Accession Number : AD0765935

Title :   COGLAD: A Coast Guard Loran-C Assist Device.

Descriptive Note : Technical rept.,

Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s) : Moore, R. C. ; Edwards, C. R. ; Burek, R. K. ; Wagner, G. D.

Report Date : MAR 1973

Pagination or Media Count : 184

Abstract : 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)

Descriptors :   *LORAN, *MARINE TRANSPORTATION, DATA PROCESSING, NAVIGATIONAL AIDS, POSITION FINDING, RADAR BEACONS, DATA TRANSMISSION SYSTEMS, LOGIC CIRCUITS, DISPLAY SYSTEMS, COAST GUARD.

Subject Categories : Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE