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

5650 thumbnail picture
Radio Acoustic Ranging bomb making. TNT bombs were sound source for RAR. RAR work on OCEANOGRAPHER
Georges Bank, New England coast 1930
5651 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
5652 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
5653 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
5654 thumbnail picture
A schematic view of RAR and echo-sounding. Diagram in public information brochure
1934
5655 thumbnail picture
The Launch PRATT - an RAR hydrophone boat. Worked as station boat while HYDROGRAPHER conducted sounding operations
Louisiana, Morgan City July 1935
5656 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
5657 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
5658 thumbnail picture
Sono-radio-buoy for RAR work on pier --- Almon Vincent design. Forerunner of anti-submarine warfare sonobuoys
5659 thumbnail picture
Almon Vincent tuning the antenna circuit on sono-radio-buoy. RAR work on the GUIDE
1936
5660 thumbnail picture
Railroad car couplers used to anchor RAR hydrophone. On the OCEANOGRAPHER
1939
5661 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
5662 thumbnail picture
Sono-radio-buoy developed by Almon Vincent for RAR work. Buoy deployed from the GUIDE
1936
5663 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
5664 thumbnail picture
Inspecting the electronics package of a sono-radio-buoy. RAR work on the OCEANOGRAPHER
North Carolina coast 1940
5665 thumbnail picture
Holding RAR bomb. In 1944 issue of the magazine "The Military Engineer"
5666 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
5667 thumbnail picture
RAR bomb being exploded astern of GUIDE. North shore of Unimak Island
Unimak Island, Aleutian Islands, Alaska 1940
5668 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
5669 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
5670 thumbnail picture
Shoran was high frequency line-of-sight system
1945
5671 thumbnail picture
Shipboard Shoran antenna from below. On EXPLORER
1945
5672 thumbnail picture
Shipboard Shoran antenna as viewed from bow. On EXPLORER
1945
5673 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
5674 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
5675 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
5676 thumbnail picture
Closeup of Shoran antenna mounted on radar antenna. Shoran array installed by party off of LYDONIA
Mt. Agamenticus, Maine 1946
5677 thumbnail picture
Shoran antenna installed on radar tower. Shoran array installed by party off of LYDONIA
Mt. Agamenticus, Maine 1946
5678 thumbnail picture
Shoran antenna installed on radar tower. Shoran array installed by party off of LYDONIA
Maine, Cape Elizabeth 1946
5679 thumbnail picture
Plotting range-range Shoran position with Odessey protractor. On LYDONIA
Gulf of Maine 1946
5680 thumbnail picture
A conceptual Shoran station layout. Circular lines of position with Shoran in range-range mode
Alaska, Buldir Island, Aleutian Islands 1944
5681 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
5682 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
5683 thumbnail picture
Shoran antenna at Cape Wrangell. Party off of SURVEYOR
AlaskaCape Wrangell, Attu Island, Aleutian Is. 1946
5684 thumbnail picture
Shoran station in Liberia. Combined operations party of George Morris. Shoran used to control airplane conducting photogrammetric operations
Liberia 1953
5685 thumbnail picture
Shoran station being unloaded through surf at Nushagak Bay. Party off of PATHFINDER. Photo No. 1 of sequence
Nushagak Bay, Alaska 1950
5686 thumbnail picture
Hauling Shoran gear up the cliff at Nushagak Bay. Party off of PATHFINDER. Photo No. 2 of sequence
Nushagak Bay, Alaska 1950
5687 thumbnail picture
Hauling Shoran gear up the cliff at Nushagak Bay. Party off of PATHFINDER. Photo No. 3 of sequence
Nushagak Bay, Alaska 1950
5688 thumbnail picture
Shoran equipped launch in the Beaufort Sea. Launch operating with the Arctic Field Party
Near Tigvariak Island, Beaufort Sea, Alaska 1950
5689 thumbnail picture
Inshore sextant fix hydrography as out of line-of-sight of Shoran. Launch off of EXPLORER
Alaska, Amchitka Island, Aleutian Islands 1949
5690 thumbnail picture
Shoran station Stem. Installed by party off of EXPLORER
Little Sitkin Island, Aleutian Islands, Alaska 1949
5691 thumbnail picture
Shoran installation at Port Clarence.
5692 thumbnail picture
Diagram of range-range navigation geometry. Hydrographic Manual
5693 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
5694 thumbnail picture
EPI antenna mast used in Bering Sea operations.
1951
5695 thumbnail picture
Carl Aslakson monitoring EPI receiver on HYDROGRAPHER. Field testing of EPI - first medium frequency survey navigation system. Invented within the Coast and Geodetic Survey
Gulf of Mexico August, 1948
5696 thumbnail picture
First field testing of Raydist on the SOSBEE. Medium frequency survey navigation system
Tampa Bay area, Florida 1954
5697 thumbnail picture
Raydist watch on the HYDROGRAPHER. Hydrographic surveying operations
Gulf of Mexico 1958
5698 thumbnail picture
Electronic survey equipment on HYDROGRAPHER. Field testing of electronic survey equipment
Gulf of Mexico 1959
5699 thumbnail picture
Setting up a Raydist tower. Base plate with tower and cable - tower assembled from 10-foot aluminum sections . Party off of wire drag vessels WAINWRIGHT and HILGARD. Photograph #1 of sequence
Texas coast 1965

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Last Updated:
November 10, 2017