摘要:
The present disclosure relates to a wing. More specifically, aspects of the invention relate to a variable shaped wing movable incrementally between a neutral configuration and a deformed configuration, wherein the wing takes a reflexed camber aerofoil section shape in the deformed configuration. The wing includes a first aerofoil segment and a second aerofoil segment having ends connected or fixed to one another at opposing neutral leading and trailing edges and spaced apart from one another along their lengths across a neutral mean camber line extending between the neutral leading and trailing edges to form a neutral aerofoil section of the wing. One or more actuators deform the wing between the neutral aerofoil section and a reflexed camber aerofoil section, with the first and second aerofoil segments being resilient to bias the wing towards an initial at rest aerofoil section.
摘要:
A multi-purpose expedition vessel having a aluminum alloy hull, where the aluminum alloy hull can have a aluminum alloy hull bottom with a deadrise bow elevated above a waterline, an aft portion comprising a stern, a port side, a starboard side, a central axis between the starboard and port sides. The aluminum alloy hull of the vessel can have a first plurality of lifting stakes secured to the port side of the deadrise bow, and a second plurality of lifting stakes secured to the starboard side of the deadrise bow. The aluminum alloy hull can have at least a first level disposed within the aluminum alloy hull, and the aluminum alloy hull can have a superstructure disposed on it having various structures, such as a stateroom, a steering station, or a floatation roof.
摘要:
A hand held portable sail including a forward spar and a rear spar, said spars being attached near one end of each spar by a lower handle; and a sail material extending between the spars and connected to each of said spars.
摘要:
Drag experienced by a vehicle traveling through an environmental media, such as air or water, may be modified by one or more energy beams which may increase or decrease drag. A control system may be used to actively modulate the drag of the vehicle by selectively transmitting energy beams. Energy beams may include electric pulse signals, pulsed air, piezoelectric, infrared, ultraviolet, laser, optical band, microwave, thermal other known acoustic, electric, optical, or other electromagnetic energy and any combination thereof. This could be a constant or pulsed energy beam and adjusted for the speed and/or vertical lift, frequency, density, angle, pulse and wavelengths experienced by the vehicle. Charged particles may be emitted from the vehicle itself and then utilized in front or behind the vehicle via electric current to improve the boundary layer, boundary flow.
摘要:
A vehicle traveling through an environmental media such as air experiences drag. The drag is actively modulated by energy beams which may either increase or decrease the drag. The energy beams may provide either a chemical, acoustic or electromagnetic energy at a transition region between turbulent and laminar flows or at the leading edge of a laminar flow or in the direction of a crosswind in order to facilitate the respective increase or decrease in drag. Where the energy beams are acoustic or ultrasonic, some or all of the beams may be used to generate an audible signal, in a directional manner, outside the vehicle.
摘要:
A vehicle traveling through an environmental media such as air experiences drag. The drag is actively modulated by energy beams which may either increase or decrease the drag. The energy beams may provide either a chemical, acoustic or electromagnetic energy at a transition region between turbulent and laminar flows or at the leading edge of a laminar flow or in the direction of a crosswind in order to facilitate the respective increase or decrease in drag. If the vehicle is a sailing ship, areas of the sails are selectively roughened or widened to enhance the thrust derived from the wind. Furthermore, the keel or hull of the sailing ship may be modified to improve the hydrodynamic characteristics of the sailing ship. If the vehicle is an automobile, the tires or road surface may be selectively heated to improve the traction of the automobile. Furthermore, the energy beams may be used to facilitate atomization of the air/fuel mixture prior to combustion in an internal combustion engine thereby improving the thrust of provided to the vehicle. Energy beams may be used to generate virtual extensions of a vehicle to enhance traveling efficiency.
摘要:
The invention utilizes a computer-controlled moving band, typically on an airplane, to increase the apparent speed and therefore the lift of any body moving through a fluid. The invention will allow greater precision of control. One benefit is that take-offs and landings can be carried at reduced speeds and with greater loads. This control will also adjust boundary layer to reduce drag due to turbulence thereby allowing more flexibility in wing design.
摘要:
The invention utilizes a moving band, typically on an airplane, to increase the apparent speed and therefore the lift of any body moving through a fluid. The invention will allow take-offs and landings at reduced speeds and allow a greater load. It will also reduce drag due to turbulence thereby allowing a flatter design of the wing, and reducing boundary later separation.
摘要:
A control arrangement (1) for a kite (6) is attached to a boat (2). Without any external control or energy input the control arrangement (1) automatically tracks the movement of the kite (6) as the kite (6) moves relative to the boat (2). The control arrangement (1) ensures that the kite (6) flies so that the line of action (15) of the kite (6) always extends through the centre of lateral resistance (14) of the boat (2). This enables the kite (6) to pull the boat (2) without applying any heeling moment to the boat (2).
摘要:
A fluid dynamic body provides one or more fixed size escapelets through a foil body to reduce the induced and interference drag caused by trailing vortices and similar wake turbulence. The escapelets, which can be provided in both aerodynamic and hydrodynamic structures, such as wings, tail sections; rotary blades, guy wire frames, wing sails, and various underwater keels and wing keels. The escapelets transfer energy from an inlet located in the high-pressure surface of the foil or foil body to an outlet located in the lower-pressure surface, allowing energy that would normally form a vortex at the tip of the foil to be redirected and dissipated in a beneficial way. As a result, drag is reduced and fuel economy is increased. For example, in aircraft, escapelets can increase the authority of ailerons and similar flight control surfaces, allowing aircraft that were not previously spin recovery rated to become spin recoverable.