| 摘要 |
The vehicle has front and rear sets of wheels (24) carried on sprung arms (20). Each wheel can be locked by a clutch (26). One set of wheels is locked while a ram (32) is operated, causing the other set of wheels to roll forward. The main body (10) of the vehicle can be rotated relative to the wheels (24) by means of a motor (48) operating via a drive belt (50). The interior of the body (10) is pressurized with inert gas, suitably nitrogen exhausted from the propulsion system which is vented by a one-way valve 38. |
