Technician Marshall MacCready carefully lays a panel of solar cells into place on a wing section of the Helios Prototype flying wing at AeroVironment's Design Development Center in Simi Valley, Calif.
EC00-0283-4
Technician Marshall MacCready carefully lays a panel of solar cells into place on a wing section of the Helios Prototype flying wing at AeroVironment’s Design Development Center in Simi Valley, Calif. The bi-facial cells, manufactured by SunPower, Inc., of Sunnyvale, Calif., are among 64,000 solar cells which have been installed on the solar-powered aircraft to provide electricity to its 14 motors and operating systems.September 18, 2000NASA Photo / Tom Tschida› Helios Project Description