Dag Pike began his career as a merchant captain, went on to test RNLI lifeboats, and took up fast boat navigation, winning a string of trophies for powerboat races around the world, including navigating Richard Branson's Virgin Atlantic Challenger on the record-breaking fastest Atlantic crossing by powerboat. He later became a navigation and powerboat journalist in demand all over the world, regularly invited to speak at conventions, and act as an expert witness at hearings. HIs expertise on cruising performance and racing strategy were much sought after. He is the author of numerous books for Adlard Coles, including Powerboat Design and Performance, The Complete RIB Manual and Be Your Own Boat Surveyor.