Three Sigma Mfg.
22604 58th Place S.
Kent, WA 98032
(253) 395-1125


High Speed Marine:

Three Sigma Manufacturing, Inc. has been supplying precision machined components to the marine industry since 1989.

Our products include propellers, rudders and actuators for marine craft that travel in excess of 120 miles per hour. We proudly provided hardware for Marine Technology Inc. and Supercat Rigging for many years.

We've demonstrated our capability by engineering and manufacturing the reduction gear boxes in the Bud Select twin turbine boat that was powered by two 2,800 horse power Lycoming T55 gas turbines and routinely exceeded 200 miles per hour.

Our propellers were the driving force behind Circus Circus' 1990 Unlimited Hydroplane National Championship. We also propelled Cliff Bingham to a 1995 world record in his blown alcohol drag boat, as well as a season championship.