GB877505A - Improvements relating to aircraft undercarriages - Google Patents

Improvements relating to aircraft undercarriages

Info

Publication number
GB877505A
GB877505A GB16907/58A GB1690758A GB877505A GB 877505 A GB877505 A GB 877505A GB 16907/58 A GB16907/58 A GB 16907/58A GB 1690758 A GB1690758 A GB 1690758A GB 877505 A GB877505 A GB 877505A
Authority
GB
United Kingdom
Prior art keywords
wheel
shock absorber
aircraft
bracket
pivot
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
GB16907/58A
Inventor
Arthur Adrian John Willitt
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.)
Dowty Rotol Ltd
Original Assignee
Dowty Rotol Ltd
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 Dowty Rotol Ltd filed Critical Dowty Rotol Ltd
Priority to GB16907/58A priority Critical patent/GB877505A/en
Publication of GB877505A publication Critical patent/GB877505A/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 
    • B64C25/58—Arrangements or adaptations of shock-absorbers or springs
    • 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
    • B64C25/12—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like sideways
    • B64C2025/125—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like sideways into the fuselage, e.g. main landing gear pivotally retracting into or extending out of the fuselage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

877,505. Aircraft undercarriages. DOWTY ROTOL Ltd. May 22, 1959 [May 27, 1958], No. 16907/58. Class 4. A main aircraft undercarriage component comprises two wheel mountings adapted for fixing to an aircraft in tandem one behind the other, one mounting being rigid and having a fixed axle carrying at least one yieldable wheel, and the other mounting being movable against the resistance of a shock absorber and having an axle carrying at least one yieldable wheel which, when the shock absorber is unloaded, lies below the wheel or wheels carried by the fixed axle, but which is movable under ground load from this lower position against shock absorber resistance to a level at which the wheel or wheels carried by the fixed axle also engages the ground. A pad 11 is attached to each lower corner of an aircraft fuselage (not shown) to enclose a tandem undercarriage each comprising a front bracket 16 socketted at 19 to a projection from a fuselage structural member and a rear bracket 17 similarly socketted at 21, the two brackets being connected by a beam 18. Bracket 16 carries a pivot 22 for a wheelsupporting arm 23 which.is locked in the downposition shown by a collapsible bracing strut 27, secured in its extended position by a lock 36 automatically freed by initial movement of a retraction jack 34. Bracket 17 carries a pivot 40 for a wheel-supporting arm 41 and a further pivot 51 for a bell-crank lever 49 which has an upper pivotal connection 52 for a retraction jack 54 and a lower pivotal connection for the body of a shock absorber 46, the piston rod of which is connected at 44 to arm 41. Reaction loads on the line of the shock absorber axis are taken by trunnions 57 which seat in a semi-circular recess 58 formed in bracket 17 and are retained therein by a pivoted latch 61 operatively connected with jack 54. With both undercarriages extended as shown the rear wheel 14 is below the front wheel 13 so that landing shocks are reacted by the rear wheel only, contraction of shock absorber 46 bringing wheel 14 into the chain dotted position 14<SP>11</SP> so that both wheels support the aircraft during ground running.
GB16907/58A 1958-05-27 1958-05-27 Improvements relating to aircraft undercarriages Expired GB877505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16907/58A GB877505A (en) 1958-05-27 1958-05-27 Improvements relating to aircraft undercarriages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16907/58A GB877505A (en) 1958-05-27 1958-05-27 Improvements relating to aircraft undercarriages

Publications (1)

Publication Number Publication Date
GB877505A true GB877505A (en) 1961-09-13

Family

ID=10085827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16907/58A Expired GB877505A (en) 1958-05-27 1958-05-27 Improvements relating to aircraft undercarriages

Country Status (1)

Country Link
GB (1) GB877505A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220262B (en) * 1963-09-28 1966-06-30 Dornier Werke Gmbh Rocker arm chassis for aircraft landing gears
DE1228938B (en) * 1963-08-26 1966-11-17 Dowty Rotol Ltd Nose wheel tandem landing gear
FR2501153A1 (en) * 1981-03-05 1982-09-10 Messier Hispano Sa TANDEM WHEEL FLUSH LANDING TRAIN
EP0062564A1 (en) * 1981-04-08 1982-10-13 Messier-Hispano-Bugatti (S.A) Tandem undercarriage
EP0165836A1 (en) * 1984-05-15 1985-12-27 Messier-Hispano-Bugatti (S.A) Landing gear, in particular with tandem wheels and independent shock absorbers
US4917334A (en) * 1988-09-30 1990-04-17 The Boeing Company Multiwheeled trailing type landing gear assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228938B (en) * 1963-08-26 1966-11-17 Dowty Rotol Ltd Nose wheel tandem landing gear
DE1220262B (en) * 1963-09-28 1966-06-30 Dornier Werke Gmbh Rocker arm chassis for aircraft landing gears
FR2501153A1 (en) * 1981-03-05 1982-09-10 Messier Hispano Sa TANDEM WHEEL FLUSH LANDING TRAIN
EP0062564A1 (en) * 1981-04-08 1982-10-13 Messier-Hispano-Bugatti (S.A) Tandem undercarriage
FR2503662A1 (en) * 1981-04-08 1982-10-15 Messier Hispano Sa LANDING TRAIN AS TANDEM
EP0165836A1 (en) * 1984-05-15 1985-12-27 Messier-Hispano-Bugatti (S.A) Landing gear, in particular with tandem wheels and independent shock absorbers
US4917334A (en) * 1988-09-30 1990-04-17 The Boeing Company Multiwheeled trailing type landing gear assembly

Similar Documents

Publication Publication Date Title
US3322376A (en) Retractable undercarriages for aircraft
US3899147A (en) Trailing-wheel undercarriage train
GB877505A (en) Improvements relating to aircraft undercarriages
US3831967A (en) Wheel suspension for vehicles
US2862724A (en) By-pass arrangement for vehicle suspension
US2811326A (en) Retractable aircraft landing gear
US3195840A (en) Aircraft landing gear
US3041020A (en) Aircraft undercarriage
US3642300A (en) Bomblift trailer suspension system
US2471603A (en) Retractable mounting and locking device for the wheels of aircraft
GB896054A (en) Improvements relating to bogie undercarriages for aircraft
US3346218A (en) Retraction of fuselage under-carriages with wheels arranged in diabolo mounting
GB779305A (en) Improvements in or relating to vehicle wheel mounting assemblies
US2842326A (en) Aircraft undercarriage
US3032297A (en) Aircraft landing gear with tandem wheels
ES357493A1 (en) Undercarriages
US3091418A (en) Aircraft alighting gear
GB650547A (en) Retractable landing gear for aircraft
US1955142A (en) Shock absorbing landing gear
US2333981A (en) Retractable landing gear for aircraft
GB1024455A (en) Retractable undercarriages for aircraft
GB984775A (en) Improvements in or relating to retractable undercarriages for aircraft
GB809949A (en) Improvements in or relating to aircraft undercarriages
GB797105A (en) Retractable landing gear for aircraft
US2308573A (en) Landing gear for aircraft