IL98102A - Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls - Google Patents

Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls

Info

Publication number
IL98102A
IL98102A IL98102A IL9810291A IL98102A IL 98102 A IL98102 A IL 98102A IL 98102 A IL98102 A IL 98102A IL 9810291 A IL9810291 A IL 9810291A IL 98102 A IL98102 A IL 98102A
Authority
IL
Israel
Prior art keywords
operable
flight
counter rotating
rotating rotors
including counter
Prior art date
Application number
IL98102A
Other languages
English (en)
Other versions
IL98102A0 (en
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of IL98102A0 publication Critical patent/IL98102A0/xx
Publication of IL98102A publication Critical patent/IL98102A/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B64U10/13—Flying platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U20/00—Constructional aspects of UAVs
    • B64U20/60—UAVs characterised by the material
    • B64U20/65—Composite materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports
    • B64U30/24—Coaxial rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports
    • B64U30/26—Ducted or shrouded rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports
    • B64U30/29—Constructional aspects of rotors or rotor supports; Arrangements thereof
    • B64U30/296—Rotors with variable spatial positions relative to the UAV body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/60—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons
    • B64U2101/64—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons for parcel delivery or retrieval
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/11—Propulsion using internal combustion piston engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/13—Propulsion using external fans or propellers
    • B64U50/14—Propulsion using external fans or propellers ducted or shrouded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Transmission Devices (AREA)
IL98102A 1990-05-18 1991-05-10 Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls IL98102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/526,092 US5152478A (en) 1990-05-18 1990-05-18 Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls

Publications (2)

Publication Number Publication Date
IL98102A0 IL98102A0 (en) 1992-06-21
IL98102A true IL98102A (en) 1993-04-04

Family

ID=24095885

Family Applications (1)

Application Number Title Priority Date Filing Date
IL98102A IL98102A (en) 1990-05-18 1991-05-10 Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls

Country Status (8)

Country Link
US (1) US5152478A (de)
EP (1) EP0457710B1 (de)
JP (1) JP2911643B2 (de)
AU (1) AU636484B2 (de)
CA (1) CA2042235C (de)
DE (1) DE69107677T2 (de)
IL (1) IL98102A (de)
RU (1) RU2062246C1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10095226B1 (en) 2008-02-12 2018-10-09 Drone-Control, Llc Radio controlled aircraft, remote controller and methods for use therewith

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150857A (en) * 1991-08-13 1992-09-29 United Technologies Corporation Shroud geometry for unmanned aerial vehicles
US5277380A (en) * 1992-06-22 1994-01-11 United Technologies Corporation Toroidal fuselage structure for unmanned aerial vehicles having ducted, coaxial, counter-rotating rotors
DE69332507T2 (de) * 1992-06-22 2003-07-03 United Technologies Corp., Stratford Rotorblattanordnung für unbemanntes Fluggerät
FR2707248B1 (fr) * 1993-07-05 1995-08-18 Thomson Csf Engin volant autopropulsé et télécommande muni d'une charge utile.
RU2012512C1 (ru) * 1993-09-07 1994-05-15 Фирма "ВИСТ" Комбинированный летательный аппарат
US5370341A (en) * 1994-04-05 1994-12-06 Leon; Ross Ultralight helicopter and control system
US5575438A (en) * 1994-05-09 1996-11-19 United Technologies Corporation Unmanned VTOL ground surveillance vehicle
US5971325A (en) * 1997-12-23 1999-10-26 Sikorsky Aircraft Corporation Compensation for rotorcraft pitch axis control saturation
IL141628A0 (en) * 1998-08-27 2002-03-10 Bostan Nicolae Gyrostabilized self-propelled aircraft
EP1144249B1 (de) * 1998-12-11 2003-09-03 Moller International, Inc. Stabilisierungsvorrichtung für eine robotische oder ferngesteuerte fliegende plattform
RU2148530C1 (ru) * 1999-02-03 2000-05-10 Карфидов Владимир Николаевич Летательный аппарат
USD418475S (en) * 1999-04-08 2000-01-04 Milde Jr Karl F Personal air transport
US6170778B1 (en) 1999-04-22 2001-01-09 Sikorsky Aircraft Corporation Method of reducing a nose-up pitching moment on a ducted unmanned aerial vehicle
US6270038B1 (en) 1999-04-22 2001-08-07 Sikorsky Aircraft Corporation Unmanned aerial vehicle with counter-rotating ducted rotors and shrouded pusher-prop
US6543726B2 (en) * 1999-05-21 2003-04-08 Vortex Holding Company Fluid flow straightening techniques
USD430530S (en) * 1999-12-09 2000-09-05 Milde Jr Karl F Personal air transport
FR2804082B1 (fr) * 2000-01-20 2002-05-17 Gyropter Aeronef a ailes tournantes
US6848649B2 (en) 2000-10-03 2005-02-01 Charles Gilpin Churchman V/STOL biplane aircraft
US6581872B2 (en) * 2001-08-08 2003-06-24 Eric Ronald Walmsley Circular vertical take off & landing aircraft
US8113905B2 (en) * 2001-03-28 2012-02-14 Steven Davis Directionally controllable flying vehicle and a propeller mechanism for accomplishing the same
US8500507B2 (en) 2001-03-28 2013-08-06 Steven Davis Directionally controllable flying vehicle and a propeller mechanism for accomplishing the same
AU2002354809A1 (en) 2001-07-06 2003-01-21 The Charles Stark Draper Laboratory, Inc. Vertical takeoff and landing aerial vehicle
US6672538B2 (en) * 2002-05-23 2004-01-06 Sikorsky Aircraft Corporation Transmission for a coaxial counter rotating rotor system
AU2003304119A1 (en) 2002-08-30 2004-12-03 Qaxu Technology Inc. Homeostatic flying hovercraft
RU2226480C1 (ru) * 2002-09-12 2004-04-10 ООО "Мидера-К" Летательный аппарат
US6834829B2 (en) * 2003-01-02 2004-12-28 Percy E. Dunagin, Jr. Vertical lift aircraft having an enclosed rotary wing
EP1592594A2 (de) * 2003-02-07 2005-11-09 Anergy Holdings Ltd. Schwebeplattform
FR2856378B1 (fr) 2003-06-18 2006-03-17 Gaudeffroy Charles Mic Guilhot Gyroptere a securite renforcee
ITTO20030588A1 (it) * 2003-07-30 2005-01-31 Fiat Ricerche Macchina volante.
FR2860211A1 (fr) * 2003-09-30 2005-04-01 Gaudeffroy Michel Char Guilhot Mecanisme de couplage mecanique des commandes pour aeronef a voilures contrarotatives
JP2005144610A (ja) * 2003-11-17 2005-06-09 Fanuc Ltd センサケーブル配線処理構造
RU2256585C1 (ru) 2004-01-20 2005-07-20 Общество С Ограниченной Ответственностью "Мидера-К" Воздушный винт
US20050230525A1 (en) * 2004-03-30 2005-10-20 Paterro Von F C Craft with magnetically curved space
US7520466B2 (en) * 2005-03-17 2009-04-21 Nicolae Bostan Gyro-stabilized air vehicle
US7712701B1 (en) * 2006-02-10 2010-05-11 Lockheed Martin Corporation Unmanned aerial vehicle with electrically powered, counterrotating ducted rotors
US7631834B1 (en) 2006-02-24 2009-12-15 Stealth Robotics, Llc Aerial robot with dispensable conductive filament
US7510142B2 (en) * 2006-02-24 2009-03-31 Stealth Robotics Aerial robot
US8087315B2 (en) 2006-10-10 2012-01-03 Honeywell International Inc. Methods and systems for attaching and detaching a payload device to and from, respectively, a gimbal system without requiring use of a mechanical tool
US20080302920A1 (en) * 2007-03-07 2008-12-11 Mack Gerald L Aerial Lifting and Propulsion Device (ALPD)
US7681832B2 (en) 2007-05-02 2010-03-23 Honeywell International Inc. Ducted fan air vehicle with deployable wings
US8342442B1 (en) * 2007-05-15 2013-01-01 Dancila LLC Advanced airship technologies
US8251307B2 (en) * 2007-06-11 2012-08-28 Honeywell International Inc. Airborne manipulator system
US8091833B2 (en) * 2008-02-29 2012-01-10 Insitu, Inc. Vibration isolation devices and associated systems and methods
KR101344777B1 (ko) * 2008-07-07 2014-01-15 (주)선택이앤티 회전하는 하방날개형 비행체
US8109711B2 (en) * 2008-07-18 2012-02-07 Honeywell International Inc. Tethered autonomous air vehicle with wind turbines
US8123460B2 (en) * 2008-07-23 2012-02-28 Honeywell International Inc. UAV pod cooling using integrated duct wall heat transfer
US8387911B2 (en) * 2008-07-25 2013-03-05 Honeywell International Inc. Ducted fan core for use with an unmanned aerial vehicle
US8070103B2 (en) * 2008-07-31 2011-12-06 Honeywell International Inc. Fuel line air trap for an unmanned aerial vehicle
US20120234984A1 (en) * 2008-08-06 2012-09-20 Honeywell International Inc. Integrated Duct Design for an Unmanned Aerial Vehicle
US8240597B2 (en) * 2008-08-06 2012-08-14 Honeywell International Inc. UAV ducted fan lip shaping
US8543265B2 (en) * 2008-10-20 2013-09-24 Honeywell International Inc. Systems and methods for unmanned aerial vehicle navigation
US8123169B2 (en) * 2008-11-12 2012-02-28 Honeywell International Inc. Vertical non-bladdered fuel tank for a ducted fan vehicle
US8225822B2 (en) * 2008-11-14 2012-07-24 Honeywell International Inc. Electric fueling system for a vehicle that requires a metered amount of fuel
US8328130B2 (en) * 2008-12-08 2012-12-11 Honeywell International Inc. Vertical take off and landing unmanned aerial vehicle airframe structure
US20110001017A1 (en) * 2008-12-08 2011-01-06 Honeywell International Inc. Uav ducted fan swept and lean stator design
US8375837B2 (en) * 2009-01-19 2013-02-19 Honeywell International Inc. Catch and snare system for an unmanned aerial vehicle
US8348190B2 (en) 2009-01-26 2013-01-08 Honeywell International Inc. Ducted fan UAV control alternatives
US8205820B2 (en) * 2009-02-03 2012-06-26 Honeywell International Inc. Transforming unmanned aerial-to-ground vehicle
US20100215212A1 (en) * 2009-02-26 2010-08-26 Honeywell International Inc. System and Method for the Inspection of Structures
US20100228406A1 (en) * 2009-03-03 2010-09-09 Honeywell International Inc. UAV Flight Control Method And System
US20110180667A1 (en) * 2009-03-10 2011-07-28 Honeywell International Inc. Tether energy supply system
BRPI0903144A2 (pt) * 2009-04-09 2011-07-05 Jaime Brustolin aeronave de deslocamento aéreo decolagem e pouso vertical
WO2011159374A2 (en) * 2010-03-08 2011-12-22 The Penn State Research Foundation Double-ducted fan
US9004393B2 (en) 2010-10-24 2015-04-14 University Of Kansas Supersonic hovering air vehicle
BR112013007255B1 (pt) * 2010-11-12 2021-01-19 Sky Sapience sistema
DE102012105803B4 (de) 2012-06-29 2022-11-03 Dieter Herz Fahrzeug
US9011250B2 (en) 2012-10-05 2015-04-21 Qfo Labs, Inc. Wireless communication system for game play with multiple remote-control flying craft
EP2738091B1 (de) 2012-11-30 2015-07-22 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Senkrecht startendes bzw. landendes (VTOL) Luftfahrzeug und Verfahren für den Betrieb eines solchen Luftfahrzeugs
SG2013004940A (en) * 2013-01-21 2014-08-28 Singapore Tech Aerospace Ltd Method for improving crosswind stability of a propeller duct and a corresponding apparatus, system and computer readable medium
US9290269B2 (en) 2013-03-15 2016-03-22 CyPhy Works, Inc. Spooler for unmanned aerial vehicle system
US9452829B2 (en) * 2013-10-08 2016-09-27 Sikorsky Aircraft Corporation Yaw control of co-axial rotor
EP2878433B1 (de) 2013-11-29 2016-04-20 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Ummantelte Drehanordnung aus segmentiertem Verbundwerkstoff für Flugzeuge sowie verfahren zu deren Herstellung
EP3094558B1 (de) 2014-01-07 2019-05-29 4525612 Canada Inc. Dba Maginaire Persönliches luftfahrzeug
US10107196B2 (en) 2014-08-08 2018-10-23 Thomas International, Inc. Adjustable size inlet system
USD780665S1 (en) * 2015-02-16 2017-03-07 John Jeffrey Blincow Space station
CN107614379A (zh) 2015-05-25 2018-01-19 多特瑞尔技术有限公司 用于飞行器的护罩
US11001378B2 (en) 2016-08-08 2021-05-11 Jetoptera, Inc. Configuration for vertical take-off and landing system for aerial vehicles
US10501197B2 (en) 2015-09-02 2019-12-10 Jetoptera, Inc. Fluidic propulsive system
US10464668B2 (en) 2015-09-02 2019-11-05 Jetoptera, Inc. Configuration for vertical take-off and landing system for aerial vehicles
US9815552B1 (en) 2015-09-21 2017-11-14 Amazon Technologies, Inc. Unmanned aerial vehicle with center mounted fuselage and closed wing
ITUB20153894A1 (it) * 2015-09-25 2017-03-25 Skybox Eng S R L Struttura di drone ad elevata efficienza aerodinamica
US10258888B2 (en) 2015-11-23 2019-04-16 Qfo Labs, Inc. Method and system for integrated real and virtual game play for multiple remotely-controlled aircraft
USD817252S1 (en) * 2016-04-19 2018-05-08 Samsung Electronics Co., Ltd. Drone
USD817251S1 (en) * 2016-04-19 2018-05-08 Samsung Electronics Co., Ltd. Drone
USD815580S1 (en) * 2016-04-19 2018-04-17 Samsung Electronics Co., Ltd. Drone
CN107323666B (zh) * 2016-04-28 2020-11-06 深圳富泰宏精密工业有限公司 无人飞行器
EP3497015B1 (de) * 2016-08-08 2023-10-18 Cleo Robotics Inc. Unbemanntes luftfahrzeug und system zur steuerung eines unbemannten luftfahrzeugs
USD813315S1 (en) * 2016-11-18 2018-03-20 Eric Sweeney Flying disk
EP3366586B1 (de) * 2017-02-27 2020-08-19 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Schuberzeugungseinheit mit mindestens zwei rotoranordnungen und ummantelung
CA3068569A1 (en) 2017-06-27 2019-01-03 Jetoptera, Inc. Configuration for vertical take-off and landing system for aerial vehicles
EP3645389A4 (de) * 2017-06-27 2021-04-07 Bonavide (PTY) LTD Unbemannter drehflügler
WO2019022618A1 (en) 2017-07-24 2019-01-31 Dotterel Technologies Limited ENVELOPE
US10423831B2 (en) 2017-09-15 2019-09-24 Honeywell International Inc. Unmanned aerial vehicle based expansion joint failure detection system
US10583924B2 (en) * 2017-10-01 2020-03-10 Petru A. Simionescu Vertical takeoff and landing unmanned aerial vehicle (VTOL-UAV)
US11712637B1 (en) 2018-03-23 2023-08-01 Steven M. Hoffberg Steerable disk or ball
US11721352B2 (en) 2018-05-16 2023-08-08 Dotterel Technologies Limited Systems and methods for audio capture
CN113022860B (zh) * 2021-05-24 2021-09-14 四川迅联达智能科技有限公司 一种具有电控多功能差速航向控制系统的飞行器
EP4568895A1 (de) * 2022-08-09 2025-06-18 Pete Bitar Kompakte und leichte drohnenabgabevorrichtung mit lichtbogendrohnensystem mit luftkanalluftantriebssystem und relativ geringer flugverfolgbarkeit
DE102022122257B3 (de) 2022-09-02 2024-03-07 Tom Bauer Flugscheibe mit Manteldoppelrotor
CN115246477B (zh) * 2022-09-21 2022-12-23 北京航空航天大学 一种转动自平衡的系留无人机
WO2024117891A1 (en) 2022-12-02 2024-06-06 Topspin Robotics, Sia An unmanned aerial vehicle with a variable gap duct unit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935275A (en) * 1955-10-20 1960-05-03 Leonard W Grayson Disc shaped aircraft
US3002709A (en) * 1955-12-19 1961-10-03 C L Cochran And Associates Aircraft adapted for vertical ascent and descent
US3103327A (en) * 1956-04-12 1963-09-10 Charles B Bolton Helicopter control system
US2966318A (en) * 1959-05-12 1960-12-27 Chodan Ivan Variable pitch means for vertically rising plane
FR75976E (fr) * 1959-07-01 1961-09-01 R L Cie De Rech S Et D Etudes Perfectionnements aux engins de navigation aérienne
US3409249A (en) * 1966-06-29 1968-11-05 United Aircraft Corp Coaxial rigid rotor helicopter and method of flying same
US3477168A (en) * 1967-03-20 1969-11-11 James E Trodglen Jr Internal combustion engine powered flying toys
DE1756219A1 (de) * 1968-04-23 1972-01-27 Wolfgang Haimerl Flugscheibe
GB1523714A (en) * 1971-12-13 1978-09-06 Westland Aircraft Ltd Helicopters
DE2718178A1 (de) * 1977-04-23 1978-11-02 Mueller Mahn Werner Mantelfluegel-senkrechtstarter
US4196877A (en) * 1977-06-15 1980-04-08 Mutrux Jean L Aircraft
US5035377A (en) * 1985-02-28 1991-07-30 Technolizenz Establishment Free standing or aircraft lift generator
US4796836A (en) * 1985-02-28 1989-01-10 Dieter Schatzmayr Lifting engine for VTOL aircrafts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10095226B1 (en) 2008-02-12 2018-10-09 Drone-Control, Llc Radio controlled aircraft, remote controller and methods for use therewith
US10248117B2 (en) 2008-02-12 2019-04-02 Drone-Control, Llc Radio controlled aircraft, remote controller and methods for use therewith
US11281205B2 (en) 2008-02-12 2022-03-22 Drone-Control, Llc Radio controlled aircraft, remote controller and methods for use therewith
US12130619B2 (en) 2008-02-12 2024-10-29 Drone-Control, Llc Radio controlled aircraft, remote controller and methods for use therewith

Also Published As

Publication number Publication date
DE69107677T2 (de) 1995-06-29
AU7642691A (en) 1991-11-21
DE69107677D1 (de) 1995-04-06
CA2042235C (en) 1994-09-20
RU2062246C1 (ru) 1996-06-20
US5152478A (en) 1992-10-06
EP0457710B1 (de) 1995-03-01
CA2042235A1 (en) 1991-11-19
AU636484B2 (en) 1993-04-29
EP0457710A3 (en) 1992-01-15
IL98102A0 (en) 1992-06-21
JP2911643B2 (ja) 1999-06-23
EP0457710A2 (de) 1991-11-21
JPH04231290A (ja) 1992-08-20

Similar Documents

Publication Publication Date Title
IL98102A0 (en) Unmanned flight vehicle including counter rotating rotors positioned within a toroidal shroud and operable to provide all required vehicle flight controls
GB2129502B (en) Aircraft engine having a counter rotation power turbine
GB2185951B (en) Helicopter rotor and engine control
EP0351104A3 (en) Helicopter rotor blades
DE3569599D1 (en) A changeable cooling control system for a turbine shroud and rotor
EP0093684A3 (en) Helicopter engine control with rotor speed decay anticipator
GB8508075D0 (en) Power takeoff speed control assembly
DE3464572D1 (en) Retractible blocking device to limit the flapping of the blades of a rotorcraft's main rotor
GB9022281D0 (en) Helicopter rotor blades
GB9023141D0 (en) Helicopter rotor blades
GB2116506B (en) A helicopter rotor
YU41484A (en) Turbine with reverse orientated rotors
DE3364791D1 (en) Wing flap assembly and aircraft provided therewith
GB2116505B (en) A helicopter rotor hub
GB9022271D0 (en) Helicopter rotor blades
GB8724123D0 (en) Variable speed aircraft landing wheels
GB2192940B (en) A variable area aircraft air intake
GB2164309B (en) Helicopter rotor blades
GB9018791D0 (en) A centrifuge comprising a rotor with a shroud
GB2171376B (en) Helicopter rotor with flap limiting means
GB2246304B (en) Fuselage of a model airplane
JPS55148696A (en) Helicopter rotor
GB8424116D0 (en) Aircraft rotors
AU587512B2 (en) Preventing inadvertent downthrottling of the operative engine in a multi-engine aircraft
GB2072115B (en) Manufacture of a support wing and a flap

Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees