Thingiverse
Parabellum Rocket -- spins in flight, looks like a TOW missile by SkyRider
by Thingiverse
Last crawled date: 4 years ago
I originally built this the traditional way, but it took so much abuse it eventually fell apart. Now, V2 is all plastic. Print this in 0.3mm resolution at 50% infill and you have a mean looking rocket. This has its fins slightly canted to have an initial angle of attack. Once the rocket has accelerated past the launch rail it should start to spin. V1 flew beautifully, V2 should also. If you want one printed, I can be convinced to make kits of these for a small fee.
Update 11/25/2013: I added a few enhancements...First, when I assembled my rocket and weighed it, it was at 6.7oz, which is well beyond the max takeoff weight for a C6-5 engine (4oz max). So clearly I needed a D engine, but rather than mess with the design, I added an extension to mount a D motor, which has a max lift capacity of 14oz. This approach lets me keep the CG forward and the rocket looks even more like a TOW. And, the engine mount has a slot for the engine hook. With the mount you should not go past 10oz which keeps you inside the flight envelope, but be warned, it's gonna go....Also, don't bother with a C11-3, as that still has you at the bottom end. Finally, I added some rails to give the joined tubes some external support. I used a particularly potent type of CA glue and used some ground plastic as filler. Once filed, the gaps are gone and it's going to look fabulous when painted. Shame if it vanishes in the sky.
Update 11/25/2013: I added a few enhancements...First, when I assembled my rocket and weighed it, it was at 6.7oz, which is well beyond the max takeoff weight for a C6-5 engine (4oz max). So clearly I needed a D engine, but rather than mess with the design, I added an extension to mount a D motor, which has a max lift capacity of 14oz. This approach lets me keep the CG forward and the rocket looks even more like a TOW. And, the engine mount has a slot for the engine hook. With the mount you should not go past 10oz which keeps you inside the flight envelope, but be warned, it's gonna go....Also, don't bother with a C11-3, as that still has you at the bottom end. Finally, I added some rails to give the joined tubes some external support. I used a particularly potent type of CA glue and used some ground plastic as filler. Once filed, the gaps are gone and it's going to look fabulous when painted. Shame if it vanishes in the sky.