An inflight view from the left side of the Lunar Landing Research Vehicle, is shown in this 1964 NASA Flight…
Helios Prototype Flying Wing on lakebed at Edwards, Calif.
X-2 Number 1 (#674) landing with skids deployed.
AeroVironment technicians carefully line up attachments as a fuel cell electrical system is installed on the Helios Prototype solar powered…
The first flight of a large aircraft to be powered by electric fuel cells began with a takeoff at 8:43…
The Helios Prototype is an enlarged version of the Centurion flying wing, which flew a series of test flights at…
The long, slender wing of the Perseus B remotely piloted research aircraft can be clearly seen in this photo, taken…
A long, slender wing and a pusher propeller at the rear characterize the Perseus B remotely piloted research aircraft, seen…
A large, controllable-pitch pusher propeller at the rear is a distinctive feature of the Perseus B remotely piloted research aircraft,…
A long, slender wing and a pusher propeller at the rear characterize the Perseus B remotely piloted aircraft, seen here…
