Class 244/48 - Incidence

Subclass of Class 244 - Aeronautics and astronautics
Definition: Sustaining airfoils so arranged that the angle between their
No. of patents: 74
Last issue date: 03/06/2012

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Number	Title	Issue Date
8128020	Active twisting of an aircraft lifting surface via modulated clamping of substructure A system and method for enabling controlled twisting of a tip of a wing in response to the aerodynamic forces experienced by the wing. The structural stiffness of the wing is modulated to modulate the twist of the wing in the presence of aerodynamic forces. ...	03/06/2012
7637454	Apparatus and method for controlling twist of a wing of an airborne mobile platform An airborne mobile platform may have a wing having a length and a chord wise dimension, and a plurality of elongated structural components extending span-wise along the length of the wing. The elongated structural components may each have a localized hinge area. A d...	12/29/2009
7441724	System and method for controlling a roll rate of a torsionally-disconnected freewing aircraft An aircraft includes a fuselage, and first and second freewings. Each of the first and second freewings is separately mounted to the fuselage and independently freely pivotable about respective pivot axes. The aircraft includes an angular rate sensor configured to m...	10/28/2008
7364114	Aircraft The present invention concerns an aircraft having a plurality of lifting and thrust rotors, with an electric motor and an inverter for each motor. In order to provide an aircraft having a greater payload, connecting bars are provided between the motors. In that resp...	04/29/2008
7357358	Aircraft leading edge device systems and corresponding sizing methods Aircraft leading edge device systems and methods for sizing such systems are disclosed. In one embodiment, a spanwise lift coefficient distribution for an airfoil corresponding to at least one design condition and at least one aircraft angle of attack is identified,...	04/15/2008
7278606	Helicopter having a fusilage section and a tail section coupled thereto A helicopter having: a flow control device provided at one of a lower portion of a side surface of a fuselage and a portion on a lower surface of the fuselage near the side surface and extending downward. ...	10/09/2007
7262394	Mortar shell ring tail and associated method There is provided a ring tail for a ballistic projectile and an associated method that facilitate maneuverability of the ballistic projectile. The ring tail comprises a ring member having a generally cylindrical wall and at least one rod joined to an aft section of ...	08/28/2007
7198225	Aircraft control system A solar rechargeable, long-duration, span-loaded flying wing, having no fuselage or rudder. Having a two-hundred foot wingspan that mounts photovoltaic cells on most all of the wing's top surface, the aircraft uses only differential thrust of its eight propellers to...	04/03/2007
7185538	Methods and systems for sensing air vehicle airspeed A system for determining airspeed of an air vehicle is described which includes and airflow sensor and a processor. The airflow sensor is located within an airflow path extending substantially through the air vehicle, and the processor is configured to receive a sig...	03/06/2007
7182666	Wing-attachment mechanism for a model airplane A mechanism for attaching a wing to a fuselage of a model airplane. The mechanism includes a mounting base, a wing bolt, a retaining device that holds the wing bolt in the mounting base, and a flexible support member positioned between the retaining device and the m...	02/27/2007
7131613	High-altitude launching of rockets lifted by helium devices and platforms with rotatable wings A system is disclosed for lifting a rocket into the upper atmosphere and establishing forward flight at several hundred miles per hour, before the rocket engines are ignited and the rocket is released from the lifting system. The main subassemblies of this lifting s...	11/07/2006
7131611	Device and method of control of fixed and variable geometry rhomboid wings Provided is an aerodynamic body having rhomboid wings and internal torsion bars which can be twisted to affect a change in the shape of a wing. Individual or multiple swings can slide relative to the fuselage body to affect a change in sweep angle and aspect ratio. ...	11/07/2006
7121780	Multiple load path fastener systems Dual load path fastener systems, and methods for their use, are described herein. In one embodiment, a dual load path fastener system includes first and second fasteners. The first fastener has a first end portion, a second end portion spaced apart from the first en...	10/17/2006
7070145	Tailboom-stabilized VTOL aircraft A disclosed flying craft includes a suspension structure having a first end and a second end, a lift unit, and a payload unit. The lift unit includes a nacelle and a tailboom, and pivotally couples to the first end of the suspension structure, and a payload unit cou...	07/04/2006
7059562	Vertical lift flying craft A disclosed vertical lift flying craft includes a lift unit that, during operation, develops a force including an upward component. A payload unit suspends from the lift unit. The payload unit suspends from the lift unit in such a way as to impart lateral stability ...	06/13/2006
7048227	Parachute supported aircraft with controlled wing collapse and inflation This invention relates to a parachute supported aircraft having a frame and a seat for supporting at least a pilot. A parachute is coupled to the frame by a plurality of riser lines for allowing the parachute to inflate and form a wing for lifting the frame. A pair ...	05/23/2006
7044422	Gyrostabilized self propelled aircraft An unmanned air vehicle comprises a fuselage that defines aerodynamic flight surfaces, an engine mounted to the fuselage having an engine shaft arranged to rotate about a longitudinal axis with respect to the fuselage, and a propeller mounted to the engine shaft so ...	05/16/2006
6951322	Personal aircraft device A personal aircraft device (“PAD”) and a powered personal aircraft device (“PPAD”) configured to be ridden and/or releasably connected to a person or user. The personal aircraft device can be configured to provide a large array of maneuvers during sky diving...	10/04/2005
6938856	Empennage assembly and attachment mechanism for a model airplane An empennage assembly for a model aircraft. The empennage assembly includes a fuselage having a bottom portion with an opening and a housing positioned in the opening in the bottom portion of the fuselage. The housing has a first end defining an opening and a second...	09/06/2005
6929216	Method and apparatus for installing and actuating movable airfoils, including canards Methods and apparatuses for installing and actuating movable airfoils, such as canards. A canard in one embodiment of the invention includes an airfoil positioned external to an aircraft fuselage. The airfoil can include a first portion and a second portion (such as...	08/16/2005
6931247	Aircraft control method This disclosure provides a solar rechargeable aircraft that is inexpensive to produce, is steerable, and can remain airborne almost indefinitely. The preferred aircraft is a span-loaded flying wing, having no fuselage or rudder. Traveling at relatively slow speeds, ...	08/16/2005
6698688	Apparatus and methods for actuating rotatable members Apparatus and methods for actuating rotatable members are disclosed. In one embodiment, an assembly for actuating a rotatable member includes an extendible actuator having a first end and a second end, and a drive member having a first portion pivotally c...	03/02/2004
6641084	Solid oxide fuel cell as auxiliary power source installation in transport aircraft An auxiliary power unit (APU) for an aircraft utilizing solid oxide fuel cells for providing electrical power. The solid oxide electrolytes of the fuel cells allow for reformed fuel to provide a catalyst for oxygen migration. The auxiliary power unit, uti...	11/04/2003
6367736	Convertiplane A convertiplane having a wing in turn having two halfwings, each defined by a fixed portion adjacent to the fuselage, and by a movable portion rotating, with respect to the fixed portion, about a beam element extending the full length of the wing; the bea...	04/09/2002
6264136	High efficiency combination wing aircraft The aircraft (20,50,60) combines a low aspect ratio lifting body (21) and a higher aspect ratio wing (30). Horizontal and vertical tail surfaces (26, 24) are connected to the rear of the lifting body (21) by one or more booms (23). The wing (30) is attach...	07/24/2001
6164591	Ground-effect flying boats also applicable to aircraft, drones, and spacecraft A Ground-Effect Flying-Boat system with a special hull producing a very low drag, but high lift, both in the water and in the air. A high pivoting-wing of an auto-stable airfoil, and one or more rear spoilers fitted on the hull-stern of the vessel having ...	12/26/2000
6098922	Lifting-fuselage/wing aircraft having low induced drag A lifting-fuselage/wing aircraft having low drag at a selected cruise condition. The aircraft includes (a) a lifting fuselage having a cross-section constituting an airfoil in a majority of vertical planes taken parallel to the flight direction and an asp...	08/08/2000
6089503	Selectively rotatable and torsionally flexible aerodynamic control apparatus In accordance with the present invention, there is provided an aerodynamic control system which is attachable to an aircraft body and is operable between enhanced control and radar evasive modes. The aerodynamic control system is provided with an aerodyna...	07/18/2000
5941478	STOL/VTOL free wing aircraft with modular wing and tail A mechanism for quickly removing and installing the free wings and/or the tail booms of a freewing aircraft to the fuselage. The fuselage includes a free wing cross tube extending transversely through the fuselage at the spanwise axis, and each of the lef...	08/24/1999
5918832	Wing design using a high-lift center section, augmented by all-moving wing tips and tails An air vehicle defining a plane of symmetry includes a pair of outboard panels which are rotatably mounted on the lifting body of the vehicle and respectively extend in opposite directions from the plane of symmetry. A control system collectively rotates ...	07/06/1999
5901924	Speed enhanced powered parachute A powered parachute or pendulum flying machine which includes a mechanism for shortening the chord length of the parachute wing, a mechanism for shortening the distance between the upper and lower airflow surfaces of the parachute wing, and a mechanism fo...	05/11/1999
5897076	High-efficiency, supersonic aircraft A supersonic flight aircraft having a longitudinally forwardly extending fuselage having an axis in the direction of flight, and a wing, and which comprises the wing extending generally laterally relative to the axis, and having a leading edge angled forw...	04/27/1999
5863013	STOL/VTOL free wing aircraft with improved shock dampening and absorbing means An improved VTOL/STOL free wing aircraft providing damping and absorption of shock landing loads upon landing. A pair of resilient struts is provided, projecting forwardly from the trailing edge of either side of the fuselage when the fuselage is tilted. ...	01/26/1999
5823480	Wing with a wing grid as the end section A wing with a wing span (b) has a main part (1), which has a substantially closed surface with respect to the flow (v) and is provided at its free end with an end section in the form of a wing grid. The wing grid has at least two parallel-staggered wingle...	10/20/1998
5823468	Hybrid aircraft A hybrid aircraft is taught having VTOL, R-VTOL and S-STOL capabilities. The aircraft has a lifting body hull and four wing sections arranged in tandem which are pivotally moveable about their neutral axis. Each wing section has mounted thereon a pivotal ...	10/20/1998
5813628	Lifting-fuselage/wing aircraft having low induced drag A lifting-fuselage/wing aircraft having low drag at a selected cruise condition. The aircraft includes (a) a lifting fuselage having a cross-section constituting an airfoil in a majority of vertical planes taken parallel to the flight direction and an asp...	09/29/1998
5769358	Lifting-fuselage/wing aircraft having an elliptical forebody An aircraft having an elliptical fuselage and low skin friction drag. The aircraft includes (a) a lifting fuselage having a cross-section constituting an airfoil in a majority of vertical planes taken parallel to the flight direction, an aspect ratio (AR	06/23/1998
5769359	Active feedback loop to control body pitch in STOL/VTOL free wing aircraft An aircraft control system for controlling an aircraft, particularly a free wing aircraft in low speed or hover regimes. An air speed sensor measures air speed of the aircraft and outputs an air speed signal to a control processor which processes the air ...	06/23/1998
5765777	STOL/VTOL free wing aircraft with variable pitch propulsion means A VTOL/STOL free wing aircraft includes a free wing having wings on opposite sides of a fuselage connected to one another respectively for free rotation about a spanwise access. Improved control upon landing of the aircraft is achieved by utilizing a vari...	06/16/1998
5758844	Vertical/short take-off and landing (V/STOL) air vehicle capable of providing high speed horizontal flight The vehicle includes a fuselage; a plurality of lifting surfaces attached to the fuselage having control devices attached thereto; and, an articulated propulsion system attached to the fuselage. The propulsion system includes a duct assembly pivotally con...	06/02/1998

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Class 244/48 - Incidence