Helicopter patrol of transmission systems of West is saving time, money and manpower for Western utilities; after more than year of experimental, routine and emergency patrols over all types of terrain, helicopter has clearly demonstrated its safety, speed and adaptability for line patrol.
Helicopter earns acceptance
Elec West
Electrical West ; 101 , n 3
1948
3 pages
Aufsatz (Zeitschrift)
Englisch
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