Following the loss of 7 lives when Bayesian sank, Sir Robin explains why yachts don't normally sink. Also Shelley looks back at last weekend's Cowes Powerboat Festival, ahead to the rescheduled Brambles Cricket match.There's also the start of the 37th America's Cup and the Paralympic Games, Sir Robin remembers his encounter with killer whales off Spain and how at the age of 14, the Grand Union Canal shaped his future life.Sir Robin Knox-Johnston CBE RD was the first person to sail non-st...