HUMPHREE BROCHURE 2009
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Innovative Technology

Humphree, based in Gothenburg on the west coast of Sweden, is a company dedicated to providing "speed at sea" through innovative technology solutions for high performance vessels. Founded by a team of hydrodynamicists and marine engi- neers, active in the field of marine high-speed propulsion and ship hydrodynamics since the early I 990's, the company was formed in 2001 to provide cutting-edge products and services tailored to unlock the true potential of all types of fast vessels While the company's name may appear strange, it is on the contrary related to one speciality of the company -...

Notable "milestones" roriia imiti 992 Systematic experiments in free-surface cavitation tunnel, followed by over a decade of theoretical and practical experience in understanding and utilising the flow past interceptors. 994 Full-scale demonstration of the "hump-free" ability of interceptors. A full beam interceptor was devised for a 30 m monohull ferry (Chuan Chan) built by Austal Ships.The event that sparked this yard's development of interceptors. 995 A 7 mm full beam interceptor released the speed potential ofVisotta, a 24 m motor yacht built 997 Between 1994 and 1997 various...

Hump-Free | Interceptor Systems Humphree's Interceptor Systems provide effective solutions to enhance your vessels' performance in both calm and rough water Depending on configuration, Humphree's Interceptor Systems can provide • Reduced resistance at hump speed • Reduced wavemaking and wash • Increased speed and vessel range • Operator control of running trim and list • Automatic optimisation of trim and speed • Active damping of pitch and roll motions All Humphree Interceptor Systems are based on the innovative Humphree Intercep- torand our specially designed control panel, offering...

The basic Humphree Interceptor System offers the high-speed craft operator an effective tool to optimise the ship speed and the ride comfort by manual control of running trim and list The basic Humphree Interceptor System comprises one Humphree Control Panel for wheelhouse installation and a set of Humph- ree Interceptors with inboard electric servo actuators.The number of interceptors per side may vary between one, two and three, depending on the vessel's beam, transom space and lift force requirements. Optional components are waterproof fly- bridge panel, trim angle sensor; cable harness...

Loss-Free | Steering Systems Modern high speed craft, propelled by waterjets with flush inlets, often show unsatis- factory directional stability due to insufficient aft underwater lateral area, when com- pared with propeller driven hulls having appendages such as rudders, shaft brackets and skegs. In beam and quartering winds, it is the rule rather than the exception that waterjet-propelled vessels, despite frequent corrective steering by means of large jet deflections, have difficulty in keeping straight course while maintaining high speed. Humphree's steering systems offer the perfect...

Steering Control Control of Humphree s loss-free steering systems comprises four main elements: • Interceptor control unit • Position indication instrument • Selector switch panel • Helm command The interceptor control unit is connected to the waterjet control system and executes the helm command by controlling the servo The interceptor blade position is monitored with a high-quality, illuminated, analogue The selector switch panel provides the ope- rator with a choice of using the interceptor system or the normal waterjet steering normal modes of operation of the waterjet control system....

Due to the nature of water; which vaporises at low pressure or equivalently, at high velocity, relatively little attention needs to be paid to cavitation when designing ship appendages for speeds up to about 30 knots, while at higher speed it becomes in- creasingly important. Above 50 knots it is imperative to fully address cavitation, unless most unpleasant problems are to appear in the form of erosion, lift force breakdown, excessive drag, and noise and vibration. Through its unique cavitation and ventilated flow know-how, and proprietary design and simulation software, Humphree is able...

At Humphree we live by the belief that speed on shore is as important as it is at sea. It is equally important to us to provide you with quick and easy assistance on shore, as it is to develop and deliver products and solutions perfectly tailored to achieve Based on our team's cumulated theoretical and practical experience of mastering flow and motion of high-speed craft, we offer our customers the following range of special services: • Advice and assistance in the design of appendages and propulsors • Assistance during tank or tunnel testing • Computation of flow around ship hulls, with or...

HUMPH REE® Innovative Technology for Speed at Sea

Innovative Technology for Speed at Sea Hump-Free | Interceptor Systems Loss-Free | Steering Systems HUMPHREE® is a registered trademark. Copyright © Humphree 2008. All rights reserved. Sjöporten 4 SE-417 64 Goteborg Sweden