Ultralight Rocket

thingiverse

This need for speed rocket was designed the day after I first tried to fly the "Modular Rocket" design [ http://www.thingiverse.com/thing:8754 ] from this site; video: [ http://youtu.be/4qqQSMpU9F8 ]. Plus, I wanted to take advantage of the height of my Rostock Max build area to make a ridiculously tall rocket. In it I fit the largest engine you can get at a regular hobby shop in the slimmest possible package. WARNING: This design has not been tested. Fly at your own risk. See the list of possible failures below. Specs Length: 1.3 meters Diameter: 26mm OD, 25mm ID Width: 57mm Engine: 24mm x 93mm Weight: ## This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/8Yjxvd6FzVC Instructions Designed to be printed on a Rostock Max printer (around 13.5" tall segments.) Fits an Estes E class engine, but you could make a spacer to fit D. You will need to pack the nose cone with clay so it is at least as heavy as the full engine. The center of pressure on this is fairly far forward, so without weight in the nose cone it will be unstable. I haven't flown this yet, so use at your own risk. Things That Could Go Wrong the initial pulse could cause the weight of the nosecone to compress and break the fragile tube, which would shatter and not just bend, and the fincan would fly uncontrolled around and/or away from the launch pad at head level. HIGH RISK OF INJURY the dynamic pressure and vibration during flight could cause it to break apart, allowing the fincan to fly uncontroled and the nose to come down areodynamicly. Watch for falling debris. MODERATE RISK OF INJURY. i have no idea if the tube can handle the pressure of the ejection charge. It could rupture. However, since this would happen at apogee, debris would have to fall further and probably wouldn't be areodynamic. LOW RISK OF INJURY ...and probably more situations I can't predict. And then... it might fly great.