In the context of that sentence, the Hindenburg is mentioned as is/was the largest aircraft ever built at 245 m (804 ft) length. Pathfinder 1 is about half tha

In the context of that sentence, the Hindenburg is mentioned as is/was the largest aircraft ever built at 245 m (804 ft) length. Pathfinder 1 is about half that at about 123 m. It is surprising how 90 some years later we aren't even close to matching the size, though clearly the technology has advanced greatly. Even with the new tech and power efficiency, the speed is still slower (60 knots vs 67 for the Hindenburg).