Helicopters made a big difference in World War II, but some have gone unnoticed. Here are the five that should be recognized and their specs.

Emergency crews respond to the crash site near the Potomac River after a passenger jet collided ... jet collided in midair with a military helicopter Sikorsky H-60 while on approach to Runway ...

29 (UPI) --An American Airlines jet with 64 people aboard collided with a Sikorsky H-60 Army helicopter ... Both the military helicopter and the passenger jet were in the river.

The twin-engine, four-blade helicopter is manufactured by Sikorsky, a subsidiary of defense ... over the years on training missions. The passenger jet was manufactured by Quebec, Canada-based ...

On Jan. 29, a collision between an American Airlines passenger jet and an Army helicopter ... “It is our understanding that the Sikorsky helicopter is equipped with some form of recording ...

the nine-12-passenger tiltwing Regional Air Mobility Concept and a helicopter called e-76 Concept. The strategy marks a shift from several years ago, when Sikorsky had focused on the electric air ...

a 9-12-passenger tiltrotor and a helicopter dubbed e-76. Meanwhile, Sikorsky has set up a customer advisory group, comprising leading commercial operators, to ”shape the ongoing development and ...