In September, 1933, the Royal Yacht Squadron offered a challenge for the next America's Cup. T.O.M. Sopwith, renowned aircraft designer, wasted no time in using some of 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 for the British, that was not enough to win the America's Cup, and in one of the closest America's Cup races in history, Rainbow defeated Endeavour by smart sailing and taking advantage of Endeavour's amateur crew.