Abstract: An air-based thrust recovery system for use in a powered lift platform utilizing fixed-pitch propellers is provided. The system utilizes an air compressor coupled to the drive motor of the platform and an on-board, high pressure tank for air storage. The fixed-pitch propellers are coupled to the primary drive system with over-running clutches, thus allowing the thrust recovery system to rotate the propellers faster than if driven solely by the primary drive system. Preferably the propellers are surrounded by air ducts. The thrust recovery system uses individually, or in combination, cold air jets mounted at the tips of the propellers, a circulation control system which blows out the leading or trailing edge of the propellers, and one or more perforated tubing segments surrounding at least a portion of the platform's air ducts.

Abstract: An air-based thrust recovery system for use in a powered lift platform utilizing fixed-pitch propellers is provided. The system utilizes an air compressor coupled to the drive motor of the platform and an on-board, high pressure tank for air storage. The fixed-pitch propellers are coupled to the primary drive system with over-running clutches, thus allowing the thrust recovery system to rotate the propellers faster than if driven solely by the primary drive system. Preferably the propellers are surrounded by air ducts. The thrust recovery system uses individually, or in combination, cold air jets mounted at the tips of the propellers, a circulation control system which blows out the leading or trailing edge of the propellers, and one or more perforated tubing segments surrounding at least a portion of the platform's air ducts.

Abstract: A collapsible, reusable, livestock transport stable with interchangeable components that can be constructed without tools. The stable includes several types of component parts, with like parts each being interchangeable and useable in any position where such a part is needed. The first of those component parts is a platform which serves as the base of the stable. Next, there is a pair of side panels, each of which is rotatably attached to the side edges of the platform for providing the vertical sides of the stable. Interconnecting the two side panels is an aft panel. The aft panel is isntalled by resting its lower edge along the aft edge of the platform, its two vertical edges are captured by the side panels when the side panels are in the vertical attitude. The doors are attached to the forward edges of the side panels to provide closure of the stable.