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This report describes a flight test probe into Alaska to determine the extent of usable signals in space from Loran C stations Port Clarence, Narrow Cape, and Tok, Alaska. Flight measurements indicated adequate signal strength exists from the three Loran C stations over the routes flown. Therefore, it is feasible to dual rate Port Clarence as a new secondary in the Gulf of Alaska Loran C chain. Dual rating Port Clarence will increase the area where Loran C navigation is possible by providing proper chain structure. This largely increased area will be located in the middle to southern interior of Alaska. The tests were conducted in the summer of 1985 and in the winter of 1985/86.
This report contains the description and results of a Loran-C flight test program conducted in the State of Alaska. The testing period was from August 1982 to September 1982. The purpose of the flight test was to identify applicable Loran-C accuracy data for the Alaskan air taxi and light aircraft operators so that a Supplemental Type Certificate (STC) can be issued in the Alaska Region for the Loran-C system tested (Teledyne TDL-711). Navigation system errors were quantified for the Loran-C unit tested. The errors were computed from knowledge of position calculated from ground truth data and the indicated position of the navigator. Signal coverage, bias and flight technical error data were also obtained. Multilateration ground truth, photographic ground truth, and data acquisition systems were carried aboard the test aircraft. The tests were concentrated in the southwest part of the Alaskan mainland. An interconnecting network of routes west of Anchorage and south of a line from Fairbanks to Kotzebue were flown for data collection.
This report describes flight tests conducted by the Federal Aviation Administration (FAA) Technical Center to measure Loran C coverage in Alaska. The flight tests were conducted within the state of Alaska after Loran C station Port Clarence was added to the Gulf of Alaska chain by dual rating the station. Flight tests were conducted in June 1987. Keywords: Loran C, Alaska, and Port Clarence, Alaska. (RH).
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.