My level 3 certification flight at Lake Louise, AK. The rocket went to 12,500 ft in altitude, and a max speed of Mach 1.2. The rocket itself is made from an Extreme Wildman kit, with a custom machined aluminum fin-can made by me. The fins are from Binder Design. The motor used was an Aerotech M1500G.
You can find a build log of the rocket here on The Rocketry Forum: