The Rocket Mavericks team put together a beauty of a project, aiming for Mach 3 and 100000 ft. altitude, launched in the Black Rock Desert, Nevada. The team is still diagnosing why it created a huge crater instead of leaving the atmosphere... 22 ft. tall  540 lbs Q booster staging at 45K ft. to a P motor (~6x the thrust of a cruise missile booster)