Maybe of interest - this wireline services helicopter appears to be working a powerline. He’s too low for me to be watching with my PiAware but I bet that data is very cool - especially the map detail. The heading changes too. Bright yellow.
https://flightaware.com/live/flight/N5205G
https://flightaware.com/live/flight/N5205G/history/20200427/1356Z/tracklog