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

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