LORAN-C POSITIONING IN PRINCE WILLIAM SOUND

The nationwide interest and concern with regard to recent tanker groundings has focused attention on the Valdez Alaska pipeline/tanker terminal. A joint Federal/State/Industry plan was developed for conducting demonstrations of various aspects of tanker navigation, pilotage, safety, and ship handling procedures in Prince William Sound and Valdez. The demonstration was carried out in April 1977. The U.S. Coast Guard cooperated in the navigation and positioning demonstrations by accelerating the completion of the Gulf of Alaska Loran-C Chain; by providing an interim Vessel Traffic System for Valdez Arm and the Port of Valdez; by providing a modern Loran-C receiver for use on the demonstration vessel; and, in cooperation with Teledyne Systems Company, by providing Loran-C retransmission equipment for monitoring the tanker's position. This paper addresses only the navigation and position monitoring aspects of the demonstrations. The preparations for the demonstrations, including a pre-survey of the Loran-C grid; the shipboard and shore-based Loran-C equipment installations, and the data collection procedures are described. Results and conclusions are presented.

• Supplemental Notes:
  • Presented at the National Marine Navigation Meeting, Maritime Institute of Technology and Graduate Studies, Linthicum Heights, Maryland, October 31-November 1, 1977.
• Corporate Authors:

  Institute of Navigation

  815 14th Street, NW
  Washington, DC  United States  20005
• Authors:
  • Roeber, J F
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: p. 1-5
• Serial:
  • Publication of: American Concrete Institute
  • Publisher: American Concrete Institute (ACI)

Subject/Index Terms

• TRT Terms: Data collection; Loran C; Navigation radar; Navigational aids; Position fixing; Ship operations; Tankers; Vessel traffic control; Water traffic
• Old TRIS Terms: Position finding; Tanker operations
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00170506
• Record Type: Publication
• Source Agency: Institute of Navigation
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM