Stanley Sayres

Stanley St. Claire Sayres (1896 - 17 September 1956) was a hydroplane racer who broke the world water speed record with his "Slo-mo-shun IV" boat.

[3] Together with Harry Jensen he founded the successful company Jen-Cel-Lite, which made sleeping bags using cellulose for insulation.

[1] From 1937 onward, he owned a series of successful hydroplane racing boats called Slo-mo-shun I to V. The first ones were bought in 1937 and 1942 from Jack Cooper; the Slo-mo-shun II had with its previous owner and under its previous name Topps III set a world record for its class (225-class boats) at 87.48 mph.

It marked the start of the collaboration between Sayres, designer Ted Jones, and builder Anchor Jensen (son of Tony).

[2] The IV also won the Harmsworth Cup in 1950, making it the only boat to win the two most important trophies and set the world speed record in one year.