The authors <of, respectively, Profiline GmbH and Ocean Consult GmbH> review trends in the design of unmanned remote-controlled vehicles for underwater use, and mention that several RCVs are now being designed for the type of work envisaged for "Medusa", a small self- propelled RCV being developed by a study group from the authors' firms. This vehicle is intended for "track-orientated" tasks such as reconnoitring pipeline routes, tracing buried pipelines, and pipeline inspection and monitoring, in water depths to 600m. A prototype Medusa is expected to be completed at the end of 1983 and would be tested in the "GUSI" simulator <see Abs.No. 61580, Feb. 84>; tests at sea, in cooperation with a customer, would follow. The Medusa has a streamlined main body 2000mm long by 300mm in diameter, constructed of plastics and aluminium <with vacuum-type connections between the different sections> and weighing 140 kg. Vertical propulsion is provided by a 750W <10 kp thrust> unit within the body, and ahead/astern propulsion by two 1.5-kW <20 kp thrust> units attached, one on each side, near the bottom of the body and separately controllable; ahead speed is 6 knots. Control, from the support ship, is microprocessor-based and there is automatic compensation for underwater currents. A triaxial cable connects the ship to the RCV and, in addition to supplying power <8 kVA> and providing for control and information signals, it is used for lowering and hoisting the RCV <the cable, 10 mm in diameter, has a tensile strength of 500 kg>. The body houses a TV camera and other equipment for the vehicle's operations, there is a second TV camera mounted in a vertical tail-fin, and various modules <as required for the task in hand> can be fitted below the body.

  • Supplemental Notes:
    • Hansa, 120 <1983>, p.1411 <No.15/16, Aug.> (2 pp., 1 diag., 1 phot.)
  • Authors:
    • Gantenbrink, R
    • Victor, H
  • Publication Date: 1983


  • German

Subject/Index Terms

  • Old TRIS Terms: Medusa
  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685607
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM