1 This 1953 Hydrojet from the Kermath Manufacturing Co. inhaled water from behind the nozzle. Kermath claimed a discharge rate of 1,100 gallons per minute. As is common today, the helm steered the nozzle through 360 degrees.
4 Gas turbine engines similar to this General Electric T58 made their marine debut with Donald Campbell’s record-setting Bluebird. Nowadays, gas turbines power the Unlimited Hydroplanes and a variety of high-speed superyachts.
5 The most significant advances in the propulsion of sailboats have come from the sailcloth, and the 3DL from North Sails. Introduced in 1992, this technology thermo-molds sails as a unitary membrane on a full-size 3-dimensional mold. A 3DL sail stretches less for its weight, holds its shape over a wider range of wind speeds and retains its designed shape longer.
Sign up for Yachting emails to receive the latest news on new boats and technology, advice on seamanship skills and great nautical destinations, as well as special offers on behalf of Yachting’s partners.