1950 U-27 Slo-mo-Shun IV

1950 U-27 Slo mo shun IV

About the 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 coveteded Gold Cup in Detroit in 1950.

As the centerpiece of Seafair – Seattle’s annual civic celebration begun in 1950 – the “hydro” races on Lake Washington were the high point of every summer for more than 30 years. The races continue to draw huge crowds every August.

Slo-mo’s radical “flying” three-point hull design and unmatched speed refined boat racing, and inspired the design of every hydro that followed. After a devastating wreck in Detroit in 1956, Slo-mo was cosmetically restored for display at Seattle’s Museum of History and Industry (MOHAI) beginning in 1959.

Slo mo shun IV Restoration

In 1990, she left MOHAI for a complete structural and mechanical restoration, by the Hydroplane & Raceboat Museum, and was ultimately put through her paces on Lake Washington one last time. Slo-mo returned to MOHAI in 2001

HULL SPECS
Driver Stan Sayers, Ted Jones, Lou Fageol
Owner Stan Sayers
Designer Anchor Jenson, Ted Jones
Builder Jenson Motor Boat Company
Year Built 1950
Length 28 Feet
Width 11 Feet 6 Inches
Weight 4,750 lbs.
Powerplant V-12 Allison