An AUV/UUV docking station is provided that is tethered to a wave energy converter that is in turn tethered to a flotation buoy. The AUV/UUV docking station has a cone for directing an AUV/UUV into a charging dock that is rotatable between a horizontal docking position and a vertical charging position such that in the vertical position the docking station and docked AUV/UUV have a reduced profile so as not to interfere with the operation of the wave energy converter. Energy from the wave energy converter is directed to the dock to charge the AUV/UUV.

A fluid-powered generator harvests the inherent energy in a flowing medium, such as wind or water, as it flows along a flexible sail, creating an undulating motion that causes rotation of a crankshaft. The generator comprises a plurality of ribs pivotably connected to a support shaft. Each rib is coupled to the sail and to a crank arm such that when the sail undulates, the ribs and crank arm pivot in the direction of the undulation, causing rotation of the crankshaft. The generator thus converts the linear motion of the fluid to circular motion to produce renewable energy.

A fluid-powered generator harvests the inherent energy in a flowing medium, such as wind or water, as it flows along a flexible sail, creating an undulating motion that causes rotation of a crankshaft. The generator comprises a plurality of ribs pivotably connected to a support shaft. Each rib is coupled to the sail and to a crank arm such that when the sail undulates, the ribs and crank arm pivot in the direction of the undulation, causing rotation of the crankshaft. The generator thus converts the linear motion of the fluid to circular motion to produce renewable energy.

A pneumatic motor has a housing, an axle, and multiple blades. The axle is rotatably mounted in the housing and has multiple blade recesses. The blades are mounted respectively and moveably in the blade recesses. Each blade has an inner side edge. The inner side edge is mounted in a corresponding one of the blade recesses. The inner side edge of each one of at least half of the multiple blades has a straight segment and a rectangular tab. Each one of the blade recesses which holds the blade having the straight segment and the rectangular tab has a bottom having a straight segment and a tab hole.

A pneumatic motor has a housing, an axle, and multiple blades. The axle is rotatably mounted in the housing and has multiple blade recesses. The blades are mounted respectively and moveably in the blade recesses. Each blade has an inner side edge. The inner side edge is mounted in a corresponding one of the blade recesses. The inner side edge of each one of at least half of the multiple blades has a straight segment and a rectangular tab. Each one of the blade recesses which holds the blade having the straight segment and the rectangular tab has a bottom having a straight segment and a tab hole.