Michael Quiel enjoys recreational activities like golf, skiing, and water sports, especially hydrofoiling. A hydrofoil is a wing-like structure attached to a boat's hull that lifts the hull out of the water as speed increases, reducing drag and boosting speed. The first hydrofoil boat was built in 1906 and achieved speeds over 42 mph, with a 1919 adaptation setting a record of 69 mph that stood for over 40 years. Many navies have developed hydrofoils for military use, and research led to jetfoils used on patrol boats and predecessors to jetskis, though human-powered models have been impractical except as novelties.