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5312069 |
Propulsion system for an aircraft providing V/STOL capability
The invention is a propulsion system for powering an aircraft in both vertical and horizontal flight modes. In detail, the invention includes first and second gas-driven ducted lift fans mounted in...
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5303879 |
Aircraft with a ducted fan in a circular wing
The aircraft comprises a rotor with a vertical axis arranged in a housing for generating a lift exceeding the weight of the aircraft. The housing is essentially shaped as a circular wing. A first...
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5275356 |
Propulsion system for a V/STOL aircraft
The invention is a propulsion system for powering an aircraft in both vertical and horizontal flight modes. In detail, the invention comprises a gas-driven ducted lift fan mounted in the aircraft...
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5246188 |
Wing turbines in conjuction with propulsion systems for aircraft and helicopters
An aircraft may have vertical take-off and landing capability including a power-generating mechanism, a propulsion-developing mechanism, and laterally extending wings. Each wing includes an...
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5244167 |
Lift augmentation system for aircraft
A lift augmentation system for aircraft which comprises a plurality of propellers parallel to an aircraft wing and inset parallel to and at the trailing edge of the wing. The propellers function to...
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5163638 |
Engine and lift unit for aircraft and new type of aircraft fitted with such a unit
An engine and lift unit for rotary wing aircraft together with means for balancing of the rotational torque of the said wings is shown. The rotational torque is balanced by a blower propeller,...
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5064143 |
Aircraft, having a pair of counter rotating rotors
The aircraft has a pair of rotors driven to counter-rotate within a housing. The housing has adjustable air guiding discuss for the rotor stream and a airfoil-like outer shape to generate lift at...
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5062588 |
Segmented rotatable nozzles
A thrust deflector for use in VSTOL aircraft which has a pressurized gas generator. The thrust deflector consists of a number of adjacent nozzles. Each of the nozzles has a body with a first face...
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5026002 |
Helihover amphibious aircraft
Amphibious aircraft having an aerodynamic wing attached to a main fuselage with a centrally positioned channel flow tunnel under the middle thereof. At least one large diameter in-fuselage ducted...
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4948072 |
Segmented vectoring cruise nozzles
A thrust vectoring structure is provided for VSTOL aircraft having a pressurized gas generator and at least one rearward facing outlet with an opening for discharging pressurized gas from the...
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4768737 |
Helicopter control system
An anti-torque system for use in a helicopter has an aft mounted horizontal fan submerged within a fuselage mounted, upward facing plenum. The fan operates off the mainpower source. The plenum has...
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4757962 |
Amphibious vehicle
An amphibious vehicle comprises a fuselage having a pair of support pods at the front end thereof and a single support pod at the rear. In accordance with one embodiment of the invention, each pod...
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4726545 |
VTOL aircraft having combination lift and lift/cruise engines
By mounting a lift engine and a lift/cruise engine closely to the center of gravity of an aircraft and by orienting the respective engines such that the thrust axes thereof are arranged for...
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4482108 |
Tilt wing short takeoff aircraft and method
A short takeoff and landing aircraft (10) and vertical/short takeoff and landing aircraft (10), having upper surface blowing engines (12, 14) on gull-shaped wings (24, 26) which may be tilted and...
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4474345 |
Tandem fan series flow VSTOL propulsion system
A propulsion system for vertical take off and landing aircraft includes a forward compressor fan (40) and an aft compressor fan (42) downstream of the forward fan and in series flow communication...
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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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3911673 |
V.T.O.L. engine with vertical thrust control
This device consists primarily of a base portion supporting a jet having a large gate valve which is operable by gear means engaging both an electric motor and a compressed air motor, the base...
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3889902 |
Helicopter comprising a plurality of lifting rotors and at least one propelling unit
A multi-rotor helicopter comprising a polygonal platform having mounted symmetrically along its outer periphery a number 2n of short-bladed lifting rotors. These rotors are adapted either to be...
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3801048 |
METHOD FOR REDUCING DRAG OF VERTICAL TAKEOFF TYPE AIRCRAFT
Method of reducing drag on an aircraft of the vertical takeoff variety and having a particular power plant for production of vertical thrust as well as a main engine for producing forward thrust...
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3792587 |
EXHAUST VECTORING MEANS
An exhaust vectoring means is provided for use with an aircraft gas turbine engine in order to vector the exhaust stream from the engine in the generally vertical direction for vertical landing and...
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3783618 |
AERODYNAMIC ENGINE SYSTEM
A lift-fan engine system of small size but strong lifting power which comprises a lift-fan having a plurality of fan blades each formed by an inner-fan blade portion gradually twisted toward its...
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3752417 |
AIRCRAFT USING LIFTING FANS
An aircraft of VTOL or STOL type is provided with at least one vertically extending duct in the fuselage containing an upper and a lower fan. Air valve means between the fans divide the duct into...
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3739580 |
PROPULSION SYSTEM CONTROL
A propulsion and control system that includes gas generator means which discharges high energy gases into ducting which is connected to at least two thrust units for converting the high energy...
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3618875 |
V/STOL AIRCRAFT
A V/STOL aircraft comprises a fuselage having tandem wings which are offset lengthwise and vertically. Identical propulsion units are provided in each wing half. Each power unit comprises a pair of...
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3528631 |
LIFT FAN SCROLL AREA CONTROL
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3388878 |
Vtol aircraft with balanced power, retractible lift fan system
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3387456 |
Aerodynamic shield device for vtol jet aircraft engine exhaust
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3347496 |
Engine air inlet system for supersonic v/stol aircraft
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3335976 |
Vtol aircraft
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3279554 |
Ground effect vehicles
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3273379 |
Method of locating leaks
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3267668 |
Convertible radial flow fan
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3267667 |
Reversible flow fan
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3263416 |
By-pass air diversion to lift fans
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3262657 |
Vtol short hop aircraft
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3244246 |
Winged ground effect machines
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3223355 |
Alternative sustentation system for aircraft
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3217490 |
Installation of jet engines in engine bays
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3171613 |
Combined ducted fan door and wing flap
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3170285 |
Vertical takeoff aerial lifting device
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3157373 |
Vertical lift gas turbine engine
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3154917 |
Diverter for ducted fan aircraft
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3146590 |
Power system with energy dividing means
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3136500 |
Housings for jet propulsion gas turbine engines
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3122343 |
Vertical take-off and landing aircraft
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3120932 |
Jet-balloon aircraft
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3120362 |
Aircraft control apparatus
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3116898 |
Vto inlet
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3094298 |
Vto fan modulating structure
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3087691 |
Aircraft utilizing plural jet engines connectable to drive turbine driven lift rotors
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