RocketTree
Well-Known Member
SpaceJet is a scratch build, influenced by the Estes Jetliner BT60 kit. I have previously built the BT60 kit (heavily modified), then a BT80 29mm version. Here is the lightweight 4 inch upscale designed to fly on 29mm G motors to around 1250’ at 350km/h.
Some parts to get the build started...
Fins upscaled on OpenRocket from the original, and cut on the bandsaw.
Fin wraps printed on OpenRocket. Angle aluminum and a sharp pencil to layout the tube.
Cutting slots with a Mastercraft blade knife.
Main wings are glued together with plywood reinforcement strips.
Epoxy layer over reinforcement strips and fin tabs where they will be subjected to ejection blasts.
Install 1500lb kevlar loop, heat shrink, knot and epoxy to underside of ring.
Wing support can slotted and ready for fins.
Assemble wing can with BSI 15 min epoxy.
Wing installed with multiple internal fillets.
Some parts to get the build started...
Fins upscaled on OpenRocket from the original, and cut on the bandsaw.
Fin wraps printed on OpenRocket. Angle aluminum and a sharp pencil to layout the tube.
Cutting slots with a Mastercraft blade knife.
Main wings are glued together with plywood reinforcement strips.
Epoxy layer over reinforcement strips and fin tabs where they will be subjected to ejection blasts.
Install 1500lb kevlar loop, heat shrink, knot and epoxy to underside of ring.
Wing support can slotted and ready for fins.
Assemble wing can with BSI 15 min epoxy.
Wing installed with multiple internal fillets.
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