This is a new development by Muirhead Ltd of Beckenham, England. Designated the New Multra K-373, it has been introduced to take advantage of modern techniques to simplify existing designs and dependent upon the control system, which determines at every instant the angle of attack of the fins. For optimum performance it is necessary for the computed control signal to comprise components proportional to roll angle, roll velocity and roll acceleration. Since the lift generated by the fins is proportional to the square of the ship's speed it is necessary to reduce the maximum fin angle at speeds in excess of the design speed to prevent instability and overloading. This function is performed electronically on the combined signal before the signal is passed to the main amplifier which provides outputs for up to four fins. The equipment has been designed to accommodate any type of servo valve likely to be used to control the flow rate in the hydraulic cylinders of vane motors used to operate the fin.

  • Corporate Authors:

    Whitehall Technical Press Limited

    Wrotham Place
    Wrotham, Sevenoaks, Kent ME14 1PE,   England 
  • Authors:
    • Tann, A
  • Publication Date: 1971-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00032157
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Apr 21 1972 12:00AM