Ultradynamics | UltraJet Drives - Jet Boat Design Considerations & Successful Applications

Jet Boat Design and Operation Considerations

Information and concepts to aid the successful application and operation of UltraJet propulsion systems.

Jet Boat Design Considerations
This PDF document reviews design considerations related to the engine(s), transmission(s), drivelines and shafting, hull types, hull preparation, and trim and balance of the hull.
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Waterjet Impeller Nomenclature (Impellers Demystified)
A discussion of impeller nomenclature including type numbers, calculating impeller power absorption, blade trimming, and blade pitch angles.
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Matching Impeller And Engine RPM
Waterjet impellers have much different engine-loading characteristics compared to propellers. This document discusses the differences and especially how waterjet impellers cannot overload the diesel engine.
Useful information for diesel engine sales people
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UltraJet Installation In Fiberglass Hull
Pictorial essays on the preparation and installation of UltraJet in composite hulls.
Download PDF document for single jet installation.
Download PDF document for twin jet installation.

Nacelles For Optimizing UltraJet Propulsion
Nacelles have been applied by a number of boat builders to optimize their hulls for waterjet propulsion. This concept is especially suitable to adapt hulls not normally considered suitable for waterjet propulsion.
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Waterjet System Commissioning Guide
The definitive guide to diagnosing engine and boat performance issues during initial sea trials. Also covers possible situations occurring in service following successful sea trials. This guide may be used to troubleshoot most waterjet propulsion systems, regardless of waterjet supplier.
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