Aviation, as humanity has been experiencing for the past 120 years or so, means an aircraft needs engines to take off and fly, wings to keep it in the air, and physical control surfaces (stabilizers, ...
The purpose of the new X-plane project is to mature the GHO technology as fast as possible and to get it operational within 20 months. "The idea behind a DARPA X-prime program is to take emerging ...
DARPA and Northrop Grumman have made a new drone with X-plane designation XRQ-73. The Series Hybrid Electric Propulsion AiRcraft Demonstration program is known as SHEPARD. SHEPARD is an X-prime ...