A few nice Helicopter transmission images I found:

LVYT-1_152_091112

Image by Western Area Power Admin
LOVELL-YELLOWTAIL NO. 1 AND NO. 2 115-KV T.L. REBUILD – PHASE 1

Sept. 11, 2012, No. 1 line: The helicopter pilot is pulling in the center hard line in the 16-mile section.

Photo by Bob Kemp

Helicopter transmission work

Image by Valard LP
Valard has trained helicopter linemen; here, they work on the Bruce to Milton 500-kV transmission project in Ontario in 2012