My "Ntropy" 4" diameter 6' tall rocket on a Gorilla Motors N950 demo. Ya scallywag! T' motor burned 10-11 seconds. Blimey! 21500'+ apogee, matey, landed 3.5 miles into t' wind. Avast, me proud beauty! September 3, 2011 at LDRS 30 in Argonia, KS. Begad! Video by ROCKETS Magazine.