The British challenger, INEOS Team UK, launched its test boat on the Solent in the summer of 2018, and we watched carefully to see what its proof of concept could add to the growing list of design questions surrounding the radical new AC75 concept. Our Mule was already in the works, but watching the British sailors spin out, plunge, crash and turtle their boat on a regular basis gave us pause as we contemplated how we would attack this problem the right way. Their flight controls looked outstanding, enabling them to tack and jibe right away, but other parts of their systems looked rudimentary. It was impressive nonetheless to see the two sailors on board T5 romp around Portsmouth, boldly showing the design concept was going to work. That sight lit a new fire under our team. We knew the Mule was a more ambitious stab into the unknown, but the value was clear as the recon from Britain came forth.