Isambard Kingdom Brunel a white elephant, but it has been argued by David P. Billington that in this case Brunel's failure was principally one of economics—his ships were simply years ahead of their time. His vision and engineering innovations made the building of large-scale, propeller-driven, all-metal steamships a practical reality, but the prevailing economic and industrial conditions meant that it would be several decades before transoceanic steamship travel emerged as a viable industry. "Great Eastern" was built at John Scott Russell's Napier Yard in London, and after two trial trips in 1859, set forth on her maiden voyage from Southampton to New York
Isambard Kingdom Brunel as the cube of its dimensions, whereas the amount of resistance a ship experienced from the water as it travelled only increased by a square of its dimensions. This would mean that moving a larger ship would take proportionately less fuel than a smaller ship. To test this theory, Brunel offered his services for free to the Great Western Steamship Company, which appointed him to its building committee and entrusted him with designing its first ship, the . When it was built, the "Great Western" was the longest ship in the world at with a keel. The ship was constructed