Neo Mini Aerospace Speciality Products Page 4
the guide (see Figure D). Use a piece of tape to hold the guide in place. With a sharp pencil (or pen),
mark the body tube at the arrows at the end of each line for the three fins and the launch lug. Be sue
to note which line is for the launch lug. Remove the guide from the tube. Using something such as a
door frame (as shown in Figure E, try not to get pencil marks on the door frame while you do this!), a
piece of metal angle (see Figure F), or a drawer edge, extend each mark the full length of the tube.
Figure E Figure F
⎕
4) When the engine mount has completely dried it is time to glue it into the body tube. First take the
loose end of the shock cord and thread it through the top end of the engine mount tube (the end the
engine block is in) so that it hangs out the back of the tube (see Figure G) - this will help to prevent
from getting glue on the shock cord while you are gluing the engine mount in.
Test fit the engine mount assembly into the body tube. If needed, sand the outside of centering rings
for a smooth, but snug, fit. You should be able to slide the engine mount into the tube in one smooth
motion. Remove the engine mount from the body tube.
Locate the wooden craft stick and make a mark on the craft stick 1/2" from one end. Put some glue
on the end of the stick and
spread a even layer of glue 1/2" up on the
inside
of the body tube (see
Figure H).
Thread Shock Cord Through
Top of Engine Mount
Shock Cord Hanging Out of the
Rear of the Engine Mount
1/2" Mark
Apply Glue
INSIDE
Tube Here
Craft Stick
Figure G
Figure H
Next apply a thin layer of glue to the outside of the rear centering ring (the one further away from the
engine block, see Figure I). Rotate the engine mount so that the engine hook is in line with the launch
lug line drawn on the body tube and in one smooth motion insert the engine mount into the bottom of
the body tube (be sure to insert the end with the engine block first!
). The bottom of the lower
centering ring should be even with the bottom of the body tube (the red engine tube will extend out
from the bottom of the body tube), as shown in Figure J. Wipe away any excess glue that may have
