GB489853A - Improvements relating to aerofoils - Google Patents

Improvements relating to aerofoils

Info

Publication number
GB489853A
GB489853A GB3229/37A GB322937A GB489853A GB 489853 A GB489853 A GB 489853A GB 3229/37 A GB3229/37 A GB 3229/37A GB 322937 A GB322937 A GB 322937A GB 489853 A GB489853 A GB 489853A
Authority
GB
United Kingdom
Prior art keywords
flap
links
pivots
wing
plunger
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
Application number
GB3229/37A
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
Application filed by Individual filed Critical Individual
Priority to GB3229/37A priority Critical patent/GB489853A/en
Publication of GB489853A publication Critical patent/GB489853A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • B64C9/14—Adjustable control surfaces or members, e.g. rudders forming slots
    • B64C9/16—Adjustable control surfaces or members, e.g. rudders forming slots at the rear of the wing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • B64C9/14—Adjustable control surfaces or members, e.g. rudders forming slots
    • B64C9/16—Adjustable control surfaces or members, e.g. rudders forming slots at the rear of the wing
    • B64C9/18—Adjustable control surfaces or members, e.g. rudders forming slots at the rear of the wing by single flaps
    • 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
    • Y02T50/30—Wing lift efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Surgical Instruments (AREA)

Abstract

489,853. Aircraft wing-flaps. MILES, F. G. Feb. 3, 1937, Nos. 3229 and 34147. [Class 4] An aircraft wing is provided with two flaps normally nested one above the other, each flap being adapted for alteration of angle of incidence relative to the main wing and at least one being supported on travelling mechanism adapted to displace it rearwardly relative to the main wing and to the other flap. In one form, Fig. 6, a split flap 3 is pivotally mounted at 2 below an extension flap 5 which is carried by mechanism comprising a hydraulic or screw jack of which the plunger 6 carries a pivot 7 for a lever 8 rigid with flap 5. To the end of plunger 6 is pivoted one of a pair of toggle links 9, 10 of which the other is pivoted to flap 5. The centre pivot 11 of the links is connected to a cable 12 passing through a fixed eye 13 in the wing and provided with a stop 12A such that after a certain rearward travel of the flap the cable is held to cause the toggle links to open and move the flap downward. A spring 14 serves to take up slack in the cable in the nested position of the flap. Spring means may be used to return the flap to neutral on the return stroke. The control mechanism of flap 3 may be so interconnected with that of flap 5 or may be such that the flap moves slightly downward when flap 5 is operated, in order to give the latter free passage. Plunger 6 may carry cam means serving to depress flap 3 and may be guided in rollers. In a modification, Fig. 8, the flaps are extended by lazy-tongs linkage having upper pivots 20, lower pivots 21, and intermediate pivots 22 disposed nearer to the lower than to the upper pivots so that rearward movement of the aftermost links is accompanied by downward movement. Various curved paths may be obtained by asymmetrical arrangement of these pivots. Links 23A, 23B carry pivot pins 23C, 23D. A flap 24 is pivoted on pin 23C and is formed with a cam slot 24A engaged by pin 23D. A second flap 25 which is adapted to nest below flap 24 is similarly mounted on links 23E, 23F. Extension of the linkage is by jack means of which the centre line is shown at 26. When fully extended the chord of the first flap is at an angle of 18¢‹ to the chord of the wing and that of the second flap is at 22‹ to that of the first.
GB3229/37A 1937-02-03 1937-02-03 Improvements relating to aerofoils Expired GB489853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3229/37A GB489853A (en) 1937-02-03 1937-02-03 Improvements relating to aerofoils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3229/37A GB489853A (en) 1937-02-03 1937-02-03 Improvements relating to aerofoils

Publications (1)

Publication Number Publication Date
GB489853A true GB489853A (en) 1938-08-03

Family

ID=9754384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3229/37A Expired GB489853A (en) 1937-02-03 1937-02-03 Improvements relating to aerofoils

Country Status (1)

Country Link
GB (1) GB489853A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856655A1 (en) * 2003-06-25 2004-12-31 Erick Herzberger RIGID WING WITH VARIABLE LIFT BY DEPLOYING A FLEXIBLE WING
WO2012114047A1 (en) * 2011-02-25 2012-08-30 Airbus Operations Aircraft with reduced environmental impact
GB2568731A (en) * 2017-11-24 2019-05-29 Airbus Operations Ltd Modifying the chord length of an aircraft wing
US10974816B2 (en) 2017-09-28 2021-04-13 The Boeing Company High-fowler flap actuation apparatus and related methods

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2856655A1 (en) * 2003-06-25 2004-12-31 Erick Herzberger RIGID WING WITH VARIABLE LIFT BY DEPLOYING A FLEXIBLE WING
WO2005000672A1 (en) * 2003-06-25 2005-01-06 Lisa Airplanes Rigid wing with variable sustentation due to deployment of a flexible wing
WO2012114047A1 (en) * 2011-02-25 2012-08-30 Airbus Operations Aircraft with reduced environmental impact
FR2971993A1 (en) * 2011-02-25 2012-08-31 Airbus Operations Sas AIRCRAFT WITH REDUCED ENVIRONMENTAL IMPACT
JP2014506545A (en) * 2011-02-25 2014-03-17 エアバス オペラシオン ソシエテ パ アクシオンス シンプリフィエ Aircraft with reduced environmental impact
US8714475B2 (en) 2011-02-25 2014-05-06 Airbus Operations Sas Aircraft with reduced environmental impact
US10974816B2 (en) 2017-09-28 2021-04-13 The Boeing Company High-fowler flap actuation apparatus and related methods
GB2568731A (en) * 2017-11-24 2019-05-29 Airbus Operations Ltd Modifying the chord length of an aircraft wing
GB2568731B (en) * 2017-11-24 2020-04-08 Airbus Operations Ltd Modifying the chord length of an aircraft wing

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