The US Defense Advanced Research Projects Agency (DARPA) has selected Bell Helicopters to build the Speed and Runway Independent Technologies (SPRINT) unmanned ...

In recently published papers concerned with variable saturation in cylindrical rotor a. c. machines, a cross-saturation effect was described, caused by variable saturation. Using the same ...

A series of recent patent filings from Safran Aircraft Engines could hint at some of the innovations being contemplated for ...

The Soviet Mil Mi6 was a behemoth of an aircraft. Here's why the massive helicopter had wings, and what other capabilities ...