Abstract: A device to facilitate transporting an injured person or cargo over rough terrain having an elongated rigid load bed riding on adjustable air-sprung suspension over a wheel assembly having a narrow track. The device includes handles extending from each end which can be used to control the device during movement or which can by folded down to provide vertical supports to maintain a stable stationary unattended position. The air suspension is utilized to actively raise and lower the device to facilitate changing between movable and stationary configurations. Brakes are provided on the wheels for control while descending, independent of the security of the footing of the operator(s). The device also provides for being towed utilizing a universal-joint connector to a towed vehicle which allows flexibility of the connection but prevents torsional movement and maintains side-to-side stability of the towed device.

Abstract: A device to facilitate transporting an injured person or cargo over rough or awkward terrain and by providing an elongated rigid load bed, a narrow wheel or ski assembly track and an actively adjustable air-sprung suspension with adjustable ride height. The device provides handles which can be used to control the device during movement or which can by folded down to provide supports to maintain a stable stationary unattended position. Brakes are provided on the wheels so that control while descending is not dependent entirely upon the security of the footing of the operator. The device further comprises arms extending from each end of the load bed, said arms being movable to provide configuration for transport of the load, for storage of the device and for providing stable support for the bed. The suspension is utilized to actively raise and lower the device to facilitate changing between configurations.