T' first free flight o' Unreasonable Rocket's Blue Ball, ya bilge rat, a peroxide monopropellant vehicle. I've seen a lot o' rockets fly, and it's still amazin' t' see one hover on a mostly invisible plume o' steam. Aye aye! Blimey! T' rocket runs on hydrogen peroxide and is controlled by jet vanes in t' engine exhaust. Aye aye! Blimey! unreasonablerocket.blogspot.com Filmed by Ben Brockert o' Masten Space Systems, masten-space.com