Billing Boats 520 1/12 scale Slo-Mo-Shun IV. In the years before the Mariners and other local big league sports teams, Seattle had the Slo-mo-shun IV hydroplane - “Slo-mo” for short. This speedy vessel’s designers, builders and racers, Anchor Jensen, Ted Jones, Stan Sayers and Lou Fageol became household names when they set the world water speed record on Lake Washington and won the covetede Gold Cup in Detroit in 1950.
