H2 Clipper’s ‘Warehouse in the Sky’ Offers Drone Delivery

Aerospace and alternative energy company H2 Clipper has received a patent for its “warehouse in the sky,” a dirigible that integrates cargo delivery and pickup via drone.  The hydrogen-powered dirigible would be 1,000 feet long — about four times the length of a Goodyear blimp — and could carry 400,000 pounds. The dirigible would feature […]