HT Series Brochure

Product catalog summary

Overview: The HamiltonJet HT Series waterjets, ranging from 1500kW to 5500kW, represent an advancement in waterjet propulsion technology. They feature a mixed flow pump design that offers high efficiency across various vessel speeds, improved cavitation performance, and enhanced propulsion system benefits.

Key Features:

Mixed Flow Pump: Provides high efficiency and outstanding cavitation performance.
Compact Astern Deflector: Retains performance with reduced weight and width, suitable for narrow hulls.
JT Nozzle Steering System: Offers responsive and efficient steering control at all speeds.
Installation: Simplified by a compression seal type transom plate arrangement, allowing for increased tolerance in transom axial alignment.
Transition Duct: Designed for optimum performance, adaptable to various hull shapes, and includes a removable intake protection screen.
Hydraulic System: Inboard hydraulic sub-assemblies with independent systems for redundancy, reducing maintenance needs.

Materials and Construction:

Transition Duct: Made from 5083 Marine Grade Aluminium or steel, depending on hull material.
Impeller and Wear Ring: Constructed from CF8M and 2205 Stainless Steel, respectively.
Stator and Nozzle: Made from EN AC 44100 Marine Grade Aluminium.
Thrust Bearing: Spherical roller type for handling thrust loads.

Maintenance and Reliability:

Low maintenance due to the absence of exposed propulsion gear and finely matched impeller to engine power.
Water lubricated rear shaft bearing for high reliability.
Hydraulic and thrust bearing oil cooling integrated into the waterjet.

Control Systems: Utilizes HamiltonJet’s MECS electronic control system, integrating electronic interface modules and wiring looms with the waterjet for simplified installation and maintenance.

Applications: Suitable for various vessel types, including those with warped hull shapes, and offers exceptional maneuverability and docking performance.

Contact Information: HamiltonJet has global headquarters in New Zealand with regional offices in the Americas, Europe, and Asia for customer support and distribution.

Catalog excerpts

HamiltonJet HT series waterjets represent the next evolution in waterjet propulsion technology. Developed from the highly successful HamiltonJet HM waterjet range, HT series waterjets incorporate improved efficiency and cavitation performance to enhance the existing benefits of HamiltonJet's superior propulsion systems. HT series waterjets feature a mixed flow pump with a greater nozzle to inlet ratio than comparible size axial flow waterjets. This provides high efficiency over the entire vessel speed range. A new optimised compact astern deflector retains the performance of HM series type ducts...

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HamiltonJet HT Series Features Controls • Utilises HamiltonJet’s proven MECS electronic control system • Electronic interface module and wiring loom integrated with the waterjet Thrust Bearing and Water Seal Assembly • Thrust loads from the waterjet impeller are taken by the inboard thrust bearing attached to the intake Inboard thrust bearing assembly • Radial loads from the driveline are also taken by this bearing – typically no additional internal support bearings are necessary • Bearing housing is separate from water seal cavity – eliminates water contamination in case of a faulty seal Driveshaft...

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Hydraulic System • Inboard hydraulic sub-assemblies • Independent hydraulic system on each waterjet for redundancy Inboard steering and ahead/astern hydraulics • No hydraulic system plumbing required by the shipyard Adhead/Astern deflector Complete Integrated Design • Each HamiltonJet waterjet is a complete packaged, factory tested, propulsion module • Ahead/Astern & Steering control systems are fully integrated with the jet to simplify installation and maintenance Ahead/Astern Deflector • Split-duct astern deflector provides powerful, high efficiency astern thrust under all conditions of boat...

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Note: all measurements shown are in mm Please consult your HamiltonJet Distributor for more information and Transition Duct options/specifications

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Above and Below: Crewboat "Aaron McCall" was the first vessel to be fitted with quadruple HamiltonJet HT900 waterjets Transition Duct 5083 Marine Grade Aluminium for Aluminium or GRP hulls Steel for Steel hulls Impeller CF8M Stainless Steel ASTM A743 Wear Ring 2205 Stainless Steel ASTM A240 Stator EN AC 44100 Marine Grade Aluminium BS EN 1706 Nozzle EN AC 44100 Marine Grade Aluminium BS EN 1706 Steering Deflector EN AC 44100 Marine Grade Aluminium BS EN 1706 Astern Deflector EN AC 44100 Marine Grade Aluminium BS EN...

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WORLD HEADQUARTERS HamiltonJet Global PO Box 709 Christchurch New Zealand Phone: +64 3 962 0530 Fax: +64 3 962 0534 Email: [email protected] www.hamiltonjet.co.nz REGIONAL OFFICES HamiltonJet Americas HamiltonJet Europe 14680 NE North Woodinville Way Unit 26, The Birches Industrial Estate Suite 100 East Grinstead Woodinville WA 98072 West Sussex RH19 1XZ United States of America United Kingdom Email: [email protected] www.hamiltonjet.com Cover: Korean Coast Guard patrol vessel, South Korea. Twin HT1000 waterjets and twin HM811 boost jets.

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