Maintenance of transmission lines by helicopter

SUCCESSFUL USE of the transport helicopter in Korea and in the Canadian Rockies of British Columbia is focusing attention on the potentialities of this craft as a transport vehicle. With such successful operations in mind, a study was indicated of the feasibility of using a commercially available 8-passenger 1,500-pound payload-carrying transport helicopter for transmission-line maintenance and repair work. The system studied was the 1,558-mile transmission system of the Parker-Davis Project of the Bureau of Reclamation, in Arizona, California, and Nevada.