AU540743B2 - Automatic lock-positioning of foldable helicopter blades - Google Patents

Automatic lock-positioning of foldable helicopter blades

Info

Publication number
AU540743B2
AU540743B2 AU76227/81A AU7622781A AU540743B2 AU 540743 B2 AU540743 B2 AU 540743B2 AU 76227/81 A AU76227/81 A AU 76227/81A AU 7622781 A AU7622781 A AU 7622781A AU 540743 B2 AU540743 B2 AU 540743B2
Authority
AU
Australia
Prior art keywords
positioning
automatic lock
helicopter blades
foldable
foldable helicopter
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.)
Ceased
Application number
AU76227/81A
Other languages
English (en)
Other versions
AU7622781A (en
Inventor
Kenneth Charles Arifian
Donald Wayne Fowler
Roderick Alexander Maclennan
William Joseph Mulvey
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.)
Raytheon Technologies Corp
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
Priority claimed from US06/195,723 external-priority patent/US4376979A/en
Priority claimed from US06/195,808 external-priority patent/US4354234A/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of AU7622781A publication Critical patent/AU7622781A/en
Application granted granted Critical
Publication of AU540743B2 publication Critical patent/AU540743B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features
    • B64C27/50—Blades foldable to facilitate stowage of aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)
  • Transmission Devices (AREA)
AU76227/81A 1980-10-10 1981-10-09 Automatic lock-positioning of foldable helicopter blades Ceased AU540743B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/195,723 US4376979A (en) 1980-10-10 1980-10-10 Updated lock-positioning of foldable helicopter blades
US06/195,808 US4354234A (en) 1980-10-10 1980-10-10 Automatic lock-positioning of foldable helicopter blades
US195808 1980-10-10
US195723 1994-02-14

Publications (2)

Publication Number Publication Date
AU7622781A AU7622781A (en) 1982-04-22
AU540743B2 true AU540743B2 (en) 1984-11-29

Family

ID=26891271

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76227/81A Ceased AU540743B2 (en) 1980-10-10 1981-10-09 Automatic lock-positioning of foldable helicopter blades

Country Status (8)

Country Link
AU (1) AU540743B2 (fr)
CA (1) CA1161413A (fr)
CH (1) CH652673A5 (fr)
DE (1) DE3139720C2 (fr)
ES (1) ES8206331A1 (fr)
FR (1) FR2491865A1 (fr)
GB (1) GB2085194B (fr)
IT (1) IT1138938B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU587363B1 (en) * 1988-07-27 1989-08-10 Richard Henry Tollervey Improvements to helicopter rotor blades

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696445A (en) * 1986-09-18 1987-09-29 United Technologies Corporation Collective control system for a helicopter
FR2754779B1 (fr) * 1996-10-22 1998-12-31 Eurocopter France Procede de repliage des pales d'un rotor principal de giravion et dispositif de mise en oeuvre
FR2931132B1 (fr) 2008-05-19 2010-04-23 Eurocopter France Systeme de commande assiste d'un giravon
US9682771B2 (en) 2013-08-14 2017-06-20 Sikorsky Aircraft Corporation Controlling rotor blades of a swashplateless rotor
CN114465065B (zh) * 2022-01-06 2023-11-03 广东汇天航空航天科技有限公司 飞行器主轴滑环装置、飞行器旋翼系统及飞行器
CN114802739B (zh) * 2022-06-09 2023-04-07 广东汇天航空航天科技有限公司 飞行器的旋翼定位方法、飞行器和存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698662A (en) * 1970-10-12 1972-10-17 Lockheed Aircraft Corp Apparatus and method for sequencing the folding and unfolding of rotor blades in a compound vehicle
US4103848A (en) * 1977-03-08 1978-08-01 United Technologies Corporation Variable incidence helicopter stabilator and fail safe actuator
US4284387A (en) * 1979-05-02 1981-08-18 United Technologies Corp. Blade fold restraint system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU587363B1 (en) * 1988-07-27 1989-08-10 Richard Henry Tollervey Improvements to helicopter rotor blades

Also Published As

Publication number Publication date
IT1138938B (it) 1986-09-17
GB2085194A (en) 1982-04-21
CA1161413A (fr) 1984-01-31
GB2085194B (en) 1984-03-07
FR2491865A1 (fr) 1982-04-16
AU7622781A (en) 1982-04-22
FR2491865B1 (fr) 1983-12-23
CH652673A5 (de) 1985-11-29
ES506143A0 (es) 1982-08-16
DE3139720A1 (de) 1982-05-19
ES8206331A1 (es) 1982-08-16
DE3139720C2 (de) 1994-02-10
IT8124415A0 (it) 1981-10-09

Similar Documents

Publication Publication Date Title
AU524334B2 (en) Helicopter blade
JPS56167599A (en) Helicopter blade
AU528307B2 (en) Helicopter blade coupling
AU536934B2 (en) Helicopter blades
AU523370B2 (en) Helicopter rotor
AU7752781A (en) Centrifuge
AU7374981A (en) Centrifugal separator
AU523139B2 (en) Helicopter
AU7305981A (en) Airborne mower
AU568313B2 (en) Turbine blade
AU537146B2 (en) Helicopter stability augmentation
AU4779079A (en) Helicopter rotor
DE3175016D1 (en) Helicopter rotor blade
AU539279B2 (en) Preparation of dialkyldithiophosphinates
AU5109179A (en) Flying disc
AU540743B2 (en) Automatic lock-positioning of foldable helicopter blades
AU545992B2 (en) Turbine blades
AU547080B2 (en) Lightweight aircraft
AU543202B2 (en) Centrifugal filter
AU540193B2 (en) Helicopter rotor thrust ring
AU6583780A (en) Centrifugal filter
AU548164B2 (en) Benzodioxin derivatives
AU532353B2 (en) Preparing bisphenol sulphone derivatives
AU546205B2 (en) Preparation of 3-aryl-3-hydroxyphthalimidines
AU520779B2 (en) Helicopter landing platform