An engineer at AeroVironment's Design Development Center in Simi Valley, Calif., closely inspects a set of silicon solar cells for…
Technician Marshall MacCready carefully lays a panel of solar cells into place on a wing section of the Helios Prototype…
Technician Marshall MacCready carefully lays a panel of solar cells into place on a wing section of the Helios Prototype…
A technician at AeroVironment's Design Development Center in Simi Valley, Calif., checks a panel of silicon solar cells for conductivity…
Helios Prototype Flying Wing
The first flight of a large aircraft to be powered by electric fuel cells began with a takeoff at 8:43…
The first flight of a large aircraft to be powered by electric fuel cells began with a takeoff at 8:43…
The first flight of a large aircraft to be powered by electric fuel cells began with a takeoff at 8:43…
This photo of two swept-wing airplanes was taken on the ramp of the NACA High-Speed Flight Station.
Helios Prototype Flying Wing flying above Rogers Dry Lake at Edwards, CA.
