On the cover: An MD Helicopters MD 500D operated by Rotor Power holds a lineman in place to coil vibration dampeners onto a newly installed optical ground wire in central New Mexico. The dual-purpose wire combines the functions of grounding and communications. Read more about how helicopters help maintain the power and communication services essential to modern life in photographer Mark Bennett’s photo essay on p. 42.
Photographer: Mark Bennett
Helicopter: MD Helicopters MD 500D
Location: New Mexico