GB663245A - Improvements in or relating to aircraft undercarriages - Google Patents
Improvements in or relating to aircraft undercarriagesInfo
- Publication number
- GB663245A GB663245A GB1039949A GB1039949A GB663245A GB 663245 A GB663245 A GB 663245A GB 1039949 A GB1039949 A GB 1039949A GB 1039949 A GB1039949 A GB 1039949A GB 663245 A GB663245 A GB 663245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bogie
- jack
- undercarriage
- leg
- lost
- 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)
- Fluid-Damping Devices (AREA)
Abstract
663,245. Undercarriages. BRITISH MESSIER, Ltd. March 14, 1950 [April 19, 1949], No. 10399/49. Class 4. In an undercarriage of the bogie type in which a. fluid-operated jack is provided to vary the attitude of the bogie in relation to the undercarriage leg, a lost-motion connection is provided between the jack and one of the undercarriage elements such that no force is transmitted between the jack and the element until the lost-motion has been talcen up, such lostmotion being sufficient to allow canting of the bogie adequate for normal taxying. As shown in Fig, 1 the piston rod 19 of the jack 16 is connected to a lever 20 pivoted on the bogie frame 15, and movable between stops 22, 25 on the bogie, giving the desired lost-motion. When the jack is operated the outward movement of the piston rod 19 has no effect on the bogie until the lever 20 engages the stop 22. Oscillations of the bogie frame are controlled by an oleo-pneumatic damper 30 connected between the frame and undercarriage leg 12, and arranged to move through a dead-centre position during retraction and extension of the undercarriage. Stops 26, 27 on the bogie 15 and leg 12 come into contact when the undercarriage is fully retracted, Fig. 2 (not shown). In the modification according to Fig. 3 the rod 45 of the jack 42 is connected to the bogie by torque links 35, 36 and a lostmotion sector plate 40 pivoted on the leg 12, a curved slot. 41 in the plate being engaged by a pin 38 at the end of a. short arm 37 integral with the link 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1039949A GB663245A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to aircraft undercarriages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1039949A GB663245A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to aircraft undercarriages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB663245A true GB663245A (en) | 1951-12-19 |
Family
ID=9967107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1039949A Expired GB663245A (en) | 1949-04-19 | 1949-04-19 | Improvements in or relating to aircraft undercarriages |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB663245A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2750134A (en) * | 1952-04-17 | 1956-06-12 | Lockheed Aircraft Corp | Multiple wheel main landing gear |
| US2826381A (en) * | 1954-03-26 | 1958-03-11 | Lockheed Aircraft Corp | Landing gear for aircraft |
| US2896884A (en) * | 1954-07-06 | 1959-07-28 | Electro Hydraulics Ltd | Retractable aircraft landing gear |
| US4359199A (en) * | 1979-12-05 | 1982-11-16 | The United States Of America As Represented By The Secretary Of The Air Force | Soft landing gear |
| US5086995A (en) * | 1990-04-09 | 1992-02-11 | The Boeing Company | Aft cantilevered wing landing gear for heavy airplane with aft center of gravity |
| US5460340A (en) * | 1992-11-12 | 1995-10-24 | British Aerospace Public Limited Company | Auxiliary control of aircraft landing gear movement |
| GB2428650B (en) * | 2005-08-04 | 2011-01-12 | Messier Dowty Ltd | Landing gear |
-
1949
- 1949-04-19 GB GB1039949A patent/GB663245A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2750134A (en) * | 1952-04-17 | 1956-06-12 | Lockheed Aircraft Corp | Multiple wheel main landing gear |
| US2826381A (en) * | 1954-03-26 | 1958-03-11 | Lockheed Aircraft Corp | Landing gear for aircraft |
| US2896884A (en) * | 1954-07-06 | 1959-07-28 | Electro Hydraulics Ltd | Retractable aircraft landing gear |
| US4359199A (en) * | 1979-12-05 | 1982-11-16 | The United States Of America As Represented By The Secretary Of The Air Force | Soft landing gear |
| US5086995A (en) * | 1990-04-09 | 1992-02-11 | The Boeing Company | Aft cantilevered wing landing gear for heavy airplane with aft center of gravity |
| US5460340A (en) * | 1992-11-12 | 1995-10-24 | British Aerospace Public Limited Company | Auxiliary control of aircraft landing gear movement |
| GB2428650B (en) * | 2005-08-04 | 2011-01-12 | Messier Dowty Ltd | Landing gear |
| US8104711B2 (en) | 2005-08-04 | 2012-01-31 | Messier-Dowty Limited | Landing gear |
| US8376272B2 (en) | 2005-08-04 | 2013-02-19 | Messier-Dowty Limited | Landing gear |
| US8382032B2 (en) | 2005-08-04 | 2013-02-26 | Messier-Dowty Limited | Landing gear |
| US8398020B2 (en) | 2005-08-04 | 2013-03-19 | Messier-Dowty Limited | Landing gear |
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