GB2238995B - Compound helicopters - Google Patents

Compound helicopters

Info

Publication number
GB2238995B
GB2238995B GB9026433A GB9026433A GB2238995B GB 2238995 B GB2238995 B GB 2238995B GB 9026433 A GB9026433 A GB 9026433A GB 9026433 A GB9026433 A GB 9026433A GB 2238995 B GB2238995 B GB 2238995B
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.)
Expired - Lifetime
Application number
GB9026433A
Other versions
GB2238995A (en
GB9026433D0 (en
Inventor
David Ernest Hall Balmford
David Vincent Humpherson
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 GB9026433D0 publication Critical patent/GB9026433D0/en
Publication of GB2238995A publication Critical patent/GB2238995A/en
Application granted granted Critical
Publication of GB2238995B publication Critical patent/GB2238995B/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
    • B64C27/22—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
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
GB9026433A 1989-12-08 1990-12-05 Compound helicopters Expired - Lifetime GB2238995B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898927785A GB8927785D0 (en) 1989-12-08 1989-12-08 Helicopters

Publications (3)

Publication Number Publication Date
GB9026433D0 GB9026433D0 (en) 1991-01-23
GB2238995A GB2238995A (en) 1991-06-19
GB2238995B true GB2238995B (en) 1993-05-19

Family

ID=10667638

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898927785A Pending GB8927785D0 (en) 1989-12-08 1989-12-08 Helicopters
GB9026433A Expired - Lifetime GB2238995B (en) 1989-12-08 1990-12-05 Compound helicopters

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898927785A Pending GB8927785D0 (en) 1989-12-08 1989-12-08 Helicopters

Country Status (4)

Country Link
DE (1) DE4039027A1 (en)
FR (1) FR2655611B1 (en)
GB (2) GB8927785D0 (en)
IT (1) IT1242176B (en)

Families Citing this family (7)

* 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
US6416015B1 (en) * 2001-05-01 2002-07-09 Franklin D. Carson Anti-torque and yaw-control system for a rotary-wing aircraft
US6755374B1 (en) * 2003-01-27 2004-06-29 Franklin D. Carson Anti-Torque and yaw-control system for a rotary-wing aircraft
EP1799544B1 (en) * 2004-09-28 2016-05-25 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964360A (en) * 1961-12-12 1964-07-22 Power Jets Res & Dev Ltd Helicopter
US3957226A (en) * 1975-01-27 1976-05-18 The Boeing Company Helicopter yaw and propulsion mechanism
GB2012223A (en) * 1977-12-21 1979-07-25 Summa Corp Helicopter
GB2130984A (en) * 1982-12-01 1984-06-13 Rolls Royce Compound helicopter and power plant therefor
US4768737A (en) * 1987-03-02 1988-09-06 Pbsystems, Inc. Helicopter control system

Family Cites Families (15)

* 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
GB577524A (en) * 1943-06-04 1946-05-21 Enea Bossi Improvement in airing of anti-torque propeller
US2452355A (en) * 1944-09-11 1948-10-26 Borg Warner Torque control for helicopters
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
US3059877A (en) * 1961-08-11 1962-10-23 United Aircraft Corp Helicopter anti-torque device
FR1332300A (en) * 1962-07-25 1963-07-12 United Aircraft Corp Anti-torque mechanism for helicopters
GB1108454A (en) * 1966-07-12 1968-04-03 Rolls Royce Improvements in or relating to gas turbine engines
US3678690A (en) * 1970-07-10 1972-07-25 United Aircraft Corp Convertible composite engine
US3807662A (en) * 1972-11-13 1974-04-30 Lockheed Aircraft Corp Anti-torque, propulsion, and directional control system
DE3127106A1 (en) * 1981-07-09 1983-01-27 Hughes Helicopters, Inc., 90230 Culver City, Calif. Device for radiation shielding and propagating gas
DE3129305A1 (en) * 1981-07-24 1983-02-10 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Device for infrared suppression for aircraft, especially helicopters
US4462559A (en) * 1982-09-07 1984-07-31 Garza Roberto M Means for controlling lateral movement of a helicopter
US4589611A (en) * 1983-03-01 1986-05-20 Maurice Ramme Air jet reaction contrarotating rotor gyrodyne
US4815282A (en) * 1987-02-24 1989-03-28 Teledyne Industries, Inc. Turbocharged compund cycle ducted fan engine system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB964360A (en) * 1961-12-12 1964-07-22 Power Jets Res & Dev Ltd Helicopter
US3957226A (en) * 1975-01-27 1976-05-18 The Boeing Company Helicopter yaw and propulsion mechanism
GB2012223A (en) * 1977-12-21 1979-07-25 Summa Corp Helicopter
GB2130984A (en) * 1982-12-01 1984-06-13 Rolls Royce Compound helicopter and power plant therefor
US4768737A (en) * 1987-03-02 1988-09-06 Pbsystems, Inc. Helicopter control system

Also Published As

Publication number Publication date
GB8927785D0 (en) 1990-05-30
GB2238995A (en) 1991-06-19
IT9048546A0 (en) 1990-12-06
IT1242176B (en) 1994-02-16
GB9026433D0 (en) 1991-01-23
IT9048546A1 (en) 1991-06-09
DE4039027A1 (en) 1991-06-13
FR2655611B1 (en) 1995-06-09
FR2655611A1 (en) 1991-06-14

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Legal Events

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

Expiry date: 20101204