US Patent 7249655 Utility truck servicing large airplanes

An all purpose utility vehicle supporting rescue efforts especially directed toward servicing disable airplanes being an entry tube having a cab section and a tail end section. Mechanisms are provided for inclining the tube so that the cab section is elevated to the level of an airliner permitting personnel to enter the lower end of the tube and walk up to the cab section and into the stricken airplane. A gangplank design for joining the cab section to the tail section provides that the floor of the cabin section is always horizontal regardless of inclination of the tail section.