Video o' me wife's high power rocket, Isis, launched on a Cesaroni H400 Vmax motor at Bayboro, NC in January 2011. Aye aye! Blimey! Engine burn time is 0.64 seconds. Motor burnout happens at about 186 feet. Avast, me proud beauty! Blimey! T' rocket then continues coastin' for about 9.8 seconds until it reaches around 2256 feet before ejectin' t' parachute.