GB2011333A – Helicopter blade
– Google Patents
GB2011333A – Helicopter blade
– Google Patents
Helicopter blade
Info
Publication number
GB2011333A
GB2011333A
GB7844216A
GB7844216A
GB2011333A
GB 2011333 A
GB2011333 A
GB 2011333A
GB 7844216 A
GB7844216 A
GB 7844216A
GB 7844216 A
GB7844216 A
GB 7844216A
GB 2011333 A
GB2011333 A
GB 2011333A
Authority
GB
United Kingdom
Prior art keywords
helicopter blade
helicopter
blade
Prior art date
1977-11-11
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
GB7844216A
Other versions
GB2011333B
(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.)
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.)
1977-11-11
Filing date
1978-11-13
Publication date
1979-07-11
1978-11-13
Application filed by United Technologies Corp
filed
Critical
United Technologies Corp
1979-07-11
Publication of GB2011333A
publication
Critical
patent/GB2011333A/en
1982-02-24
Application granted
granted
Critical
1982-02-24
Publication of GB2011333B
publication
Critical
patent/GB2011333B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B64—AIRCRAFT; AVIATION; COSMONAUTICS
B64C—AEROPLANES; HELICOPTERS
B64C27/00—Rotorcraft; Rotors peculiar thereto
B64C27/32—Rotors
B64C27/46—Blades
B64C27/467—Aerodynamic features
B—PERFORMING OPERATIONS; TRANSPORTING
B64—AIRCRAFT; AVIATION; COSMONAUTICS
B64C—AEROPLANES; HELICOPTERS
B64C27/00—Rotorcraft; Rotors peculiar thereto
B64C27/32—Rotors
B64C27/46—Blades
B64C27/463—Blade tips
GB7844216A
1977-11-11
1978-11-13
Helicopter blade
Expired
GB2011333B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/850,765
US4142837A
(en)
1977-11-11
1977-11-11
Helicopter blade
Publications (2)
Publication Number
Publication Date
GB2011333A
true
GB2011333A
(en)
1979-07-11
GB2011333B
GB2011333B
(en)
1982-02-24
Family
ID=25309054
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7844216A
Expired
GB2011333B
(en)
1977-11-11
1978-11-13
Helicopter blade
Country Status (12)
Country
Link
US
(1)
US4142837A
(en)
JP
(1)
JPS5475796A
(en)
AU
(1)
AU524387B2
(en)
BE
(1)
BE871886A
(en)
BR
(1)
BR7807428A
(en)
CA
(1)
CA1092581A
(en)
DE
(1)
DE2849067A1
(en)
FR
(1)
FR2408518A1
(en)
GB
(1)
GB2011333B
(en)
IL
(1)
IL55887A
(en)
IT
(1)
IT1101063B
(en)
NO
(1)
NO144953C
(en)
Families Citing this family (27)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4248572A
(en)
*
1978-12-11
1981-02-03
United Technologies Corporation
Helicopter blade
FR2463054A1
(en)
*
1979-08-10
1981-02-20
Aerospatiale
BLADE PROFILE FOR AN AIRCRAFT TURNING SAIL
CA1141738A
(en)
*
1979-08-10
1983-02-22
Jacques Gallot
Rotary wing rotor blade profile
US4314795A
(en)
*
1979-09-28
1982-02-09
The Boeing Company
Advanced airfoils for helicopter rotor application
EP0037633B1
(en)
*
1980-03-28
1986-07-30
WESTLAND plc
Helicopter rotor blade
FR2490586A1
(en)
*
1980-09-24
1982-03-26
Aerospatiale
BLADE PROFILE FOR AN AIRCRAFT TURNING SAIL
FR2507149A1
(en)
*
1981-06-05
1982-12-10
Onera (Off Nat Aerospatiale)
END OF BLADE FOR AN AIRCRAFT ROTARY SAIL AND ROTARY VESSEL PROVIDED WITH SUCH EXTREMITES OF BLADE
FR2536365A1
(en)
*
1982-11-18
1984-05-25
Onera (Off Nat Aerospatiale)
BLADE FOR AIRCRAFT PROPELLER
US4569633A
(en)
*
1983-04-18
1986-02-11
United Technologies Corporation
Airfoil section for a rotor blade of a rotorcraft
US4789305A
(en)
*
1985-04-26
1988-12-06
Vaughen Jack F
Self-feathering rotary wing
USRE33589E
(en)
*
1986-09-03
1991-05-14
United Technologies Corporation
Helicopter blade airfoil
US4744728A
(en)
*
1986-09-03
1988-05-17
United Technologies Corporation
Helicopter blade airfoil
GB9022281D0
(en)
*
1990-10-13
1991-02-20
Westland Helicopters
Helicopter rotor blades
US5137427A
(en)
*
1990-12-20
1992-08-11
United Technologies Corporation
Quiet tail rotor
DE4401596A1
(en)
*
1994-01-20
1995-07-27
Ekato Ruehr Mischtechnik
Stirrer
DE4444256C2
(en)
*
1994-12-13
1999-03-04
Gerhard Benker
Rotor blade structure for a helicopter
DE19713591C2
(en)
*
1997-04-02
2001-01-04
Karl Mayer
Rotor for a rotary wing aircraft with flapping wing drive
FR2765187B1
(en)
1997-06-25
1999-08-27
Onera (Off Nat Aerospatiale)
BLADE PROFILE FOR AIRCRAFT ROTATING AIRCRAFT AND BLADE FOR ROTATING AIRCRAFT WITH SUCH A PROFILE
FR2768121B1
(en)
*
1997-09-10
1999-11-19
Onera (Off Nat Aerospatiale)
BLADE WITH REDUCED SOUND SIGNATURE, FOR AIRCRAFT TURNING WING, AND TURNING WING COMPRISING SUCH A BLADE
CN100486867C
(en)
*
2004-02-02
2009-05-13
章洪
Helirota plane
US7854593B2
(en)
*
2006-02-16
2010-12-21
Sikorsky Aircraft Corporation
Airfoil for a helicopter rotor blade
US8016566B2
(en)
*
2006-08-03
2011-09-13
Bell Helicopter Textron Inc.
High performance low noise rotorcraft blade aerodynamic design
US7762785B2
(en)
*
2007-12-10
2010-07-27
Sikorsky Aircraft Corporation
Main rotor blade with integral tip section
KR101275846B1
(en)
*
2010-11-30
2013-06-17
부산대학교 산학협력단
Rotor blade with protruding trailing edge
WO2016053408A1
(en)
2014-10-01
2016-04-07
Sikorsky Aircraft Corporation
Acoustic signature variation of aircraft utilizing a clutch
US10822076B2
(en)
2014-10-01
2020-11-03
Sikorsky Aircraft Corporation
Dual rotor, rotary wing aircraft
EP3112258B1
(en)
*
2015-07-03
2017-09-13
AIRBUS HELICOPTERS DEUTSCHLAND GmbH
Airfoils for rotor blades of rotary wing aircrafts
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB615318A
(en)
*
1944-06-07
1949-01-05
Glenn L Martin Co
Improvements in or relating to low drag airfoils
GB1391940A
(en)
*
1971-09-22
1975-04-23
United Aircraft Corp
Helicopter rotor blades
US3728045A
(en)
*
1971-09-22
1973-04-17
United Aircraft Corp
Helicopter blade
US3822105A
(en)
*
1971-09-22
1974-07-02
United Aircraft Corp
Helicopter blade
US3952971A
(en)
*
1971-11-09
1976-04-27
The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration
Airfoil shape for flight at subsonic speeds
FR2261177A1
(en)
*
1974-02-20
1975-09-12
Boeing Co
Aerodynamic rotor blade for helicopter – has an airfoil profile with component which has thickness distribution based on NACA series
US3999888A
(en)
*
1975-06-25
1976-12-28
United Technologies Corporation
Composite tip weight attachment
1977
1977-11-11
US
US05/850,765
patent/US4142837A/en
not_active
Expired – Lifetime
1978
1978-11-01
AU
AU41239/78A
patent/AU524387B2/en
not_active
Expired
1978-11-06
IL
IL55887A
patent/IL55887A/en
unknown
1978-11-07
NO
NO783728A
patent/NO144953C/en
unknown
1978-11-09
BE
BE191628A
patent/BE871886A/en
not_active
IP Right Cessation
1978-11-09
CA
CA316,033A
patent/CA1092581A/en
not_active
Expired
1978-11-10
BR
BR7807428A
patent/BR7807428A/en
unknown
1978-11-10
FR
FR7831779A
patent/FR2408518A1/en
active
Granted
1978-11-10
JP
JP13875878A
patent/JPS5475796A/en
active
Granted
1978-11-10
IT
IT29666/78A
patent/IT1101063B/en
active
1978-11-11
DE
DE19782849067
patent/DE2849067A1/en
active
Granted
1978-11-13
GB
GB7844216A
patent/GB2011333B/en
not_active
Expired
Also Published As
Publication number
Publication date
BE871886A
(en)
1979-03-01
DE2849067C2
(en)
1987-07-30
IL55887A
(en)
1980-12-31
FR2408518B1
(en)
1983-08-26
JPS5475796A
(en)
1979-06-16
NO144953C
(en)
1981-12-16
AU524387B2
(en)
1982-09-16
NO144953B
(en)
1981-09-07
NO783728L
(en)
1979-05-14
GB2011333B
(en)
1982-02-24
IT1101063B
(en)
1985-09-28
US4142837A
(en)
1979-03-06
CA1092581A
(en)
1980-12-30
FR2408518A1
(en)
1979-06-08
AU4123978A
(en)
1979-05-17
DE2849067A1
(en)
1979-05-17
JPS6133760B2
(en)
1986-08-04
IT7829666D0
(en)
1978-11-10
BR7807428A
(en)
1979-07-24
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Legal Events
Date
Code
Title
Description
1998-12-02
PE20
Patent expired after termination of 20 years
Effective date:
19981112
