The fundamental design principles behind rotary-wing aircraft date back to the Renaissance, with some of the earliest-known designs belonging to Leonardo da Vinci. Naturally, technology has ...

Add Yahoo as a preferred source to see more of our stories on Google. As the investigation continues into Saturday’s helicopter crash that injured five people in Huntington Beach, a retired helicopter ...

Matt Biondich, 54, of Cook and his friend were in the helicopter that spun to the ground Saturday while giving rides during the Cook Timber Days festival. "It happened so quick," Biondich said. "We ...

Historical references to spinning flying machines go back hundreds of years, with evidence like the 12th-century Chinese twirling kite and Leonardo da Vinci's bizarre airscrew contraption of 1483.

ROWLETT, Texas (AP) — Investigators found main rotor impact marks next to a tail boom that separated from a helicopter just before a crash near Dallas, the National Transportation Safety Board ...