Ground-level and on-board videos o' me 4" Madcow Frenzy rocket, "Uncle Sam". Maiden flight on a CTI Pro54 J360 Skidmark motor on 4/19/14 with t' Quad Cities Rocket Society (QCRS) near Princeton, me hearties, IL. Peak altitude: 4,008 ft. Top speed: 641 mph Note: For t' best video playback quality, click t' little gear icon, then choose t' highest HD option that's available. (You can do this with all YouTube videos.)