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Soundings above Niagara Falls obtained by helicopter and kytoons
Difficult problem of taking soundings in Cascades just above Horseshoe Falls in Canadian Channel was solved by use of helicopter which dropped weighted line; transitman on shore took readings on target fixed 50 ft above sounding weight.
Soundings above Niagara Falls obtained by helicopter and kytoons
Difficult problem of taking soundings in Cascades just above Horseshoe Falls in Canadian Channel was solved by use of helicopter which dropped weighted line; transitman on shore took readings on target fixed 50 ft above sounding weight.
Soundings above Niagara Falls obtained by helicopter and kytoons
Civ Eng (NY)
Bane, F.P. (author)
1951
4 pages
Article (Journal)
English
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