This weekend I launched my hacked version of the TOR.com Stubby rocket. This static cardstock rocket is as the name implies “stubby” with fins pretty far forward. The challenge was giving this rocket enough stability that it would fly. I began by converting the model to have a BT-5 tube than ran the length of the rocket with centering rings and structure to support. The nose was converted to pop off from the ejection charge revealing a small chute/streamer for a simple active recovery. The nose weight required for stability was fairly substantial for this size paper rocket and moved the CG forward enough to make it marginally stable. The build require quite a bit of alteration to the rear motor assembly to encompass a 13mm Estes motor.
The first flight of Stubby was successful. I flew the Stubby on a 1/2 A-4T which was a little underpowered and caused the rocket to do a slow arc across the sky. Next launch I will use a A-10 which is probably better suited for this build.
Download Stubby! – From Nava Designs