Abstract: A tractor-trailer for hauling a load is provided which is convertible from a conventional steering arrangement to a stinger steering arrangement to maneuver relatively long loads around tighter corners, roundabouts and other obstacles. The tractor-trailer includes a rear wheel assembly with a telescoping reach and a towing tractor including a chassis and a stinger to selectively attach to the telescoping reach of the rear wheel assembly. The stinger is movably coupled to the chassis to move between a stowed configuration for conventional steering and a deployed configuration for stinger steering.

Abstract: A portable tow device (20) for selective attachment to a tow line (24) having a length includes a handle (32). The tow device also includes a locking member (28) rotatably attached to the handle. The locking member includes first and second bearing members (28a) and (28b) and an elongate slot (42). The tow device further includes a lever arm (30) attached to the locking member for selectively rotating the locking member between a locked position, wherein the tow line is clamped between the first and second bearing members for propelling a person along a surface at a rate substantially equal to the rate of the tow line, and an unlocked position, wherein the tow line passes freely through the tow device.