This picture shows
all of the parts for the nose cone of the Nike. Two body tubes a
6" and a 3.9" have both been covered in two layers 7.5 oz.
glass.
The shoulder of the
nose cone was made from two 1/2" birch plywood centering rings. The
length of the shoulder was made by a 2.5" length of 11.41" PML
tube. Notice the notches cut into the edge of the centering rings. This
relief allow the tube to sit into the centering rings. Prior to
assembly the ID of the tube will be glassed for added strength.
The
6" tube will serve as the drogue chute compartment. It has a useable
internal length of 15" allowing plenty of room for the 15' chute
along with 75 feet of 1" tubular nylon shock cord. Looking down
from the top we see plate that the upper tube will rest on. The hole in
the center is for the 1/2" hard mount point for the drogue. Epoxied
underneath this plate are the Primary, Backup, and R/C controlled ejection
holders.
A
test fit of the all the components of the nose cone looks like this. The
actual "cone" that will fit into the end of the 3.9" tube,
will be turned from maple.
The nose cone will
rest on the nose cone coupler. Shown in the two pictures below. This
coupler has a 6" coupler on one end, and a 7.5" coupler on the
other. A piece of 1/2" all thread runs the length of this with welded
eye bolts on either end. The nose cone coupler along with the
3" length of 11.41" tubing all work together to make the shoulder
of the nose cone.