Patent attributes
An air foil structure attachable to a semi-trailer of a tractor-trailer rig is herein disclosed, intended to produce various aerodynamic affects such as reducing turbulence, creating lift, and creating down force. The air foil apparatus is mounted to a trailer chassis and extends upwardly to a height approximately that of the cab portion of the tractor. The air foil apparatus comprises a stationary pedestal structure having a pair of attached vertical hydraulic cylinders which connect to the air foil wing portion. The hydraulic cylinders enable height adjustment of the air foil wing by an operator during transit via a remote controller within the cab area. The angle of the wing may be manually adjusted and secured in position via pivoting trunnion mounts. The current height of the air foil wing is displayed upon the remote controller allowing an operator to effectively lower the air foil wing during transit when approaching height-restricting objects.
