Marine scientists have long marveled at how animals like fish and seals swim so efficiently despite having different shapes.

The Boeing YF-118G was a top-secret, single-seat stealth technology demonstrator developed in the 1990s and nicknamed the ...

The X-plane demonstrator builds on Bell’s experience with tiltrotor aircraft, but with a new stop/fold rotor feature that ...

Bell will design and build a high-speed VTOL demonstrator for DARPA’s SPRINT program, as Aurora exits the competition.

If you've been hoping for a long-range, low-cost, heavy-lift seaplane using Wing-In-Ground effect (WIG), you'll have to be ...

Liberty Lifter was intended to design and build a seaplane with the cargo capacity of a C-17 Globemaster, that could take off ...

The US Defense Advanced Research Projects Agency (DARPA) has reportedly cancelled the “Liberty Lifter” heavy cargo seaplane ...

The Pentagon’s Defense Advanced Research Projects Agency (DARPA) has selected Bell Textron to build an X-plane demonstrator capable of flying at speeds of up to 450 knots, with the office […] ...

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

The secretive Pentagon research agency says the Liberty Lifter programme has proven the viability of building an amphibian ...

Bell's concept for an advanced tiltrotor-jet hybrid aircraft will move into the build stage of the US Defense Advanced Research Project Agency's Speed and Runway Independent Technologies X-plane ...