GB957314A - Improvements in aircraft-lifting and -sustaining rotors - Google Patents

Improvements in aircraft-lifting and -sustaining rotors

Info

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
Application number
GB40562/60A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB40562/60A priority Critical patent/GB957314A/en
Publication of GB957314A publication Critical patent/GB957314A/en
Expired legal-status Critical Current

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.
GB40562/60A 1960-11-25 1960-11-25 Improvements in aircraft-lifting and -sustaining rotors Expired GB957314A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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