIEW
3.
MARKING FIN AND LAUNCH LUG LINES
4.
INSERTING ENGINE MOUNT
SCRAP
BALSA
2.
PREPARING FINS
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™
UNNOTCHED
CENTERING
RING
BLUE
ENGINE
MOUNT
TUBE
LL
LL
ENDS EVEN
NOTCHED
CENTERING
RING
GLUE (FILLET) BOTH
SIDES OF EACH RING.
TAPE
LL
A.
Cut out Tube Marking Guide from front page. Tape Tube Marking
Guide around Body Tube. Mark Body Tube at arrows and
Launch Lug line “LL”.
3 3/4” (95 mm)
LL
2”
(51 mm)
GLUE
BODY
TUBE
LL
