1/4" pencil mark. Remove the casing leaving the engine block inside.
Nose Cone
e nose cone is formed from single segment of the T.P. rolls.
Cut down the length of the tube in a straight line. From the pat-
tern sheet, cut out the nose cone template.
Line up the top of the template pattern with the top edge of the
opened roll. Trace around the pattern with a pencil and mark the
glue tab. Cut out the tube piece with scissors.
Pre-form into a cone. e small tip can be shaped using a sharp-
ened dowel. Apply a light coat of glue to the tab.
Form the nose cone making the tip as tight and small as you can.
e bottom edges on the wide end meet and the edge should be even.
Hold the tab closed tight until the glue sets up. Let dry before con-
tinuing.
You may not get a well-formed nose cone the first time. ese
take a little practice. Simply cut out another and try again.
Nose Cone Shoulder
e interior nose cone shoulder is built up from standard
model rocket parts.
Cut a BT-20 to 2" long. A BT-20 size coupler is cut to 1" long.
Slide a 20/50 centering ring just over the top of the 2" long BT-20,
SPORT ROCKETRY MAY/JUNE 2022 39
Nose cone parts.
Figure 33.
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Main body tube parts.
