Helicopters stand among the many reasons why aviation is as important as it is today. These aircraft occupy various niches worldwide, ranging from extensive military applications, such as helicopters ...

Mast bumping is something that can occur with some types of helicopters. Here's exactly what it is, what causes it, and how dangerous it actually is.

Add Yahoo as a preferred source to see more of our stories on Google. A tourist helicopter crashed into the Hudson River in New York City on Thursday, killing six people. A former military helicopter ...