GB957314A - Improvements in aircraft-lifting and -sustaining rotors - Google Patents
Improvements in aircraft-lifting and -sustaining rotorsInfo
- Publication number
- GB957314A GB957314A GB40562/60A GB4056260A GB957314A GB 957314 A GB957314 A GB 957314A GB 40562/60 A GB40562/60 A GB 40562/60A GB 4056260 A GB4056260 A GB 4056260A GB 957314 A GB957314 A GB 957314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axis
- angle
- rotor
- hub
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
- Toys (AREA)
Abstract
957,314. Helicopter rotor systems. J. G. WEIR, and C. D. CHEATER. Feb. 8, 1962 [Nov. 25, 1960], No. 40562/60. Heading B7W. An aircraft-lifting and -sustaining rotor has at least two blades 32, 34 each freely articulated to hub 24, 26 by a single pivot 28, 30 whose axis intersects the hub axis at right angles, the spanwise axis of each blade extending substantially from the hub axis at an angle (#) to the pivot axis and when the blade is in the trailing position, Fig. 2, in which the spanwise and pivots axes are in a plane at right angles to the rotor axis, it has a preset mean pitch angle (α). Preferably angle (#) should not exceed 18 degrees and angle (α) should be in the range 6-18 degrees. In Fig. 1, two pairs of blades 32, 34 and 44, 46 are mounted on arms 24, 26 and 36, 38 of coaxial hubs driven in contrarotation from engine 22 through gears 16, 18, 20 and shafts 12, 14. For pitch and roll control by tilting the rotor head, Fig. 4, not shown, the hubs are connected to shafts 12, 14 by constant velocity universal joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB40562/60A GB957314A (en) | 1960-11-25 | 1960-11-25 | Improvements in aircraft-lifting and -sustaining rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB40562/60A GB957314A (en) | 1960-11-25 | 1960-11-25 | Improvements in aircraft-lifting and -sustaining rotors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB957314A true GB957314A (en) | 1964-05-06 |
Family
ID=10415520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40562/60A Expired GB957314A (en) | 1960-11-25 | 1960-11-25 | Improvements in aircraft-lifting and -sustaining rotors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB957314A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356150A (en) * | 1967-04-27 | 1967-12-05 | Mark A Ruszczycky | Mechanism for deflection of a contrarotating propeller system |
| US3637321A (en) * | 1968-12-04 | 1972-01-25 | Andrei Vladimirovich Nekrasov | Tail rotor of a helicopter |
| US4154557A (en) * | 1976-08-25 | 1979-05-15 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Helicopter rotor structure |
| WO2022241974A1 (en) * | 2021-05-20 | 2022-11-24 | 广东汇天航空航天科技有限公司 | Tilting structure and aircraft |
-
1960
- 1960-11-25 GB GB40562/60A patent/GB957314A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356150A (en) * | 1967-04-27 | 1967-12-05 | Mark A Ruszczycky | Mechanism for deflection of a contrarotating propeller system |
| US3637321A (en) * | 1968-12-04 | 1972-01-25 | Andrei Vladimirovich Nekrasov | Tail rotor of a helicopter |
| US4154557A (en) * | 1976-08-25 | 1979-05-15 | Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung | Helicopter rotor structure |
| WO2022241974A1 (en) * | 2021-05-20 | 2022-11-24 | 广东汇天航空航天科技有限公司 | Tilting structure and aircraft |
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