Certain designs are ageless or rather their basic design was perfected long ago. The airship — a powered hot-air balloon — was frozen in design between the World Wars. These vehicles could now be on the verge of making a commercial comeback, with the same basic designs modernised by the use of new technologies, and materials.
Consider this. A large vehicle that airlift lots of people and tonnes of cargo, almost silently and efficiently. It needs little power to move loads since it’s buoyant and moves through the low-friction medium of air. It can dock anywhere. It’s very eco-friendly. In