`The Mule` - Spring training in Pensacola, Florida - giving a better idea of the foiling physics of the AC75

© Amory Ross America's Cup: Barker gives AC75 the thumbs up despite capsize
American Magic have released a video from the winter sailing base at Pensacola of their development boat "the Mule". Included is some video of the AM38 capsizing. The reason for the capsize is not entirely clear and almost happens in slow-motion.