The image above shows torque calculations during a benchmark test for a known rocket with a know Cp. Tycho Deep Space II center of gravity and center of pressure. Left: Mach 2 CFD test of Tycho ...

The shiny stainless steel SN3 (short for "Serial Number 3") prototype went through a cryogenic pressure test late Thursday night at SpaceX's Texas facility. It didn't make it out the other side.