GB1199618A - Improvements in or relating to Large-capacity Aircraft and more particularly to their Main Landing-Gear - Google Patents

Improvements in or relating to Large-capacity Aircraft and more particularly to their Main Landing-Gear

Info

Publication number
GB1199618A
GB1199618A GB5283367A GB5283367A GB1199618A GB 1199618 A GB1199618 A GB 1199618A GB 5283367 A GB5283367 A GB 5283367A GB 5283367 A GB5283367 A GB 5283367A GB 1199618 A GB1199618 A GB 1199618A
Authority
GB
United Kingdom
Prior art keywords
retract
wheels
units
cavities
aircraft
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
GB5283367A
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.)
Sud Aviation Societe Nationale de Constructions Aerdnaettiques
Original Assignee
Sud Aviation Societe Nationale de Constructions Aerdnaettiques
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 Sud Aviation Societe Nationale de Constructions Aerdnaettiques filed Critical Sud Aviation Societe Nationale de Constructions Aerdnaettiques
Publication of GB1199618A publication Critical patent/GB1199618A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/34—Alighting gear characterised by elements which contact the ground or similar surface  wheeled type, e.g. multi-wheeled bogies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/22—Operating mechanisms fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

1,199,618. Aircraft undercarriages. SUD-AVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONATIQUES. 21 Nov., 1967 [8 Dec., 1966], No. 52833/67. Heading B7G. A low-wing aircraft has a retractable steerable forward undercarriage and a main landing gear comprising three units substantially side by side each comprising an independent mechanism carrying a shock-absorber 31, 46 and groundengaging elements (e.g. wheels 4a and 4c) so arranged that each unit has a similar load/ deflection relationship, the main undercarriage being retractable so that when retracted the ground-engaging elements are housed within the fuselage. When lowered the wheels 4a may be slightly behind or in front of the wheels 4c. In an illustrated embodiment the lateral units, carrying wheels 4c, retract sideways inboard, and the central units retract forwards. The lateral units retract pivoting at 40 when hydraulic jacks 51 and 54 extend and retract, respectively (Fig. 10). The central units retract when hydraulic jacks 34 and 39 retract (Fig. 11). The cavities 6, 13 into which the wheels 4a and 4c retract are below the pressurized floor of the aircraft fuselage 1. The cavities 6, 13 are separated by fore-aft beams 14 which carry closure flaps at their lower ends. The support mechanism for the lateral units retracts into cavities in the wings 2, the apertures for these cavities being closed partially by flaps carried by the mechanism and partially by flaps pivoted to the wing outboard of the pivot 40.
GB5283367A 1966-12-08 1967-11-21 Improvements in or relating to Large-capacity Aircraft and more particularly to their Main Landing-Gear Expired GB1199618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR86627A FR1513398A (en) 1966-12-08 1966-12-08 Improvements made to large tonnage aircraft and in particular to their main landing gear

Publications (1)

Publication Number Publication Date
GB1199618A true GB1199618A (en) 1970-07-22

Family

ID=8622148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5283367A Expired GB1199618A (en) 1966-12-08 1967-11-21 Improvements in or relating to Large-capacity Aircraft and more particularly to their Main Landing-Gear

Country Status (3)

Country Link
DE (1) DE1531458A1 (en)
FR (1) FR1513398A (en)
GB (1) GB1199618A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113844643A (en) * 2021-11-04 2021-12-28 中国商用飞机有限责任公司 Front wheel turning load shedding mechanism

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2185537B1 (en) * 1972-05-26 1974-09-27 Messier Hispano Sa
FR2443369A1 (en) * 1978-12-07 1980-07-04 Messier Hispano Sa Retractable wheel assembly for vehicle - includes pivoted leg with three stays and is ram operated
US4917334A (en) * 1988-09-30 1990-04-17 The Boeing Company Multiwheeled trailing type landing gear assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113844643A (en) * 2021-11-04 2021-12-28 中国商用飞机有限责任公司 Front wheel turning load shedding mechanism

Also Published As

Publication number Publication date
FR1513398A (en) 1968-02-16
DE1531458A1 (en) 1970-02-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee