This is a 2 stage cardon fiber rocket me brother and I built for Mudrock 2011. It stands 10' 10" tall and was launched on K550 t' J415. Ya scallywag! On board was a small HD camera and a GPS tracker/transmitter. Well, blow me down! T' second stage failed t' light due t' an electrical problem, but t' redundant electronics brought her home safely t' try again another day.