GB777273A - Improvements in or relating to aircraft controls - Google Patents

Improvements in or relating to aircraft controls

Info

Publication number
GB777273A
GB777273A GB36147/54A GB3614754A GB777273A GB 777273 A GB777273 A GB 777273A GB 36147/54 A GB36147/54 A GB 36147/54A GB 3614754 A GB3614754 A GB 3614754A GB 777273 A GB777273 A GB 777273A
Authority
GB
United Kingdom
Prior art keywords
pilot
control
aircraft
linkage
operate
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
GB36147/54A
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.)
HM Hobson Ltd
Original Assignee
HM Hobson Ltd
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 HM Hobson Ltd filed Critical HM Hobson Ltd
Priority to GB36147/54A priority Critical patent/GB777273A/en
Publication of GB777273A publication Critical patent/GB777273A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
    • B64C13/24—Transmitting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Control Devices (AREA)

Abstract

777,273. Controlling aircraft. HOBSON, Ltd., H. M., SMITH, C. P., and GLAZE, S. G. Oct. 19, 1955 [Dec. 14, 1954], No. 36147/54. Class 4. [Also in Group XXIX] A power operated control system for aircraft of the kind comprising a servomotor for actuating a control surface of the aircraft and a relay actuable by electrical signals transmitted thereto under the control of the pilot's control member to operate the input member of the servomotor comprises a normally inoperative mechanical linkage having at its opposite ends lost motion connections with the pilot's control member and with the input member respectively and means operating automatically, in the event of failure in the electrical system, to take up the lost motion at both ends of the linkage to permit manual operation of the input member by the linkage. As shown, the servomotor is of the kind having a fixed piston 11 and a movable cylinder 12 connected to a control surface 10 of an aircraft and is controlled by a pilot valve 13 which is operable by an electromechanical transducer 27 to which signals from a potentiometer 26 actuated by the pilot's control member 16 or from an auto-pilot and/or an autostabilizer are fed through an amplifier. A potentiometer 28 operated by movement of the cylinder 12 sends an electrical feed back signal to the amplifier. A mechanical link 19 has a lost motion connection at one end with the member 16 and at the other end with the pilot valve 13. In the event of failure of the electric supply, solenoids 24, 25 are de-energized to allow springs to operate members 22, 23 to connect the member 19 positively with the control member 16 and the valve 13 so that the pilot can operate the latter directly. Should the valve 13 stick, movement of the member 16 by the pilot will ultimately take up the lost motion with the member 19 which will then operate one of a pair of switches 30 to break the circuit to the solenoids 24, 25 and cause the locks 22, 23 to engage. Additional switches 31, 32 are so connected with the switches 30 that engagement of the locks 22,_23 does not take place should the pilot, during normal operation of the electrical system, move the control member sufficiently to displace the linkage 19 and actuate one of the switches 30. Springs 17 for centering the control column are provided.
GB36147/54A 1954-12-14 1954-12-14 Improvements in or relating to aircraft controls Expired GB777273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36147/54A GB777273A (en) 1954-12-14 1954-12-14 Improvements in or relating to aircraft controls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36147/54A GB777273A (en) 1954-12-14 1954-12-14 Improvements in or relating to aircraft controls

Publications (1)

Publication Number Publication Date
GB777273A true GB777273A (en) 1957-06-19

Family

ID=10385429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36147/54A Expired GB777273A (en) 1954-12-14 1954-12-14 Improvements in or relating to aircraft controls

Country Status (1)

Country Link
GB (1) GB777273A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137300A1 (en) * 1971-05-18 1972-12-29 Aerospatiale
GB2196588A (en) * 1986-09-12 1988-05-05 Messerschmitt Boelkow Blohm Rudder control arrangement for aircraft
US4762294A (en) * 1986-09-12 1988-08-09 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Elevator control system especially for an aircraft
US4765568A (en) * 1986-09-12 1988-08-23 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Method and system for controlling the elevator assemblies of an aircraft
EP2947005A1 (en) * 2014-05-20 2015-11-25 Mecaer Aviation Group S.p.A. Aircraft hybrid flight control system
FR3031340A1 (en) * 2015-01-06 2016-07-08 Airbus Helicopters SERVO CONTROL AND AIRCRAFT EQUIPPED WITH SUCH SERVOCAMMANDE

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137300A1 (en) * 1971-05-18 1972-12-29 Aerospatiale
GB2196588A (en) * 1986-09-12 1988-05-05 Messerschmitt Boelkow Blohm Rudder control arrangement for aircraft
US4759515A (en) * 1986-09-12 1988-07-26 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Drive control for a vertical rudder of an aircraft
US4762294A (en) * 1986-09-12 1988-08-09 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Elevator control system especially for an aircraft
US4765568A (en) * 1986-09-12 1988-08-23 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Method and system for controlling the elevator assemblies of an aircraft
GB2196588B (en) * 1986-09-12 1990-06-20 Messerschmitt Boelkow Blohm Rudder control arrangement for aircraft
EP2947005A1 (en) * 2014-05-20 2015-11-25 Mecaer Aviation Group S.p.A. Aircraft hybrid flight control system
US10000275B2 (en) 2014-05-20 2018-06-19 Mecaer Aviation Group S.P.A. Aircraft hybrid flight control system
FR3031340A1 (en) * 2015-01-06 2016-07-08 Airbus Helicopters SERVO CONTROL AND AIRCRAFT EQUIPPED WITH SUCH SERVOCAMMANDE
EP3042847A1 (en) 2015-01-06 2016-07-13 Airbus Helicopters A servo-control and an aircraft having such a servo-control
US9732769B2 (en) 2015-01-06 2017-08-15 Airbus Helicopters Servo-control and an aircraft having such a servo-control

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