Add Yahoo as a preferred source to see more of our stories on Google. BROOKSVILLE, Fla. (AP) — Authorities say a man was hit in the head by the main rotor blades and killed while working on a ...

A mechanical failure, specifically a problem with the main rotor, caused the fatal DPS helicopter crash in Flagstaff, according to a preliminary NTSB report.

October 28, 2008 Helicopters featuring coaxial rotor designs are not exactly new. The co-axial design of a pair of rotors mounted on the same mast and with the same axis of rotation, but turning in ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Watch a helicopter fly, and the big spinning top rotor hogs the ...

BROOKSVILLE, Fla. (AP/WFLA) – Authorities say a man was hit in the head by the main rotor blades and killed while working on a helicopter at a Florida airport. A Hernando County Sheriff’s Office news ...