Tech billionaire and Google co-founder Sergey Brin’s massive experimental airship, the Pathfinder 1, drew attention over San Francisco this week after residents spotted the giant craft cruising above the city, SFGate reported.
The gleaming, helium-filled aircraft has been jokingly likened by aviation watchers to “a Goodyear blimp on steroids,” but it isn’t actually a blimp at all.
Unlike traditional blimps, which have no internal framework, Pathfinder 1 is a fully rigid airship — stretching roughly 400 feet and constructed from advanced materials including titanium, aluminum, and carbon fiber.
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