Persistent flight has always been an engineering constraint. What happens when the structure of the aircraft itself becomes the energy source? At stratospheric altitude, where drag disappears and ambient flux intensifies, Pi Fly's neutrinovoltaic skin continuously converts thermal gradients, electromagnetic fields, and cosmic particle flux into electrical output, enough to sustain cruise, navigation, and sensor arrays for weeks. No refueling. No runway. Disaster response, atmospheric research, connectivity over unserved regions.
PI FLY: What a Platform Looks Like When Energy Is Everywhere It Flies