Pathfinder-Plus on a flight with the Hawaiian island of N'ihau in the background.
EC98-44621-36
Pathfinder-Plus on a flight with the Hawaiian island of N’ihau in the background. The goal of the flights was to validate new solar, aerodynamic, propulsion, and systems technology developed for the Pathfinder’s successor, the Centurion/Helios Prototype, which was designed to reach and sustain altitudes in the 100,000-foot range.17 Jun 1998NASA Photo / Nick Galante› Pathfinder-Plus Project Description