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13
16.
r
Test fit the Secondary Fin assemblies in place
by locating the alignment lines on the Upper Main Body
Tube. The Secondary Fins assemblies start
flush
forward of the Transition Cone. Note keep them on the
same side of the alignment line as the Primary Fins.
Apply a bead of CA glue to the root edge of a
Secondary Fin and the face Fin Bulkhead as shown.
Ensure Secondary Fin assembly is aligned to alignment
line and the associated Primary Fin and then press
Secondary Fin assembly in place. Hold Secondary Fin
assembly square until glue dries (20-25 seconds).
Repeat process for remaining two Secondary Fin
assemblies.
15.
r
Take a Primary Fin assembly and apply CA as
shown to all surfaces that will contact the Engine Mount
Assembly and Main Body Tube. Keeping the Primary
Fin assembly square, insert the fin into one of the Main
Body Tube Primary Fin holes and press firmly in place.
Hold the fin square until glue dries (20-25 seconds).
Repeat the process for the other two Primary Fins
assemblies.
Optionally use thicker CA glue if more
assembly time is needed since thicker CA dries slower.
Secondary Fins are
flush
forward of Transition Cone
Apply glue
to root edge
Alignment
lines
C
A
G
LU
E
Apply on
fin edges
Apply on side tab
face and notch edges
Keep fins
square
C
A
G
LU
E
17.
r
Using Wood glue apply glue fillets to one set
of Primary Fins and Secondary Fins to Main Body Tube
joints. Once the glue has set (10-15 minutes) rotate the
#
rocket assembly 120 and apply the next set of fillets.
MAKE SURE FILLETS DO NOT RUN ONTO THE
MAIN BODY TUBE,
FIN
FACES
OR
BULKHEADS
.
DON'T RUSH!
WO
OD
GL
UE
Apply glue fillets