Two new screw luffing, full revolving, lower cranes built by Dravo Corp, Pittsburgh, for installation in yards of Newport News Shipbuilding and Drydock Co, Newport News, Va; each of cranes has 125-ft boom and main hoist hook with operating capacity of 20 tons at radius of 62 ft and 10 tons at radius of 93 ft; auxiliary hoist provides capacity of 8 tons at radius of 113 ft.
Shipyard handling units
Steel
Steel ; 106 , n 5
1940
Aufsatz (Zeitschrift)
Englisch
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