SAN FRANCISCO (KGO) -- It's not a bird, it's not a plane, but if you look up while in San Francisco's financial district Sunday night, you just might see two low-flying helicopters. The aircraft will ...

The noise is barely audible at first, just a low rumble somewhere in the distance. Within seconds it rises to a growl, then swells to a roar, a predator lurking just overhead. The sound makes windows ...

Helicopters have one of the most recognizable sounds in aviation. The signature "whop whop" or deep thumping sound announces its arrival long before it appears in the sky. It's a sound so iconic, it's ...

Military helicopters buzzed southeast Bellevue and Issaquah Tuesday evening, into the early hours of Wednesday. FlightRadar24 showed they were Boeing MH-47G Chinook helicopters belonging to the army, ...

This week, residents of Monroe Township could be impacted by low flying helicopters with men dangling from them.

If you're paying attention to the pattern of when it happens, you may have guessed the answer. If not, let South Bend International Airport tell you.

YORK COUNTY, Pa. (WHTM) — Low-flying helicopters are back once again today, conducting spraying operations across the Midstate. According to the York County PA Office of Emergency Management, an ...

CLEVELAND, Ohio — Northeast Ohio residents may notice low-flying helicopters carrying large saws this fall, as FirstEnergy begins trimming trees and vegetation along high-voltage transmission lines in ...