GB809949A - Improvements in or relating to aircraft undercarriages - Google Patents
Improvements in or relating to aircraft undercarriagesInfo
- Publication number
- GB809949A GB809949A GB1063656A GB1063656A GB809949A GB 809949 A GB809949 A GB 809949A GB 1063656 A GB1063656 A GB 1063656A GB 1063656 A GB1063656 A GB 1063656A GB 809949 A GB809949 A GB 809949A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leg
- link
- pivot
- pivoted
- bogie
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
809,949. Aircraft undercarriages. BRITISH MESSIER Ltd. April 3, 1957 [April 6, 1956], No. 10636/56. Class 4. An aircraft bogie undercarriage comprises a main leg 11 pivoted at its upper end to the aircraft, a trailing link 13 pivoted at its forward end to the lower end of the leg, a bogie frame 14 pivoted between its ends at 16 to the rear end of the trailing link and carrying land wheels 17, 18 (preferably in transverse pairs) fore and aft of its pivot, and a telescopic shock absorber 19 adjacent the leg and pivoted at its upper end to the leg and at its lower end to the bogie frame or to the link rearwardly of the pivot between the link and the leg, whereby raising and lowering of the bogie on the link with respect to the leg causes contraction and extension of the shock absorber. The leg is transversely pivoted at 24 to a member 25 pivoted to an aircraft wing on a fore-and-aft retraction spindle 27. Retraction is effected by a jack (not shown) acting to rotate member 25. A telescopic side-stay is connected between the wing and the leg. A drag strut 30 is connected between the wing and the leg as described in Specification 809,950. A telescopic bogie damper 21 is connected between the leg and the nose of the bogie, so that the bogie is in a nose-up attitude on touch down. Brake compensating links are provided, a pair 37 (one shown) connected between non rotary parts of the front wheel brakes and one arm of a bell crank lever 34, and a single link 38 connected between non rotary parts of the rear wheel brakes and the other arm of the bell crank lever. A link 39 extends between the other arm of the bell crank lever and a pivot on the leg 11, so as to be parallel to the trailing link. Each link 37, 38 is disposed so that it axis and the line joining the pivot of the leg and bogie frame to the corresponding wheel axis, intersect at ground level as shown. Fig. 1 shows the shock absorber 19 pivoted on the pivot 16 between the leg and the trailing link, but to compensate for the moment about pivot 16 caused by the rolling resistance of the wheels, the shock absorber may be connected to the bogie frame rearwardly of pivot 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1063656A GB809949A (en) | 1956-04-06 | 1956-04-06 | Improvements in or relating to aircraft undercarriages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1063656A GB809949A (en) | 1956-04-06 | 1956-04-06 | Improvements in or relating to aircraft undercarriages |
Publications (1)
Publication Number | Publication Date |
---|---|
GB809949A true GB809949A (en) | 1959-03-04 |
Family
ID=9971522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1063656A Expired GB809949A (en) | 1956-04-06 | 1956-04-06 | Improvements in or relating to aircraft undercarriages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB809949A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2489054A (en) * | 2011-04-13 | 2012-09-19 | Messier Dowty Ltd | Aircraft landing gear having stabilising means to react to brake torque |
GB2493675A (en) * | 2011-04-13 | 2013-02-13 | Messier Dowty Ltd | Aircraft landing gear having stabilising means to react to brake torque |
CN110001936A (en) * | 2019-05-17 | 2019-07-12 | 中国科学院合肥物质科学研究院 | A kind of imitative bird multi-rotor unmanned aerial vehicle undercarriage |
US11912400B2 (en) | 2021-09-28 | 2024-02-27 | Airbus Operations Limited | Landing gear stay |
-
1956
- 1956-04-06 GB GB1063656A patent/GB809949A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2489054A (en) * | 2011-04-13 | 2012-09-19 | Messier Dowty Ltd | Aircraft landing gear having stabilising means to react to brake torque |
WO2012140404A1 (en) | 2011-04-13 | 2012-10-18 | Messier-Dowty Limited | Aircraft landing gear |
GB2493675A (en) * | 2011-04-13 | 2013-02-13 | Messier Dowty Ltd | Aircraft landing gear having stabilising means to react to brake torque |
GB2489054B (en) * | 2011-04-13 | 2013-08-07 | Messier Dowty Ltd | Aircraft landing gear |
GB2493675B (en) * | 2011-04-13 | 2013-08-07 | Messier Dowty Ltd | Aircraft landing gear |
CN103596841A (en) * | 2011-04-13 | 2014-02-19 | 梅西耶-道提有限公司 | Aircraft landing gear |
CN103596841B (en) * | 2011-04-13 | 2016-04-13 | 梅西耶-道提有限公司 | Undercarriage |
CN110001936A (en) * | 2019-05-17 | 2019-07-12 | 中国科学院合肥物质科学研究院 | A kind of imitative bird multi-rotor unmanned aerial vehicle undercarriage |
CN110001936B (en) * | 2019-05-17 | 2023-11-21 | 中国科学院合肥物质科学研究院 | Bird-like multi-rotor unmanned aerial vehicle landing gear |
US11912400B2 (en) | 2021-09-28 | 2024-02-27 | Airbus Operations Limited | Landing gear stay |
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