GB9026434D0 - Compound helicopters - Google Patents

Compound helicopters

Info

Publication number
GB9026434D0
GB9026434D0 GB909026434A GB9026434A GB9026434D0 GB 9026434 D0 GB9026434 D0 GB 9026434D0 GB 909026434 A GB909026434 A GB 909026434A GB 9026434 A GB9026434 A GB 9026434A GB 9026434 D0 GB9026434 D0 GB 9026434D0
Authority
GB
United Kingdom
Prior art keywords
compound helicopters
helicopters
compound
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB909026434A
Other versions
GB2238996B (en
GB2238996A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AgustaWestland Ltd
Original Assignee
Westland Helicopters Ltd
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 Westland Helicopters Ltd filed Critical Westland Helicopters Ltd
Publication of GB9026434D0 publication Critical patent/GB9026434D0/en
Publication of GB2238996A publication Critical patent/GB2238996A/en
Application granted granted Critical
Publication of GB2238996B publication Critical patent/GB2238996B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B64C27/26—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft characterised by provision of fixed wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • B64C2027/8245—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft using air jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/82—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft
    • B64C2027/8263—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft comprising in addition rudders, tails, fins, or the like
    • B64C2027/8272—Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft comprising in addition rudders, tails, fins, or the like comprising fins, or movable rudders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
GB9026434A 1989-12-08 1990-12-05 Compound helicopters Expired - Lifetime GB2238996B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898927784A GB8927784D0 (en) 1989-12-08 1989-12-08 Helicopters

Publications (3)

Publication Number Publication Date
GB9026434D0 true GB9026434D0 (en) 1991-01-23
GB2238996A GB2238996A (en) 1991-06-19
GB2238996B GB2238996B (en) 1993-05-19

Family

ID=10667637

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898927784A Pending GB8927784D0 (en) 1989-12-08 1989-12-08 Helicopters
GB9026434A Expired - Lifetime GB2238996B (en) 1989-12-08 1990-12-05 Compound helicopters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898927784A Pending GB8927784D0 (en) 1989-12-08 1989-12-08 Helicopters

Country Status (4)

Country Link
DE (1) DE4039028A1 (en)
FR (1) FR2655612B1 (en)
GB (2) GB8927784D0 (en)
IT (1) IT1242175B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9114085D0 (en) * 1991-06-29 1997-09-17 Rolls Royce Plc Improvements in or relating to helicopters
FR2679199B1 (en) * 1991-07-16 1997-01-31 Aerospatiale ANTICOUPLE SYSTEM FOR HELICOPTER.
US5676335A (en) * 1995-03-08 1997-10-14 Mcdonnell Douglas Helicopter Company Airflow control system for a helicopter
ZA962567B (en) * 1995-07-25 1996-10-07 Denel Pty Ltd Operation of a helicopter
CA2580110C (en) 2004-09-28 2010-06-15 Bell Helicopter Textron Inc. Propulsive anti-torque system for rotorcraft
NL1043177B1 (en) * 2019-03-04 2020-09-17 Pal V Ip B V Vertical Take Off and Landing Vehicle
CN110228585B (en) * 2019-06-14 2022-11-22 安徽工业大学 Combined wing aircraft
US11584522B2 (en) * 2020-11-30 2023-02-21 Textron Innovations Inc. Rotorcraft with cooling anti-torque system
US11760472B2 (en) * 2020-12-01 2023-09-19 Textron Innovations Inc. Rudders for rotorcraft yaw control systems

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383038A (en) * 1943-06-04 1945-08-21 Bossi Enea Airing of antitorque propellers
US2941749A (en) * 1955-04-06 1960-06-21 United Aircraft Corp Jet propelled convertiplane with jet driven rotor
DE1124823B (en) * 1959-05-02 1962-03-01 Daimler Benz Ag Propulsion for aircraft
FR1298518A (en) * 1961-06-02 1962-07-13 Sud Aviation Helicopter orientation control device
GB964360A (en) * 1961-12-12 1964-07-22 Power Jets Res & Dev Ltd Helicopter
GB1118117A (en) * 1965-04-22 1968-06-26 Dornier Werke Gmbh Helicopter with tail-mounted rotor system for propulsion and yawing control
US4026472A (en) * 1965-12-08 1977-05-31 General Electric Company Convergent-divergent plug nozzle
DE1526809C3 (en) * 1966-04-28 1973-12-06 Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen Thrust nozzle for gas turbine jet engines, preferably for afterburner engines
US3409250A (en) * 1966-12-27 1968-11-05 Gen Electric Movable fairing for an aircraftmounted nozzle
US3442471A (en) * 1966-12-27 1969-05-06 Helen M Fischer Nozzle structure
US3612402A (en) * 1969-12-22 1971-10-12 Rohr Corp Thrust-controlling apparatus with variable axial flow area for differing flight regimes and thrust reversal
US3678690A (en) * 1970-07-10 1972-07-25 United Aircraft Corp Convertible composite engine
GB1407428A (en) * 1971-10-20 1975-09-24 Mtu Muenchen Gmbh Gas turbine engine having a power turbine system adapted to be selectively cut in
US3807662A (en) * 1972-11-13 1974-04-30 Lockheed Aircraft Corp Anti-torque, propulsion, and directional control system
DE2328460A1 (en) * 1973-06-05 1975-01-02 Motoren Turbinen Union V/STOL. turbo-jet engine - has multi-flow and multi-drive shaft construction
US3957226A (en) * 1975-01-27 1976-05-18 The Boeing Company Helicopter yaw and propulsion mechanism
US4200252A (en) * 1977-12-21 1980-04-29 Summa Corporation Helicopter antitorque system using circulation control
FR2501786A1 (en) * 1981-03-13 1982-09-17 Snecma DEVICE FOR BEARING AND GUIDING AN ORIENTABLE NOZZLE OF A REACTION PROPELLER
GB2130984B (en) * 1982-12-01 1986-07-02 Rolls Royce Compound helicopter and power plant therefor
IT1183880B (en) * 1985-06-07 1987-10-22 Agusta Aeronaut Costr HELICOPTER WITH TURBINE POWER SUPPLY UNIT PROVIDED WITH EXHAUST MASK DEVICE
GB2194597B (en) * 1986-08-29 1990-07-25 Rolls Royce Plc A variable area exhaust nozzle for a gas turbine engine

Also Published As

Publication number Publication date
GB2238996B (en) 1993-05-19
IT9048545A0 (en) 1990-12-06
GB8927784D0 (en) 1990-05-30
FR2655612B1 (en) 1995-06-23
IT9048545A1 (en) 1991-06-09
DE4039028A1 (en) 1991-06-13
IT1242175B (en) 1994-02-16
GB2238996A (en) 1991-06-19
FR2655612A1 (en) 1991-06-14

Similar Documents

Publication Publication Date Title
GB2229985B (en) Aircraft
EP0424959A3 (en) Organosilylalkyl-aromatic compounds
GB8911719D0 (en) Compounds
EP0430885A3 (en) Anthelmintical compounds
GB2238996B (en) Compound helicopters
GB2238995B (en) Compound helicopters
GB8901430D0 (en) Compounds
GB9022540D0 (en) Compound
GB8901836D0 (en) Compounds
CA67659S (en) Gyroplane
EP0430883A3 (en) Anthelmintical compounds
GB8900371D0 (en) Helicopters
EP0447494A4 (en) Altromycin compounds
GB8900919D0 (en) Helicopters
GB8900917D0 (en) Helicopters
GB8900637D0 (en) Helicopter
GB8906431D0 (en) Compound
GB8911654D0 (en) Compound
GB8918929D0 (en) Compound
GB8921927D0 (en) Compound
GB8923045D0 (en) Compound
ZA908758B (en) Compound
GB8905589D0 (en) Compound
GB8902690D0 (en) Compound
GB8914736D0 (en) Compound

Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20101204