Abstract: An apparatus (1) that can be converted into an air cushion support or into an air cushion support for a vehicle (3). This apparatus can be folded into a compact container or put onto its own wheels (2) permitting it to be hauled as a trailer. The apparatus comprises a latticed folding base composed of hingedly connected main sections (10) and perimeter sections (11-14), a flexible inflatable air cushion skirt (5) and coupling means (8,9) for coupling the vehicle (3) to the main sections of the base, to propulsion and blowing means (6) and to a steering gear mechanism (7). The lower surface of latticed sections is covered by elastic airtight sheet material (33,34) which forms a chamber (35) of the flexible inflatable skirt and an air cushion chamber (37).