Lake Superior Helicopters offers a bird's-eye view of the city and the harbor. The company also partners with Lake Superior College to provide flight instruction for aspiring pilots.

There was one thing that Queen Elizabeth II was really afraid of. However, other members of the British royal family were ...

Helicopters are set apart from other aircraft in a very big way: the rotors. There's the main rotor and the tail rotor. Ever wonder what the tail rotor does?

The aircraft was on a sightseeing flight when it suddenly broke apart in midair, its rotor blades falling separately toward the water. By Patrick McGeehan When rescue crews reached the passenger ...

He also said the mast — which connects the main rotor hub to the transmission — could have disconnected entirely. "Someone on the maintenance side maybe didn't tighten a bolt up, or a part ...

Divers were still searching for the helicopter’s main rotor, main transmission ... occurs when excessive flapping of the rotor blades causes the hub to contact the rotor mast.

Guzzetti noted the incident has the marks of mast bumping — when the rotor hub strikes the main rotor mast — but the wreckage needs to be combed over to confirm.

"I have no details, but it appears the main rotor detached and sliced the ... Mast bumping is a helicopter issue where the rotor hub strikes the mast, often in two-bladed, teetering rotor systems ...

He also said the mast — which connects the main rotor hub to the transmission — could have disconnected entirely. "Someone on the maintenance side maybe didn't tighten a bolt up, or a part just failed ...

To visualize the relationship of the mast and the rotor hub, says Robert Joslin ... “Turbulence is usually the main culprit in mast bumping,” Brauchle says. The phenomenon can also occur ...

A helicopter carrying a Spanish family on a sightseeing trip crashed into the Hudson River on Thursday afternoon, killing all six people on board — including three children — in what officials ...