being primarily used during mining operations, however they are also popular as modified weapons platforms on the second-hand market. The TSMEU-6 is long with a wheel diameter of and four retractable legs for navigating difficult terrain. With the legs retracted the wheel bike has a maximum speed of , while in walking mode the bike can only attain . Overall the bike has enough fuel to travel . While normally carrying a driver and passenger, Grievous' bike has had the passenger seat replaced with a heavy double laser cannon; both seat and cannon remain stable while the wheel rotates around them. Wookiee flying catamaran Wookiee flying catamarans appear in Revenge of the Sith. They were originally conceived as strictly water vehicles. The addition of a rotor came late in production; some printed works do not depict this component. Wookiee ornithopter Wookiee ornithopters appear in Revenge of the Sith. The craft was originally known as the "dragonfly helicopter". Although mostly depicted through computer-generated imagery, a full-size mockup of the gunner's seat was created for a closeup of the tail gunner. Vehicles appearing in other Star Wars media Imperial Assault Tank The Imperial Assault Tank is a ground vehicle which made its theatrical debut in Rogue One: A Star Wars Story patrolling the streets of Jedha's Old City and has appeared in other media including Star Wars Rebels. The life-sized model which appeared on the Rogue One set was based on a heavily modified flatbed Alvis Stormer piloted by experienced tank operators. Although the tank had initially been intended to be a hover vehicle, it was decided to keep the treads after production. Official sources identify the vehicle as the TX-225 "Occupier" combat assault tank manufactured by Rothana Heavy Engineering for the Galactic Empire. Measuring long and high, this ground assault vehicle (GAV) can reach a top speed of on open roads and is crewed by a tank commander, driver, and gunner/technician. Its armament includes a pair of elevating twin Dymek Mk2e/w medium laser cannons for antiarmor & antiaircraft use and a forward-locked twin Dymek MK 2e/w medium laser cannon for antipersonnel use. Composite laminate armoring makes the tank remarkably resilient without overtaxing its propulsion system. Two variants of the "Occupier" are employed by the Empire: the standard TX-225 GAVw utilizing a continuous track which makes it highly maneuverable in urban environments, and the TX-225 GAVr which hovers slightly above the ground