The images, reportedly captured in April, show a compound helicopter with coaxial main rotors and pusher propeller, which bears similarity to Sikorsky’s ...

Piston-engined helicopters use a special fuel called avgas, or aviation gasoline, because the engine requires a high-octane fuel with a rating of 100 or more.

Combined with the complex system of controls on a helicopter, factors like wind and ground effect make hovering one of the toughest skills to learn.

Illinois man, Missouri man killed in helicopter-barge crash near Alton ...

A helicopter exploded mid-air after making contact with power lines above the Mississippi River on Thursday. These are the victims.

A car bomb and an attack on a police helicopter in Colombia have killed at least 17 people, including police officers ...

A portion of the Mississippi River remained closed Friday as the FAA and NTSB continued their investigations into a deadly helicopter crash near Alton.

Helicopter firefighting training from 58 years ago in San Luis Obispo County, California, showed how crews shaped modern fire response efforts.

The images, reportedly captured in April, show a compound helicopter with coaxial main rotors and pusher propeller, which bears similarity to Sikorsky's X2 Technology. Few days after photos ...

Russia’s attack helicopter fleet has felt the effects of the changing battlefield since the country’s full-scale invasion of Ukraine. Moscow has lost about 100 attack helicopters since 2022.

Alton helicopter-barge crash: 2 contractors dead, river reopens as investigations begin Ameren contractor, J.F. Electric employee killed in helicopter crash on Mississippi River ...

Close call with passenger jet happened after Army helicopter tried to land without clearance, preliminary report confirms ...