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8152109 |
Method and system for controlling fluid flow in relation to a foil and harnessing energy therefrom
A method and system 10 for controlling fluid flow 12 in relation to a body or foil 14. The system 10 has one or more channels 16, at least some of which having an inlet port 18 and an outlet port...
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8152465 |
Rotor blade for a rotor airplane
A rotor blade comprises an inner rotor blade root area, a rotor blade main area disposed adjacent to the inner rotor blade root area along a length of the rotor blade and having an aerodynamically...
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8136766 |
Frangible fasteners for aircraft components and associated systems and methods
Frangible fasteners and associated systems and methods are disclosed herein. In one embodiment, for example, an unmanned aircraft can include a fuselage portion, a wing portion, and a winglet...
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8128035 |
Winglets with recessed surfaces, and associated systems and methods
Winglets with recessed surfaces, and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a wing having an inboard portion and an outboard...
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8096513 |
Aerodynamic flap of an aircraft having a device which influences the flap vortex
A high-lift flap of an aircraft is provided having a device for influencing the flap vortex as well as a device for influencing the flap vortex at the lateral edge of the aerodynamic high-lift...
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8083185 |
Aircraft wing tip having a variable incidence angle
An embodiment of an aircraft wing includes a main wing section and a variable incidence wing tip. The main wing section is adapted to connect to an aircraft fuselage at a first angle of incidence....
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8061661 |
System and method for reducing airfoil vortices
A system and a method according to the invention reduce wake turbulence of an aircraft in that a component affixed to the extremity of the wing of an aircraft disturbs the rolling action of the air...
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7997538 |
Aerodynamic fan control effector
A fan control effector for an aircraft comprises at least one blade configured to be pivotably deployable in a radially outward direction from a retracted position to a deployed position such that...
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7988100 |
Wing tip device
An aircraft includes a wing having a positive dihedral, the wing having a tip and a wing tip device mounted in the region of the tip. The wing tip device is generally downwardly extending and has a...
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7988099 |
Winglet
A winglet for an aircraft wing is provided. The winglet has an airflow control arrangement, for example in the form of a trailing edge flap (20) by means of which lift generated by the winglet can...
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7971832 |
Wing tip devices
A tip device to act as an outboard continuation of an aircraft wing or other aerodynamic lifting surface has a downward cant angle, a leading edge swept back in relation to the leading edge of the...
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7946535 |
Highly efficient supersonic laminar flow wing
An improved supersonic laminar flow wing structure, on a supersonic aircraft, having one or more of the following: a strake extending forwardly of the wing inboard extent, a raked wing tip, a...
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7905061 |
Wind spoiler for roofs
A wind spoiler including a vertical member mounted vertically along a roof of a structure to extend above the plane of the roof for creating turbulence in wind flowing over the roof.
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7900877 |
Active winglet
An active winglet includes a body portion substantially parallel to a wing of an aircraft, as if it were an extension of the wing, and an angled portion that projects at an upward angle from the...
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7900876 |
Wingtip feathers, including forward swept feathers, and associated aircraft systems and methods
Tip feathers, including forward swept tip feathers, and associated aircraft systems and methods are disclosed. A system in accordance with one embodiment includes an aircraft wing having an inboard...
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7874524 |
Methods and apparatus for a multi-segment flap fence
A multi-segment flap fence is incorporated into the wing such that a lower fence structure is attached to the underside of the fixed wing, an upper fence structure is attached to the main flap...
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7753316 |
Deployable flap edge fence
A method and systems are disclosed for reducing fluid flow noise. The method and systems use a thermal mechanism to deploy a flap edge fence during landing and/or other operating conditions, and...
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7744038 |
Controllable winglets
Systems and methods for providing variable geometry winglets to an aircraft are disclosed. In one embodiment, a winglet includes a base portion configured to attach to a wing. The winglet further...
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7644892 |
Blended winglet
A capped winglet comprising a helical portion having a smooth vertical curvature of 180°±approximately 20° from the plane of the unbounded end of a wing, and a generally planar cap contiguous wi...
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7624951 |
Aircraft with antennas mounted on the tops and bottoms of aerodynamic-surface extensions
An aircraft has a fuselage and a pair of wings joined to the fuselage at a dihedral angle. A wing extension, such as an angled winglet or a wing-tip pod, is joined to a distal end of each of the...
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7520470 |
Aircraft configuration with improved aerodynamic performance
An aircraft (10), in particular a trainer aircraft with improved aerodynamic performance, having a configuration able to keep a directional stability and a very good aerodynamic behaviour even at...
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7497403 |
High efficiency tip vortex reversal and induced drag reduction
Methods for increasing the performance of a foil (100) by using tip droop (102) having an inward directed camber capable of generating an inward directed lifting force on the tip droop (102) in...
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7475848 |
Wing employing leading edge flaps and winglets to achieve improved aerodynamic performance
A wing for use on a supersonic aircraft that includes an inboard section a central section of the wing outboard of the inboard portion, and an outboard section. The outboard section can be a...
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7322546 |
Performance airplane wing with tip tank assembly
The present development relates to an improved wing having a tip tank assembly. The tip tank assembly is attached to a distal end of an outer wing section. The tip tank assembly includes a tank, a...
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7316371 |
Method and device for steepening a landing approach of an aircraft
To control and particularly steepen the landing glide path of an aircraft, a respective aerodynamic component mounted on each wingtip includes a fixed plane member and a pivotable control element...
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7100867 |
Lifting foil
A lifting foil for an aircraft, a hydrofoil or the like having a pair of courses or wings. Vortex losses due to spanwise fluid flow are substantially reduced by joining the tips of the courses with...
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6892988 |
Cylindrical wing tip with helical slot
A device having the form of a cylindrical spiral cavity and/or incorporating a helicoidal slot, making it possible to reduce induced drag and marginal swirl (vortex) and increase drag/lift ratio....
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6722615 |
Wing tip extension for a wing
The present invention relates to a wing tip extension (7) for a wing, having an upper and a lower surface (10 and 11) and a leading edge and a trailing edge (12 and 13), the geometries of which are...
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6589017 |
Aircraft airfoil assembly and method
An aircraft rotatable airfoil assembly in the nature of a helicopter machine and having two airfoils diametrically disposed about an axis of rotation. Air baffles are mounted on the radially inner...
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6497600 |
Automatic pilot system for model aircraft
An automatic pilot system for a model airplane comprising one or more flexible control elements. When installed on a vertical stabilizer of the airplane, a flexible control element acts as an...
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6484968 |
Aircraft with elliptical winglets
An aircraft with swept back wings has winglets (202) at the outer ends of its wings (200). The winglets (202) curve upwardly as they extend outwardly from their intersection (204) with the wings...
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6467732 |
Rotary blade of helicopter
A base wing 11, as attached at its root end portion to the rotor head of a rotational drive unit, is provided with a front wing 12 and a rear wing 13 having substantially equal spans. The vortex,...
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6431499 |
Wing comprising a distal wing grid
In a wing with a main wing part (1) and a drag-reducing wing grid arranged at a distal end of the main wing part, a grid includes at least two winglets (2) staggered in parallel and with an overlap...
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6345790 |
Subsonic aircraft with backswept wings and movable wing tip winglets
A subsonic aircraft having backswept lifting wings is equipped with individually rotatable winglets at the wing tips thereof, in order to reduce drag during cruise flight, to minimize the dangers...
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6260809 |
Ovate loop for rotary-wing blades
Blade vortex interaction (BVI) noise, associated with the operation of aircraft having rotary-wing blades, is abated by the inclusion of an ovate loop tip (20) at the tip portion (16) of each of...
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6171056 |
Technique for providing a signal for controlling blade vortex interaction noise of a rotorcraft
A technique for providing a signal representative of blade vortex interaction (BVI) noise for a multi-blade rotorcraft. The fluid (air) pressure at one, two, or more predetermined locations on a...
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6161797 |
Method and apparatus for reducing airplane noise
A modification of a 727 airplane, including a change in wing profile, to affect flight characteristics and the engines to lessen noise, such that the takeoff and landing procedure is modified so...
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6042059 |
System and method of vortex wake control using vortex leveraging
This invention relates to a system and method for reducing the primary vortex wake structure generated by a lifting body mounted on an object moving through a fluid. This is achieved by first,...
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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...
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5806807 |
Airfoil vortex attenuation apparatus and method
A vortex attenuating airfoil (24) includes an outboard area (28). The outboard area includes a deflector (40) which is disposed in the inboard direction from a tip (30). An air passage (46) extends...
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5738298 |
Tip fence for reduction of lift-generated airframe noise
The present invention is directed toward a unique lift-generated noise reduction apparatus. This apparatus includes a plurality of tip fences that are secured to the trailing and leading assemblies...
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5496001 |
T-38 aircraft modified with an F-5 wing
A T-38 trainer aircraft that is modified to have the wings of an F-5 fighter aircraft. The F-5 wings have leading edge flaps which increase aircraft maneuverability and allow the plane to be landed...
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5435502 |
Flying and road vehicle
A vehicle will serve as a road vehicle, as well as can be flown. The vehicle has a fuselage and a wing with a fixed span. The aspect ratio is low, allowing the vehicle to be operated on a normal...
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5407153 |
System for increasing airplane fuel mileage and airplane wing modification kit
A system is provided which enables winglets to be added to existing wing structures of 727 model aircraft to increase fuel efficiency while providing a means for redistributing additional loads...
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5348253 |
Blended winglet
The blended winglet is a wing-like device comprising a blended lifting surface attachable to each airplane wing tip so as to achieve minimum induced drag for a given surface size. The device...
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5275358 |
Wing/winglet configurations and methods for aircraft
A wing/winglet configuration, which basically comprises: (a) a wing having upper and lower wing surfaces, a wing leading edge, a wing trailing edge, and a wing tip; and (b) a winglet having upper...
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5213287 |
Wing modification method and apparatus
A modification kit for the DeHavilland DH-2 Beaver and the DH-3 Otter aircraft. A replacement leading edge is provided for the wing together with replacement droop wing tips and a wing fence. A...
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5156358 |
Aircraft outboard control
An outboard control surface for an aircraft. The control surface is operably connected to wing side edges of the aircraft and includes a forward flap and a rearward flap with at least one of the...
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5102068 |
Spiroid-tipped wing
The spiroid-tipped wing, in its basic form, comprises a wing-like lifting surface and a spiroidal tip device (i.e., spiroid) integrated so as to minimize the induced drag of the wing-spiroid...
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4781341 |
Flying wing aircraft
An ultralight aircraft having a generally rectangular, swept-back, single-surface wing. The wing, which is formed by fabric mounted on exposed spars and ribs, has a reflex profile to provide pitch...
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