In 1933, the Royal Yacht Squadron offered a challenge for the next America's Cup. T.O.M. Sopwith, the renowned aircraft designer, wasted no time in using his best people to develop Endeavour. The result of their efforts was a J-Boat that was technologically advanced for her time and faster than the defender Rainbow. Unfortunately, that was not enough to win the America's Cup, and in one of the closest America's Cup challenges in history, Rainbow defeated Endeavour by smart sailing and taking advantage of her amateur crew.