AU2002225941A1 - Aircraft with elliptical winglets - Google Patents

Aircraft with elliptical winglets

Info

Publication number
AU2002225941A1
AU2002225941A1 AU2002225941A AU2594102A AU2002225941A1 AU 2002225941 A1 AU2002225941 A1 AU 2002225941A1 AU 2002225941 A AU2002225941 A AU 2002225941A AU 2594102 A AU2594102 A AU 2594102A AU 2002225941 A1 AU2002225941 A1 AU 2002225941A1
Authority
AU
Australia
Prior art keywords
winglets
aircraft
wings
intersection
elliptical
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.)
Abandoned
Application number
AU2002225941A
Inventor
Fort F. Felker
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24951310&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2002225941(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of AU2002225941A1 publication Critical patent/AU2002225941A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C23/00—Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/06—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
    • B64C23/065—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips
    • B64C23/069—Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices at the wing tips using one or more wing tip airfoil devices, e.g. winglets, splines, wing tip fences or raked wingtips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/10—Drag reduction

Abstract

An aircraft with swept back wings has winglets (202) at the outer ends of its wings (200). The winglets (202) curve upwardly as they extend outwardly from their intersection (204) with the wings (200). The curvature of the winglets (202) at least approximates a conical section curvature, e.g. an elliptical based on an ellipse having a major axis that extends vertically and coincides with the intersection (204) of the outer end of the wing (200) and the inner end of the winglet (202).
AU2002225941A 2000-12-11 2001-12-05 Aircraft with elliptical winglets Abandoned AU2002225941A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/734,347 2000-12-11
US09/734,347 US6484968B2 (en) 2000-12-11 2000-12-11 Aircraft with elliptical winglets
PCT/US2001/046703 WO2002047979A2 (en) 2000-12-11 2001-12-05 Aircraft with elliptical winglets

Publications (1)

Publication Number Publication Date
AU2002225941A1 true AU2002225941A1 (en) 2002-06-24

Family

ID=24951310

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002225941A Abandoned AU2002225941A1 (en) 2000-12-11 2001-12-05 Aircraft with elliptical winglets

Country Status (7)

Country Link
US (1) US6484968B2 (en)
EP (1) EP1349778B1 (en)
AT (1) ATE354517T1 (en)
AU (1) AU2002225941A1 (en)
CA (1) CA2431488C (en)
DE (1) DE60126824T2 (en)
WO (1) WO2002047979A2 (en)

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DE10117721B4 (en) * 2001-04-09 2007-09-27 Gerd Heller Wingtip extension for a wing
GB0115130D0 (en) * 2001-06-21 2001-08-15 Bae Systems Plc A winglet
FR2841532B1 (en) * 2002-06-27 2004-12-17 Airbus France AIRCRAFT WITH ACTIVE WINGER TURN CONTROL
AU2003296688B2 (en) * 2003-01-02 2008-01-31 Aloys Wobben Rotor blade for a wind power plant
DE10302514B4 (en) * 2003-01-23 2008-12-18 Eads Deutschland Gmbh Fluid-mechanically effective surface of a moving in a fluid device, in particular an aircraft, in particular wing of an aircraft
US6886778B2 (en) * 2003-06-30 2005-05-03 The Boeing Company Efficient wing tip devices and methods for incorporating such devices into existing wing designs
GB0326228D0 (en) * 2003-11-10 2003-12-17 Airbus Uk Ltd Wing tip device
ITTO20040118A1 (en) * 2004-02-27 2004-05-27 Agusta Spa HELICOPTER
GB0420601D0 (en) * 2004-09-16 2004-10-20 Qinetiq Ltd Wing tip devices
US8544800B2 (en) * 2005-07-21 2013-10-01 The Boeing Company Integrated wingtip extensions for jet transport aircraft and other types of aircraft
GB0518755D0 (en) * 2005-09-14 2005-10-19 Airbus Uk Ltd Wing tip device
FR2894558A1 (en) * 2005-12-12 2007-06-15 Dassault Avions Wing for aircraft, has airfoil and winglet defining airfoil zone, winglet zone and connecting zone of winglet and airfoil, where flattened portion in part of connecting zone is central portion of upper surface of profile
US7644892B1 (en) * 2006-07-06 2010-01-12 Alford Jr Lionel D Blended winglet
DE102006055090A1 (en) * 2006-11-21 2008-05-29 Airbus Deutschland Gmbh Wing i.e. airfoil wing, end form for wing of commercial aircraft, has transition area arranged between wing and winglet, where local V-form changes continuously from wing to winglet in transition area
US7744038B2 (en) * 2007-06-15 2010-06-29 The Boeing Company Controllable winglets
GB0711942D0 (en) * 2007-06-21 2007-08-01 Airbus Uk Ltd Winglet
US7900876B2 (en) * 2007-08-09 2011-03-08 The Boeing Company Wingtip feathers, including forward swept feathers, and associated aircraft systems and methods
US20090084904A1 (en) * 2007-10-02 2009-04-02 The Boeing Company Wingtip Feathers, Including Paired, Fixed Feathers, and Associated Systems and Methods
US8128035B2 (en) * 2008-04-15 2012-03-06 The Boeing Company Winglets with recessed surfaces, and associated systems and methods
US9302766B2 (en) 2008-06-20 2016-04-05 Aviation Partners, Inc. Split blended winglet
WO2009155584A1 (en) * 2008-06-20 2009-12-23 Aviation Partners, Inc. Curved wing tip
DE102009019542A1 (en) * 2009-04-30 2010-11-11 Airbus Deutschland Gmbh Non-planar wing tail for airplanes of aircraft and wings with such wing tail
CA2761317A1 (en) * 2009-05-05 2010-11-11 Aerostar Aircraft Corporation Aircraft winglet design having a compound curve profile
US20110127383A1 (en) 2009-12-01 2011-06-02 Guida Associates Consulting, Inc. Active winglet
US9162755B2 (en) 2009-12-01 2015-10-20 Tamarack Aerospace Group, Inc. Multiple controllable airflow modification devices
WO2011127938A1 (en) 2010-04-12 2011-10-20 Airbus Operations Gmbh Fixed wing of an aircraft
GB201011843D0 (en) * 2010-07-14 2010-09-01 Airbus Operations Ltd Wing tip device
US8382041B1 (en) 2010-08-04 2013-02-26 The United States Of America As Represented By The Secretary Of The Air Force Rakelet
DE102012103704A1 (en) 2011-04-30 2012-10-31 General Electric Co. Winglet for a rotor wing of a wind turbine
DK3372493T3 (en) 2011-06-09 2019-12-09 Aviation Partners Inc THE PART-SHAPED MIXED WINGLET
EP2562084A1 (en) * 2011-08-25 2013-02-27 KPS Limited A kite for a system for extracting energy from the wind
GB201115026D0 (en) * 2011-08-31 2011-10-12 Airbus Operations Ltd Aircraft lighting device
CN102358417B (en) * 2011-09-02 2013-09-18 北京航空航天大学 Annular winglet of civil airliner wing
GB201201609D0 (en) * 2012-01-31 2012-03-14 Airbus Operations Ltd A wing fin of an aircraft
US9103325B2 (en) 2012-03-20 2015-08-11 General Electric Company Winglet for a wind turbine rotor blade
US8936219B2 (en) 2012-03-30 2015-01-20 The Boeing Company Performance-enhancing winglet system and method
US9567066B2 (en) * 2013-02-05 2017-02-14 Tamarack Aerospace Group, Inc. Controllable airflow modification device periodic load control
KR101325593B1 (en) 2013-05-03 2013-11-06 국방과학연구소 Under water body with end-plate attatached to partially movable rudder
US10562613B2 (en) * 2013-12-04 2020-02-18 Tamarack Aerospace Group, Inc. Adjustable lift modification wingtip
EP3077281A4 (en) * 2013-12-05 2017-07-26 Tamarack Aerospace Group, Inc. Wingtip device
GB2522245A (en) * 2014-01-20 2015-07-22 Airbus Operations Ltd A curved winglet
US9511850B2 (en) 2014-04-12 2016-12-06 The Boeing Company Wing tip device for an aircraft wing
US9637225B1 (en) 2015-11-16 2017-05-02 Textron Innovations Inc. Aircraft winglet
US11148788B2 (en) 2016-02-12 2021-10-19 Textron Innovation, Inc. Curved wingtip for aircraft
EP3269635A1 (en) * 2016-07-12 2018-01-17 The Aircraft Performance Company UG Airplane wing
GB2559771A (en) * 2017-02-17 2018-08-22 Airbus Operations Ltd A rib arrangement in a wing tip device
GB2559968A (en) 2017-02-22 2018-08-29 Airbus Operations Ltd A winglet and method of designing a winglet
EP3511243B1 (en) * 2018-01-15 2021-12-29 The Aircraft Performance Company GmbH Airplane wing

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Publication number Priority date Publication date Assignee Title
US4017041A (en) 1976-01-12 1977-04-12 Nelson Wilbur C Airfoil tip vortex control
US4190219A (en) 1977-05-17 1980-02-26 Lockheed Corporation Vortex diffuser
US4205810A (en) 1977-12-19 1980-06-03 The Boeing Company Minimum drag wing configuration for aircraft operating at transonic speeds
US4245804B1 (en) 1977-12-19 1993-12-14 K. Ishimitsu Kichio Minimum drag wing configuration for aircraft operating at transonic speeds
US4240597A (en) * 1978-08-28 1980-12-23 Gates Learjet Corporation Wing with improved leading edge for aircraft
US4382569A (en) * 1979-12-26 1983-05-10 Grumman Aerospace Corporation Wing tip flow control
GB8310224D0 (en) 1983-04-15 1983-05-18 British Aerospace Wing tip arrangement
US4674709A (en) * 1983-06-20 1987-06-23 Welles Stanley W Airframe design
US4605183A (en) * 1984-03-22 1986-08-12 Gabriel Albert L Swing wing glider
IL101069A (en) 1991-02-25 1996-09-12 Valsan Partners Purchase N Y System for increasing airplane fuel mileage and airplane wing modification kit
US5102068A (en) * 1991-02-25 1992-04-07 Gratzer Louis B Spiroid-tipped wing
US5275358A (en) * 1991-08-02 1994-01-04 The Boeing Company Wing/winglet configurations and methods for aircraft
JPH06144384A (en) * 1992-11-12 1994-05-24 Mitsubishi Heavy Ind Ltd Roll control device for aircraft
US5348253A (en) * 1993-02-01 1994-09-20 Gratzer Louis B Blended winglet
DE29621652U1 (en) * 1996-12-13 1998-04-16 Zepf Hans Peter Aerodynamic design for high aspect aircraft with positive wing sweep
US5961068A (en) * 1997-10-23 1999-10-05 Northrop Grumman Corporation Aerodynamic control effector

Also Published As

Publication number Publication date
US6484968B2 (en) 2002-11-26
WO2002047979A3 (en) 2002-12-12
US20020092947A1 (en) 2002-07-18
CA2431488C (en) 2011-04-19
WO2002047979A2 (en) 2002-06-20
DE60126824D1 (en) 2007-04-05
EP1349778A2 (en) 2003-10-08
ATE354517T1 (en) 2007-03-15
EP1349778A4 (en) 2006-06-07
EP1349778B1 (en) 2007-02-21
DE60126824T2 (en) 2007-10-31
CA2431488A1 (en) 2002-06-20

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