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NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Catalog of Images

5050 thumbnail picture
Transferring the hydrophone block and cable to launch for planting. Radio acoustic ranging operations on the GUIDE
San Clemente Island area, California 1925
5051 thumbnail picture
Launch laying the cable from hydrophone to the shore station. Radio acoustic ranging operations on the GUIDE
San Clemente Island area, California 1925
5052 thumbnail picture
Shore Radio Acoustic Ranging Station on San Clemente Island. Radio acoustic ranging operations on the GUIDE
San Clemente Island area, California 1925
5053 thumbnail picture
Radio operator at work at Radio Acoustic Ranging shore station KGHS. Radio acoustic ranging operations on the SURVEYOR
Alaska, Kodiak Island area 1929
5054 thumbnail picture
The first Odessey Protractor. This instrument was used to plot intersecting ranges from two RAR stations. Invented while Herman Odessey attached to DISCOVERER. Variations of this instrument were used for plotting positions for over 60 years
1929
5055 thumbnail picture
Radio Acoustic Ranging bomb making. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5056 thumbnail picture
Radio Acoustic Ranging bomb making. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5057 thumbnail picture
Radio Acoustic Ranging - igniting the bomb and timing fuse. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5058 thumbnail picture
Timing the fuse on a quart bomb during RAR operations. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5059 thumbnail picture
Quart bombs exploding during RAR operations. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5060 thumbnail picture
A schematic view of RAR and echo-sounding. Diagram in public information brochure
1934
5061 thumbnail picture
The Launch PRATT - an RAR hydrophone boat. Worked as station boat while HYDROGRAPHER conducted sounding operations
Louisiana, Morgan City July 1935
5062 thumbnail picture
A sono-radio-buoy developed to eliminate need for station boats. RAR operations in the Gulf of Mexico. Forerunner of Anti-submarine warfare sonobuoys
1936
5063 thumbnail picture
Electronics package of sono-radio-buoy for RAR. This instrument was developed by Almon Vincent on the GUIDE. Forerunner of Anti-submarine warfare sonobuoys
1936
5064 thumbnail picture
Sono-radio-buoy for RAR work on pier --- Almon Vincent design. Forerunner of anti-submarine warfare sonobuoys
5065 thumbnail picture
Almon Vincent tuning the antenna circuit on sono-radio-buoy. RAR work on the GUIDE
1936
5066 thumbnail picture
Railroad car couplers used to anchor RAR hydrophone. On the OCEANOGRAPHER
1939
5067 thumbnail picture
Vincent type sono-radio-buoy being deployed from the GUIDE. RAR operations on north coast of Unimak Island
North coast of Unimak Island, Aleutian Islands 1939
5068 thumbnail picture
Sono-radio-buoy developed by Almon Vincent for RAR work. Buoy deployed from the GUIDE
1936
5069 thumbnail picture
Sono-radio-buoy deployed in the Aleutians for RAR work. Buoy deployed from the PIONEER
Islands of the Four Mountains, Aleutian Islands 1940
5070 thumbnail picture
Inspecting the electronics package of a sono-radio-buoy. RAR work on the OCEANOGRAPHER
North Carolina coast 1940
5071 thumbnail picture
Holding RAR bomb. In 1944 issue of the magazine "The Military Engineer"
5072 thumbnail picture
RAR bomb being exploded astern of EXPLORER. In vicinity of Islands of the Four Mountains
Islands of the Four Mountains, Aleutian Islands 1940
5073 thumbnail picture
RAR bomb being exploded astern of GUIDE. North shore of Unimak Island
Unimak Island, Aleutian Islands, Alaska 1940
5074 thumbnail picture
"Gee" or Shoran hyperbolic navigation lattice over France. Allies installed electronic navigation systems to guide bombers. Adapted to hydrographic survey needs at end of war
France, Eastern 1944
5075 thumbnail picture
Front page of first report detailing tests of Shoran by C&GS. Clarence Burmister spearheaded efforts to adapt Shoran to survey use. Tests run in vicinity of Attu Island
Alaska, Attu Island, Aleutian Islands 1945
5076 thumbnail picture
Shoran was high frequency line-of-sight system
1945
5077 thumbnail picture
Shipboard Shoran antenna from below. On EXPLORER
1945
5078 thumbnail picture
Shipboard Shoran antenna as viewed from bow. On EXPLORER
1945
5079 thumbnail picture
Shore station Shoran antenna being raised. First electronic navigation antenna ever raised by C&GS. Party off of EXPLORER. Photo No. 1 of sequence
Alaska, Attu Island, Aleutian Islands 1945
5080 thumbnail picture
Shore station Shoran antenna being raised. First electronic navigation antenna ever raised by C&GS. Party off of EXPLORER. Photo No. 2 of sequence
Alaska, Attu Island, Aleutian Islands 1945
5081 thumbnail picture
Range-range navigation lattice generated by Attu-Semichi stations. First purely electronic navigation lattice used by C&GS. Electronic navigation lattice developed by party off of EXPLORER
Alaska, Attu Island, Aleutian Islands 1945
5082 thumbnail picture
Closeup of Shoran antenna mounted on radar antenna. Shoran array installed by party off of LYDONIA
Mt. Agamenticus, Maine 1946
5083 thumbnail picture
Shoran antenna installed on radar tower. Shoran array installed by party off of LYDONIA
Mt. Agamenticus, Maine 1946
5084 thumbnail picture
Shoran antenna installed on radar tower. Shoran array installed by party off of LYDONIA
Maine, Cape Elizabeth 1946
5085 thumbnail picture
Plotting range-range Shoran position with Odessey protractor. On LYDONIA
Gulf of Maine 1946
5086 thumbnail picture
A conceptual Shoran station layout. Circular lines of position with Shoran in range-range mode
Alaska, Buldir Island, Aleutian Islands 1944
5087 thumbnail picture
Mast and antenna system for Shoran installation. First electronic navigation antenna ever raised by C&GS. Party off of EXPLORER. Photo No. 3 of sequence
Alaska, Attu Island, Aleutian Islands 1945
5088 thumbnail picture
Mast and antenna system for Shoran installation. First electronic navigation antenna ever raised by C&GS. Party off of EXPLORER. Photo No. 4 of sequence
Alaska, Attu Island, Aleutian Islands 1945
5089 thumbnail picture
Shoran antenna at Cape Wrangell. Party off of SURVEYOR
AlaskaCape Wrangell, Attu Island, Aleutian Is. 1946
5090 thumbnail picture
Shoran station in Liberia. Combined operations party of George Morris. Shoran used to control airplane conducting photogrammetric operations
Liberia 1953
5091 thumbnail picture
Shoran station being unloaded through surf at Nushagak Bay. Party off of PATHFINDER. Photo No. 1 of sequence
Nushagak Bay, Alaska 1950
5092 thumbnail picture
Hauling Shoran gear up the cliff at Nushagak Bay. Party off of PATHFINDER. Photo No. 2 of sequence
Nushagak Bay, Alaska 1950
5093 thumbnail picture
Hauling Shoran gear up the cliff at Nushagak Bay. Party off of PATHFINDER. Photo No. 3 of sequence
Nushagak Bay, Alaska 1950
5094 thumbnail picture
Shoran equipped launch in the Beaufort Sea. Launch operating with the Arctic Field Party
Near Tigvariak Island, Beaufort Sea, Alaska 1950
5095 thumbnail picture
Inshore sextant fix hydrography as out of line-of-sight of Shoran. Launch off of EXPLORER
Alaska, Amchitka Island, Aleutian Islands 1949
5096 thumbnail picture
Shoran station Stem. Installed by party off of EXPLORER
Little Sitkin Island, Aleutian Islands, Alaska 1949
5097 thumbnail picture
Shoran installation at Port Clarence.
5098 thumbnail picture
Diagram of range-range navigation geometry. Hydrographic Manual
5099 thumbnail picture
Erecting EPI (Electronic Position Indicator) antenna. EPI was a medium frequency system that was useable out to 200 miles. Invented within the Coast and Geodetic Survey
Nunivak Island, Bering Sea, Alaska 1951

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Last Updated:
May 12, 2014