Stubby Too! A 3FNC Scratch Build
Custom Pine Turned Nose Cone,
BT/C-60 based body,
(3) 1/4" Plywood Fins,
and a 24mm motor featuring rear eject.
1/4" Dowels are used as fin base reinforcement, as well as the spears.
Inspiration for this one came from ASP's "Stubby" kit.
2026-06-25 Nose Cone
Got the Nose Cone turned on the lathe... made it from Redwood. The Lag Screw Plug is made from Southern Yellow Pine. Ballast goes in the void.
2026-06-26 Fin Sub-Ass'y
Cut the fins from 1/4" Plywood on my Table Saw and Scroll Saw.
Cut the Dowels from a 1/4" Pine dowel on my Chop Saw, sharpened the tips using a Mechanical Pencil Sharpener
Glued the Dowels to the Fins
Sanded the Dowels to fit the rear curvature of the Fins
Used my Router to round over the edges of the Fins
Sanded the routed edges.
2026-06-27 Fin Sub-Assy...
Applied some CWF to the fins early this
morning... then sanded it down later. Cut the BT/C-60 Tubes, The
Ballast and the Fillet Dowels. Then set about to glue the fins to the
C-60.
2026-06-28 Ballast Redeux
I fat fingered the Nose Cone Ballast in Open Rocket and input .454
ounces/cu-in instead of 4.54 ounces/cu-in. As a result the Nose Cone
Ballast is way to heavy... I used a 2" long bar when I needed a 3/4"
long bar. I glued the bar into the nose cone yesterday... so I went out
to the barn to drill out the Ballast Bar. Luckily once I started
drilling the Ballast Bar it broke free from the glue and I was able to
remove the Ballast Bar. Cleaned the glue from the Nose Cone internals
using Fostener bits, and then chucked it in the wood lathe and sanded
the outside.
New Ballast installed... good to go!
New Ballast installed... good to go!
2026-06-29 Nose Cone Lag Screw Plug and Nose Cone To Body Tube
Slathered some wood glue into the bore of
the Nose Cone, inserted the Lag Screw Plug, and sat the Nose Cone on
wax paper with a plastic lid under the paper for it to dry overnight.
Sitting it "Nose Up" allows the glue to drain downward, ensuring it
stays around the Lag Screw Plug.
Next morning removed the Nose Cone Assembly and allowed it to dry for 2 hours.
Then
glued the Nose Cone to the Body Tube via a couple of holes I punched
through the Body Tube. Spun the Nose Cone in the Body Tube a couple
times and then set is aside to dry.










