IT8448487A0 - Perfezionamento nelle pale dei rotori di elicotteri - Google Patents

Perfezionamento nelle pale dei rotori di elicotteri

Info

Publication number
IT8448487A0
IT8448487A0 IT8448487A IT4848784A IT8448487A0 IT 8448487 A0 IT8448487 A0 IT 8448487A0 IT 8448487 A IT8448487 A IT 8448487A IT 4848784 A IT4848784 A IT 4848784A IT 8448487 A0 IT8448487 A0 IT 8448487A0
Authority
IT
Italy
Prior art keywords
improvement
rotor blades
helicopter rotor
helicopter
blades
Prior art date
Application number
IT8448487A
Other languages
English (en)
Other versions
IT1177861B (it
Inventor
Perry Frederick John
Original Assignee
Westland Plc
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 Plc filed Critical Westland Plc
Publication of IT8448487A0 publication Critical patent/IT8448487A0/it
Application granted granted Critical
Publication of IT1177861B publication Critical patent/IT1177861B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Lubricants (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
IT48487/84A 1983-07-04 1984-07-02 Perfezionamento nelle pale dei rotori di elicotteri IT1177861B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8318109 1983-07-04

Publications (2)

Publication Number Publication Date
IT8448487A0 true IT8448487A0 (it) 1984-07-02
IT1177861B IT1177861B (it) 1987-08-26

Family

ID=10545219

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48487/84A IT1177861B (it) 1983-07-04 1984-07-02 Perfezionamento nelle pale dei rotori di elicotteri

Country Status (3)

Country Link
US (1) US4668169A (it)
CA (1) CA1243993A (it)
IT (1) IT1177861B (it)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976587A (en) * 1988-07-20 1990-12-11 Dwr Wind Technologies Inc. Composite wind turbine rotor blade and method for making same
US5433586A (en) * 1991-03-27 1995-07-18 Cessna Aircraft Company Tapered propeller blade design
US5209643A (en) * 1991-03-27 1993-05-11 The Cessna Aircraft Company Tapered propeller blade design
GB9112835D0 (en) * 1991-06-14 1992-05-27 Westland Helicopters Helicopter rotor blades
US5173023A (en) * 1991-08-12 1992-12-22 Cannon Energy Corporation Wind turbine generator blade and retention system
US5417548A (en) * 1994-01-14 1995-05-23 Midwest Research Institute Root region airfoil for wind turbine
US5562420A (en) * 1994-03-14 1996-10-08 Midwest Research Institute Airfoils for wind turbine
US6068446A (en) * 1997-11-20 2000-05-30 Midwest Research Institute Airfoils for wind turbine
US6996720B1 (en) * 1999-12-17 2006-02-07 Microsoft Corporation System and method for accessing protected content in a rights-management architecture
US7017189B1 (en) * 2000-06-27 2006-03-21 Microsoft Corporation System and method for activating a rendering device in a multi-level rights-management architecture
US6891953B1 (en) * 2000-06-27 2005-05-10 Microsoft Corporation Method and system for binding enhanced software features to a persona
US7225159B2 (en) * 2000-06-30 2007-05-29 Microsoft Corporation Method for authenticating and securing integrated bookstore entries
US20020046045A1 (en) * 2000-06-30 2002-04-18 Attila Narin Architecture for an electronic shopping service integratable with a software application
US6419464B1 (en) * 2001-01-16 2002-07-16 Honeywell International Inc. Vane for variable nozzle turbocharger
US7188342B2 (en) * 2001-04-20 2007-03-06 Microsoft Corporation Server controlled branding of client software deployed over computer networks
US6607164B2 (en) 2001-10-22 2003-08-19 Toyota Motor Sales, U.S.A., Inc. Wing airfoil
US7759327B2 (en) * 2006-01-06 2010-07-20 The Trustees Of Columbia University In The City Of New York Compositions containing zinc salts for coating medical articles
US8066219B2 (en) * 2008-04-25 2011-11-29 Karem Aircraft, Inc. Anhedral tip blades for tiltrotor aircraft
GB201109412D0 (en) * 2011-06-03 2011-07-20 Blade Dynamics Ltd A wind turbine rotor
DE102012206109C5 (de) * 2012-04-13 2022-06-09 Wobben Properties Gmbh Rotorblatt einer Windenergieanlage
DE102017124861A1 (de) 2017-10-24 2019-04-25 Wobben Properties Gmbh Rotorblatt einer Windenergieanlage und Verfahren zu dessen Auslegung
US10875639B2 (en) 2019-02-19 2020-12-29 United States Of America As Represented By The Secretary Of The Army Bi-planer rotor blade
CN113942642B (zh) * 2021-11-19 2023-09-08 中国直升机设计研究所 一种带有气动压力测量传感器的直升机桨叶

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR421916A (fr) * 1909-10-14 1911-03-08 Henry Chaigneau Hélice aérienne indéformable
FR859557A (fr) * 1938-08-29 1940-12-21 Aviat Patents Perfectionnements aux pales d'hélices aériennes et procédé pour situer l'axe de pivotement des pales d'hélices à pas variable
US3782856A (en) * 1972-05-31 1974-01-01 United Aircraft Corp Composite aerodynamic blade with twin-beam spar
US4248572A (en) * 1978-12-11 1981-02-03 United Technologies Corporation Helicopter blade
FR2479132A1 (fr) * 1980-03-25 1981-10-02 Aerospatiale Pale a hautes performances pour rotor d'helicoptere
DE3175016D1 (en) * 1980-03-28 1986-09-04 Westland Plc Helicopter rotor blade

Also Published As

Publication number Publication date
US4668169A (en) 1987-05-26
IT1177861B (it) 1987-08-26
CA1243993A (en) 1988-11-01

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970730