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7971823 |
Saucer shaped gyroscopically stabilized vertical take-off and landing aircraft
An aircraft that is housed within a gyroscope providing for improved flight stability that includes an inner hull which remains stationary within a rotating outer hull. A rotating sine-wave ring is...
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7918415 |
Convertible aircraft operating method
The invention relates to a convertible aircraft operating method. According to the invention, the aircraft comprises: a fuselage, standard fixed wings which are equipped with ailerons, a tail unit...
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7815144 |
Ground air water craft
A vehicle that can operate as either a motorcycle or an autogiro, said vehicle having a flight mode and a motorcycle mode, said vehicle comprising: a frame having a front part and a rear part;a...
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7677491 |
Methods and apparatus for airborne systems
In various representative aspects, an airborne delivery system according to various aspects of the present invention comprises a container and an autorotating rotor system. The container may...
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7448571 |
Rotor collective pitch VS Mu to control flapping and mast/rotor tilt to control rotor RPM
A method of operating a rotor aircraft involves measuring an airspeed of the aircraft and a rotational speed of the rotor. A controller determines a Mu of the rotor based on the airspeed of the...
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7178757 |
Motorcycle rider autogyro
An autogyro, or aircraft with a rotating wing, has an airframe providing a motorcycle-like configuration for the rider. The motorcycle-like straddle-type seat locates the rider in front of the...
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6824093 |
Method of controlling pitch on a gyroplane and a gyroplane
A method of controlling pitch on a gyroplane. A first step involves pivotally securing a wing to a mast supporting a rotor of the gyroplane. A second step involves providing a linkage between the...
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6513752 |
Hovering gyro aircraft
A fixed wing rotorcraft uses differential thrust between wing mounted propellers to provide counter torque when the rotor is being powered by a power source. The rotorcraft is comprised of a...
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6471158 |
Vertical take-off and landing vehicle configured as a compound autogyro
A compound autogyro has a unique system of rotor blade retraction and vectored thrust. Redundant thrust systems provide for emergency conditions. Located in the upper mast are twin gas lines...
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6435453 |
High speed rotor aircraft
An improved method of operating rotorcraft capable of achieving high speeds such that stability is maintained as the craft speed exceeds 0.75 times the rotor tip speed. These high speeds are...
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6405980 |
Control system for rotor aircraft
A rotor aircraft has an adjusting mechanism that controls the sensitivity of the control stick relative to fore and aft tilt of the rotor. The control stick is pivotable between fore and aft...
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6402088 |
Passenger vehicle employing a circumferentially disposed rotatable thrust assembly
A vertical take-off and landing vehicle that employs a thrust assembly, a fuselage, and an intermediate rotation decoupling interface assembly for rotationally decoupling the thrust assembly from...
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6398159 |
Arial disk
An aircraft comprising a body and a plurality of disks rotatably coupled to the body. The disks may be configured to (i) rotate in the same or different directions, (ii) rotate at similar and/or...
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6089501 |
Tandem-rotor gyroplane
A tandem-rotor autogiro has a control system that facilitates operation of the tandem-rotor autogiro by fixed-wing aircraft pilots, without the requirement of extensive additional flight training....
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6062508 |
Compound aircraft
A lift rotor assembly for a compound aircraft having a fuselage, including at least one circular disk structure with a plurality of bladelets spaced peripherally thereabout, a drive shaft coupled...
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6064923 |
Aircraft with reduced wing structure loading
An aircraft having a reduced-load wing structure is provided with a controllable canard stabilizer (5G, 5D) at the front end of the aircraft and a controller that controls the canard stabilizer....
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6030177 |
Drive system for a variable diameter tilt rotor
A drive system for a variable diameter rotor system that includes a plurality of rotor blade assemblies with inner and outer blade segments. The outer blade segment being telescopically mounted to...
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6019578 |
Variable diameter rotor blade actuation system
A rotor blade actuation system is disclosed for controlling extension and retraction of an outboard blade section of a rotor blade by varying the speed and direction of rotation between a main...
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5951608 |
Flight control system for jet powered tri-mode aircraft
The disclosed flight control system includes a rotor blade speed monitor for monitoring the rotor blade speed of the jet powered tri-mode aircraft and for outputting a rotor blade speed command....
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5544844 |
Autogyro aircraft
An autogyro has a teetering semi-rigid rotary wing with rigid rotor blades. The angle of attack (blade pitch) of the rotor blades is fully adjustable in flight continuously over an operational...
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5454530 |
Canard rotor/wing
A dual-mode high speed rotorcraft is disclosed which combines the efficiency of a helicopter with the high-speed capability of a fixed wing aircraft. The rotorcraft includes a rotor for propulsion...
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5421538 |
VTOL aircraft
A vertical takeoff and landing heavier-than-air aircraft that includes a gyroscopic airfoil in the airstream of a ducted fan to cause vertical lift to the aircraft. The gyroscopic foil is both...
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5098033 |
Gyroplane with tilting mast
An improvement in a gyroplane having a keel, a mast which extends from the keel, and a rotor blade which rotates at the top of the mast. The improvement consists of a forshortened mast extending...
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5058825 |
Steering aid for rotor aircraft
Aircraft supported by rotors have an elastic device (28) that helps to angularly place the body of the aircraft in relation to the rotation axis of the rotor (1). This device has adjusting means...
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4979698 |
Rotor system for winged aircraft
A rotor system for a rotor convertible fixed winged aircraft comprising a rotatable rotor shaft mounted on one of the wings of the aircraft, the shaft tiltable between a substantially vertical...
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4913377 |
Devices which may be borne in air and on devices applicable therein
An air-borne craft is provided with at least two pairs of propellers with substantially vertical axes. One pair of the propellers is provided on the front portion of the craft, the other pair on...
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4913376 |
VTLH autogyro
This invention relates to autogyros and to counter-rotating rotor helicopters. It further relates to compound autogyros and/or helicopters that employ a lifting surface or wing in forward flight....
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4765567 |
Helicopter target
A remote-controlled autogyro visually and functionally simulates a helicopter with stub wings (e.g. the Hind D), so that an expendable helicopter-simulating target is produced. The target has a...
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4469294 |
V/STOL Aircraft
A V/STOL aircraft comprising a fuselage, having three sets of wings that are offset lengthwise and vertically. The center set of relatively small relatively thick wings 34 between the canard 14 and...
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4434956 |
Flexible helicopter rotor and pitch control mechanism
A flexible helicopter rotor includes a vertical rotor axle, a mechanism for rotating the vertical rotor axle in a first rotational direction, and a plurality of segmented flexible airfoils secured...
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4335537 |
Toy aircraft
A toy aircraft having a rotatable wing assembly having at least two blades of aerofoil cross-section extending radially outwardly from the axis of rotation of the assembly, each blade having a zero...
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4195800 |
Autogyros
Autogyro rotor comprises blades radiating outwardly from central disc structure. Disc structure extends over substantial part of the area of the rotor to increase lifting forces provided by rotor...
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4184654 |
Rotor aircraft
An aircraft useful as a toy or as a personal craft which includes a plurality of blades freely rotatably mounted on a spherical body supported by landing means. The blades are hinged onto arms to...
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4071206 |
Portable helicopter
A basic lightweight helicopter frame is strapped to the body of a pilot and includes vertical side bars interconnected above the pilot's head to rotatably support a bladed rotor assembly and carry...
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4059247 |
Convertiblade
An aircraft which operates between the surface and the air as a rotating wing aircraft (helicopter-autogiro). When airborne a rotor pylon latch is released and the pilot flies the rotor system aft...
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3870251 |
AUTOGYRO
This invention relates to an improved design for autogyros. It involves a more desirable layout of cockpit/engine placement than heretofore thought of. It provides for improved efficiency,...
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3794273 |
VTOL ROTOR WING DRONE AIRCRAFT
An aircraft capable of vertical take-off and landing and high speed cruis flight, utilizing a combine rotary and fixed wing. The wing has a large center body with three radial arms which are...
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3771923 |
AUTOGYROS, ESPECIALLY PERMITTING THE USE OF THESE DEVICES AS ECONOMICAL AIRGROUND VEHICLES
Improvements in the rotor system of autogyros permitting the easy folding back of the rotor blades and to ensure the coincidence of the blade axes in a single point. A smooth ball and socket joint...
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3477663 |
AIRCRAFT OR TOWED GLIDERS
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3149802 |
Autogiro
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2931132 |
Toy helicopter
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