Emergency responders at the Mercy Flight crash that killed two pilots on April 26 in Elba have known that the Bell 429 helicopter landed in two pieces: the main body and the tail. Now a preliminary ...

Ordinarily on a helicopter, the main (top) rotor is mechanically linked to the tail rotor, so the spinning of the former causes the latter to do likewise. An experimental new system replaces the tail ...

A main rotor shaft supplier has sued Bell Helicopter for over a million dollars, alleging that the Fort Worth helicopter manufacturer has failed to pay invoices for parts and services. Textool, a ...

Historical references to spinning flying machines go back hundreds of years, with evidence like the 12th-century Chinese twirling kite and Leonardo da Vinci's bizarre airscrew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

You can think of a helicopter's top rotor blades as wings – wings capable of varying their pitch to generate more or less lift as they rotate around the main rotor shaft – a concept demonstrated ...

Divers have salvaged key new evidence following the horrific helicopter crash in the Hudson River last week, which claimed the lives of six people, transportation officials have said. On Thursday ...

Although helicopter aerodynamics involves the same forces that arise in airplane aerodynamics, these forces occur differently due to fluid flow dynamics across the aircraft. Helicopters take advantage ...

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

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 ...