The new Kamewa S3 series of stainless steel waterjets builds on experience gained from the successful SII series and offers a significant increase in efficiency and a reduction in size, weight and life-cycle costs.
It also incorporates a host of improvements in a lighter, more compact, yet heavy-duty waterjet design that minimises noise and vibration.
For most applications a unit one size smaller than previously specified will give the same performance, giving a 25 per cent reduction in the total unit weight plus entrained water and a transom flange diameter 12 per cent smaller.
Within a given frame size, each waterjet can be optimised for the installation.
Different nozzle diameters provide the right balance between vessel speed and jet velocity, various impeller blade angles can be chosen to match shaft speed, and many shapes of inlet duct are used to avoid flow separation and cavitation.
A revised bucket system cast in stainless steel optimises the distribution of material, providing a strong but light manoeuvring system.