British electricity authorities used Hiller helicopter to run 1280-ft span of 66,000-v transmission line across densely wooded valley in Malvern Hills, to provide reinforcement and alternative supply for 20,000 to 30,000 Herefordshire consumers; job was done in less than 2 min.
Laying electric cable across difficult terrain
Am Helicopter
American Helicopter ; 25 , n 3
1952
Article (Journal)
English
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Laying submarine cable across the Mississippi
Engineering Index Backfile | 1924
|Advanced mobility in difficult terrain
Online Contents | 2004
|