4. Slide the nosecone onto airframe. The no-
secone should fit snug but not tight onto the air-
frame. If the nosecone is too loose, use a piece
of masking tape on the shoulder of the no-
secone to snug the fit. If too tight sand gently
with 240 grit sandpaper. Remember, the chute
is deployed when HOT gases from ejection
charge expand in the airframe, popping the no-
secone off, so you want a snug fit - not to tight,
not to loose.
5. Now pack the Drogue parachute by follow-
ing the exact same steps and then connect the
forward airframe to the aft airframe.
Attaching the GLR Rail Guides
1. The rocket is now nearly ready to fly. We
have just a few steps left, but they are critical
steps. Begin by marking a line along the length
of the airframe section. Angle aluminum (1" by
1”) is particularly helpful because when laid on
a tube, it allows one to mark a straight line on a
curved surface. You may want to make it a per-
manent part of your rocketry toolbox. Make
sure that the line is between two of the fins on
the GLR Acme FinCan, otherwise the fins will
interfere with the rail.
2. Measuring from base of the rocket to base of
rail guide, place one rail guide about 11” up
from the aft end of the rocket and the other
about 32". Then trace each rail guide on the air-
frame. Remove GLR Rail Guides.
3.
Lightly sand the attachment points on the
airframe as well as the GLR Rail Guides for
good adhesion. Mix J.B. Weld and attach first
the rail guide to the points on the airframe (see
photo). While curing, sight down the tube to
check for good alignment. It is also a good
idea to place some tape on the GLR Rail
Guides lightly securing them to the airframe.
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