GB792680A - Improvements in aircraft undercarriages - Google Patents
Improvements in aircraft undercarriagesInfo
- Publication number
- GB792680A GB792680A GB2244655A GB2244655A GB792680A GB 792680 A GB792680 A GB 792680A GB 2244655 A GB2244655 A GB 2244655A GB 2244655 A GB2244655 A GB 2244655A GB 792680 A GB792680 A GB 792680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- valve
- skis
- cylinders
- strut
- 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
- B64C25/52—Skis or runners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
792,680. Aircraft skis. ALL AMERICAN ENGINEERING CO. Aug. 4, 1955, No. 22446/55. Class 4. An aircraft landing gear comprises a strut depending from the fuselage, a hydroplaning surface pivoted to the strut, a pilot operated fluid actuated trim cylinder connected to the member for selecting and up- or down-trim position and an over-riding control for selecting free trim. In Fig. 2, a land wheel C and a water ski 12 slotted to receive the wheel are mounted on a shock absorbing strut 16, 17, the latter bearing a projection 18. A hydraulic piston 19 and cylinder 20 extends between the projection 18 and the strut 12. Fig. 5 shows the hydraulic control system for an undercarriage having two struts and skis. A control valve 23 has one port connected by a conduit 21 to the upper parts of cylinders 20, and a second port is connected by conduit 22 to the lower parts of cylinders 20. A third port leads by conduits 24, 30 to a fluid reservoir R, and a fourth port is connected to one port of a valve 29. A second port of the latter is also connected to conduit 30, and a third port is blanked off at 29a. The fourth port is connected to a pressure conduit 33 fitted with a gauge 35 and an accumulator 34 and fed from the reservoir by a hand pump 32. With the valve 29 in the position shown in full lines, the cylinders will be moved relative to the pistons to one extreme position or the other, depending on the position of valve 23, and the skis assume a corresponding up- or down-trim attitude. With valve 29 in the position shown dotted, the cylinders are free to move relative to the pistons, subject to viscous damping, irrespective of the position of valve 23, and the skis can oscillate subject to a damping effect.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2244655A GB792680A (en) | 1955-08-04 | 1955-08-04 | Improvements in aircraft undercarriages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2244655A GB792680A (en) | 1955-08-04 | 1955-08-04 | Improvements in aircraft undercarriages |
Publications (1)
Publication Number | Publication Date |
---|---|
GB792680A true GB792680A (en) | 1958-04-02 |
Family
ID=10179484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2244655A Expired GB792680A (en) | 1955-08-04 | 1955-08-04 | Improvements in aircraft undercarriages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB792680A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427942A1 (en) * | 1978-06-08 | 1980-01-04 | Pingon Pierre De | ARTICULATED CATAMARAN |
WO2012175756A1 (en) | 2011-06-20 | 2012-12-27 | Aerovision Vehiculos Aereos, S.L. | Device whereby an aircraft can land on water |
-
1955
- 1955-08-04 GB GB2244655A patent/GB792680A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2427942A1 (en) * | 1978-06-08 | 1980-01-04 | Pingon Pierre De | ARTICULATED CATAMARAN |
WO1980000018A1 (en) * | 1978-06-08 | 1980-01-10 | Pingon Pierre Joseph | Articulated catamaran |
WO2012175756A1 (en) | 2011-06-20 | 2012-12-27 | Aerovision Vehiculos Aereos, S.L. | Device whereby an aircraft can land on water |
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