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