COGLAD: A COAST GUARD LORAN-C ASSIST DEVICE

The Coast Guard Loran-C Assist Device (COGLAD) was developed at the request of the Systems Development Branch of the United States Coast Guard to enhance the shipboard use of Loran-C. The Atlantic coast and most of the Great Lakes are within the range of high quality ground-wave Loran-C signals; however, some form of data processing is necessary to make the awkward hyperbolic grid system of Loran-C easier to use. Using a commercial Loran-C receiver, a programmable calculator, and an interface unit, COGLAD provides the navigator with heading angle, relative position information, velocity information, and a real-time plot of ship's position on standard navigation charts. COGLAD is currently installed on a buoy tender operating out of Port Huron, Michigan, and has been used successfully as a navigation aid since January 1971. (Author)

• Corporate Authors:

  Applied Physics Laboratory

  Johns Hopkins University
  Silver Spring, MD  United States  20910
• Authors:
  • Moore, R C
  • Edwards, C R
  • Burek, R K
  • Wagner, G D
• Publication Date: 1973-3

Media Info

• Pagination: 184 p.

Subject/Index Terms

• TRT Terms: Data communications; Information display systems; Information processing; Logic circuits; Loran; Loran C; Navigation computers; Navigation systems; Navigational aids; Position fixing; Radar beacons; Shipping
• Identifier Terms: United States Coast Guard
• Old TRIS Terms: An/spn-45; Cg; Coast guard loran c assist device; Coglad coast guard loran c assist device; Loran equipment; Position finding
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00051047
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: APL/JHU-CP-026 Tech Rpt
• Contract Numbers: N00017-72-C-4401
• Files: TRIS
• Created Date: Mar 12 1974 12:00AM