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used to lift heavy or awkward loads. As aerial cranes, helicopters carry loads connected to long cables or slings in order to place heavy equipment when other methods are not available or economically feasible, or when the job must be accomplished in remote or inaccessible areas, such as the tops of
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Skycranes were used in 1972 when the
Chesapeake Bay Bridge connecting Maryland and the Eastern Shore was being built to bring concrete and other supplies to the construction site. In 1993, an Erickson aerial Skycrane, normally used for hauling lumber in Oregon, was used to remove the “Statue of
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Freedom” from the top of the
Capitol dome in Washington, D.C. The statue was placed on the ground while it was being cleaned and restored before being gently returned to the top of the dome, once again with a Skycrane.
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for heavy lifting of downed aircraft and artillery pieces, the S-64 Skycrane was nothing more than just enough airframe to attach two powerful engines, the main and tail rotors and transmissions, a cockpit, and a
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tall buildings or the top of a hill or mountain, far from the nearest road. Helicopters were first used as aerial cranes in the 1950s, but it was not until the 1960s that their popularity in
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industry to lift large trees out of rugged terrain where vehicles are not able to reach, or where environmental concerns prohibit roadbuilding. These operations are referred to as
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helicopters were the first, lightweight aerial cranes to be used in the early 1950s. It was never capable of carrying more than a few hundred pounds of cargo. In the 1960s, the
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aircraft have been used to carry even heavier payloads than their lighter predecessors. But the heaviest loads required a pure aerial crane. The answer came from
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replaced the Bell 47 because of its larger power margin. Even today, S-58s can be found carrying medium-size loads. The 1960s also brought the
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as helicopter manufacturers focused on selling commercial versions of their military aircraft. For instance,
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and other industries began to catch on. The most consistent use of helicopters as aerial cranes is in the
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was used for light loads. But there continued to be a demand for aircraft able to lift even larger loads
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because of the long, single sling line used to carry the load.
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Larger helicopters became commercially available after the
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The Wiley
Dictionary of Civil Engineering and Construction
231:"Helicopter Training on the job: Flying the Line"
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163:. Originally produced for the military as the
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244:. March 2007. Accessed on 1 November 2008.
107:Learn how and when to remove this message
24:has been in service for over five decades
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211:Sikorsky S-64 Skycrane
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22:Sikorsky S-64 Skycrane
276:-Retrieved 2016-09-05
201:Sikorsky CH-37 Mojave
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206:Sikorsky CH-54 Tarhe
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172:and winch system.
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43:construction
34:flying crane
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30:aerial crane
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304:Helicopters
287:"Skycranes"
191:Kamov Ka-27
186:Kaman K-MAX
165:CH-54 Tarhe
142:Vietnam War
217:References
170:cargo hook
38:helicopter
196:Mil Mi-10
153:Model 234
149:Model 107
128:Bell 211
298:Category
234:Archived
157:Sikorsky
135:Bell 206
51:longline
130:HueyTug
120:Bell 47
57:History
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