A tethered airboarding system includes an a lifting board an attachment point for a tether line, and a wind generating device. An improved lifting board includes a universal binding connector comprising a removable panel reversibly secured to a receiving element and a binding attached to the removable panel for securely attaching an operator onto the lifting board.

A float has a front-to-back length, a width, and a height where the front-to-back length of the float is strictly greater than the height of the float which in turn is strictly greater than the width of the float. At least a bottom portion of the float is watertight. The float includes an access panel to access the inside of the float. A battery is inside the float and is accessible via the access panel.

A hang glider control device may include a cross bar having a first end, a second end, a central region, a first central arm, and a second central arm. The first central arm and the second central arm may be coupled opposingly to the central region. The first end may be formed by a portion of the first central arm distal to the central region, and the second end may be formed by a portion of the second central arm distal to the central region. The first end of the cross bar may be configured to couple the cross bar to the first upright above the base tube, and the second end of the cross bar may be configured to couple the cross bar to the second upright above the base tube so that the crossbar may be generally parallel to the base tube.

A hang glider control device may include a cross bar having a first end, a second end, a central region, a first central arm, and a second central arm. The first central arm and the second central arm may be coupled opposingly to the central region. The first end may be formed by a portion of the first central arm distal to the central region, and the second end may be formed by a portion of the second central arm distal to the central region. The first end of the cross bar may be configured to couple the cross bar to the first upright above the base tube, and the second end of the cross bar may be configured to couple the cross bar to the second upright above the base tube so that the crossbar may be generally parallel to the base tube.

There is provided an improved weight-shift control flexible wing aircraft and improved systems and methods for recovering or preventing a spiral dive or a stall of a weight-shift control flexible wing aircraft. The aircraft including a frame; a wing assembly defining a flexible sail extending from port to starboard sides of the vehicle, the flexible wing assembly comprising: a wing keel extending from fore to aft ends of the wing assembly; a pair of wings, wherein each side of said pair of wings has a strut coupled to and extending away from the wing keel and defines a leading edge and a trailing edge when the wing assembly is moved though air, wherein the trailing edge of each side of said pair of wings is configured for actuable reversible billowing in at least a portion along a length of the trialing edge.

A system for airboarding and performing stunts behind an aircraft includes a lifting board, a handle, and a tow rope connected to the board and handle. The lifting board may include landing gear, a binding for securing an operator to the board, tail sections for stabilizing the board during flight, and ailerons for facilitating turns and rolls. The system may include a control system integrated into the handle and board that improves the operator's ability to control the board.

A system for airboarding and performing stunts behind an aircraft includes a lifting board, a handle, and a tow rope connected to the board and handle. The lifting board may include landing gear, a binding for securing an operator to the board, tail sections for stabilizing the board during flight, and ailerons for facilitating turns and rolls. The system may include a control system integrated into the handle and board that improves the operator's ability to control the board.

The disclosure pertains to a battery-powered personal flying apparatus comprising a body structure adapted to support and detachably couple user thereto, and a pair of wings rotationally coupled to opposite sides of the body structure. The wings preferably comprise at least a humerus portion and radius portion. The radius portion is configured to rotate relative to the humerus and, during use, the wings mimic the motion of bird flight. The disclosure further pertains to a method of facilitating human flight using the personal flying apparatus comprising the steps of maintaining the user's torso and legs in an inline and generally horizontal position, moving a pair of wings having a humerus rotatably coupled to a radius simultaneously through a wing flight pattern, and repeating the wing fight pattern to maintain flight of the user.

The disclosure pertains to a battery-powered personal flying apparatus comprising a body structure adapted to support and detachably couple user thereto, and a pair of wings rotationally coupled to opposite sides of the body structure. The wings preferably comprise at least a humerus portion and radius portion. The radius portion is configured to rotate relative to the humerus and, during use, the wings mimic the motion of bird flight. The disclosure further pertains to a method of facilitating human flight using the personal flying apparatus comprising the steps of maintaining the user's torso and legs in an inline and generally horizontal position, moving a pair of wings having a humerus rotatably coupled to a radius simultaneously through a wing flight pattern, and repeating the wing fight pattern to maintain flight of the user.

A compact fixed wing aircraft which may be folded or partially disassembled for ease of storage or transport. The aircraft engine(s) may telescopically slide into the fuselage for ease of transport or storage. The aircraft may feature two engines powering separate propellers in a coaxial counter-rotating propeller assembly. The aircraft may feature manufacturing improvements including load bearing truss structures cut from single sheets or plates of metals, the use of high strength metals, or the use of solid polymer sheets as a surface covering.