An apparatus for adjustably attaching a cover to an open-topped vehicle enclosure including a cover attachment member, a plurality of cover attachment clip members and a plurality of rail members attached to the top of a side wall of the enclosure by any suitable means. Further, maximum inflation value Infmax is calculated based on a second formula Ps1). A reflective film is formed on the inclined sidewall or surface to allow light to reflect from the reflective film and to emit the light upward or in a favorable direction with respect to the device, thereby being configured and enabled to improve a light output of the LED and dispense with an additional passivation process. The steering commands are calculated by taking into account the difference between the pilot line angular position and the ship’s angular position and the difference between the pilot line angular turn rate and the ship’s angular turn rate. The controller is operable to deliver an output signal to the stator to start the internal combustion engine. The device includes a housing, a pump for moving air, a nozzle for placing within the container, an air conduit operatively connecting the nozzle and the pump.