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EDUCATIONAL MARINE HYDRODYNAMICS

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Cussons Technology Ltd, founded in 1876, is acompany specialising in educational technology,manufacturing and supplying a comprehensive range ofmechanical engineering and research equipment foruniversities, technical institutes and trainingestablishments worldwide.

The company grew substantially with the expansion of Engineering teaching, particularly in the UK andEurope, and in 1964 Cussons Technology joined forceswith Ricardo Consulting Engineers to enhance theeducational range and introduce automotive researchequipment & facilities for Universities & Industry.Thus Cussons became a world leader in education,research, test and measurement with a philosophy ofproviding excellent design, reliability & support forclients worldwide.

Our founder George Cussons Snr was a pioneer,recognising that student involvement in an experimentrather than just telling or demonstrating was the bestway to allow full understanding..Cussons equipment for teaching & training continuesto embrace this principle, but now with moderncomputer technology. The equipment stays faithful ingiving students access to its operation, thus allowingcreativity to evolve.

There is no real substitute for hands-on experience of,for example engines & gas turbines and to see basic

principles in operation. Student engineers will graduate& eventually design their products with computers.Hence it is essential that there is early practicalunderstanding of all engineering areas which willconfront them throughout their career.

The subject areas we specialise in are – Thermodynamics– including Heat Transfer, Refrigeration and AirConditioning, Steam Engineering, AutomotiveTechnology, Fluid Mechanics, Process Control &Instrumentation, Theory of Machines & AppliedMechanics, plus a newly launched Renewable EnergyRange- covering Wind, Wave, Tidal and Solar Energy studies.

In addition we also specialise in educational andresearch equipment for Marine Hydrodynamics, NavalArchitecture and Maritime Studies.

In addition to supplying individual items of equipmentin these subject areas, Cussons also undertake completeturnkey projects for the design, supply, installation andcommissioning of entire laboratories, specialising inthose for steam and automotive engineering.We are fully ISO 9001 compliant.

Full details are available on our website atwww.cussons.co.uk.

Thermodynamics & Steam Engineering Automotive Engineering Mechanics of Fluids

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EDUCATIONAL RANGE

Cussons Technology Ltd founded in 1876 in Manchester, England is one of the world’s leading suppliers of Educational Engineering Equipment and Research instrumentation for the Automotive & Petroleum industries. Today, the company offers a wide range of products and services across several sectors to an international customer base.

The Cussons, K&R Marine Hydrodynamics Division was founded in 1997 following the acquisition of Kempf & Remmers GMBH who commanded universal recognition for excellence in the design and manufacture of a wide range of specialised force & moment measurement instrumentation together with testing facilities and systems for the marine hydrodynamic research sector. These facilities and equipment are still widely used today in the evaluation of hull design, propulsion systems and sea-keeping characteristics of a wide range of surface and sub-surface vessels, (both Naval & Commercial) plus other marine structures.

Cussons Technology is an organisation with a proven record of design and manufacture of equipment used in research, development and education. The instrumentation and experimental facilities produced by Cussons Technology since forming the Marine Hydrodynamics Division, meets and exceeds the quality and scope of the original Kempf & Remmers (K&R) designs. Indeed, today Cussons Technology offers complete turn–key facilities as well as a comprehensive range of products and services to an international customer base, offering

existing K&R designs but also modern facility and instrumentation systems to suit our customer’s needs.

Cussons Marine equipment and facilities are being used by our customers to test the designs and develop the new generations of “Green Shipping” vessels. With over 90% of the world’s trade transported by sea or waterway, ship design has a significant role to play in our lives. Ship Designers and Naval Architects are becoming increasingly aware of the need for “Green Shipping” with optimisation of design, improved efficiency, clean waste management, recycling and ship designs which are less damaging to the environment. In turn there is a proven importance for physical model testing of model hulls, propellers and propulsion systems as well as appendages. These not only look at efficiency and improved performance, but also at the impact on the environments they are used in. It is important that these ideas are passed on and developed by future generations through education and the advancement of Green Shipping designs. Cussons Technology Ltd are proud to be involved in supplying equipment that allows the physical testing of ship and propulsion designs at a model scale, in order to improve traditional designs or introduce new designs and systems before they a realised at full scale. It is in the use of these ship model testing facilities that so many of the advances in technology are developed, implemented first and tested. In order to do this, accurate, reliable, proven equipment & methods to measure and test the designs are required.

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EDUCATIONAL MARINE HYDRODYNAMICS

Cussons Technology has built on the success of its Kempf & Remmers Range of Research Hydrodynamics test equipment and its knowledge of tertiary educational engineering equipment to produce a new range of Educational hydrodynamic equipment to complement smaller facilities. The Equipment is designed to be robust for student use, and consistent in its results and accuracy as many of the components are inherited from the Kempf & Remmers Range. The Purpose is to allow the lecturer demonstrations to be carried out with ease, and for the students to undertake a range of experiments with repeatable results and reasonable accuracy.

The Products are designed to be cost effective and complementary to each other. Each product can be sold individually, however they can also be designed to be combined within a complete facility.

EDUCATIONAL CAVITATION TUNNELS 3K14 Educational/Research Cavitation Tunnel K23 Entry Level Research Cavitation Tunnel

EDUCATIONAL RANGE CAVITATION TUNNEL DYNAMOMETERS 4J19 Wake rake with integrated pressure transducers for use in Tunnels R25E/R33E/R73E External Mounted Dynamometer for use in Tunnels R30 Water tight window mounted 3 Component Balance for use in Tunnels R35 Water tight Single Component Balance for use in Tunnels R37 Water tight window mounted 6 Component Balance for use in Tunnels K23-06 Pitot Static Tube for use in measuring section of Tunnel V121E High Speed / Frame Rate Camera system for observing cavitation. V140 B&K Cavitation Tunnel Hydrophone system V123E Flat Plate and Cylinder Model Experiment for use in Tunnels

EDUCATIONAL TOWING CARRIAGES 5 / 6C20e Educational Towing Carriage designed to suit a towing tank 2m wide. C40e Educational Towing Carriage designed to suit a towing tank 4m wide.

SHIP MODEL RESISTANCE & STABILITY DYNAMOMETERS 7 / 8R35E Resistance Dynamometer and Towing post R200E Ship Model Balance V110E Ship stability dynamometer

PROPELLER DYNAMOMETERS 9 / 10H75E Open Water Propeller / Turbine Dynamometer R75E Educational K&R Self-propulsion DynamometerR31/ R42 / R43 Educational K&R Self-propulsion Dynamometer for small models

MODEL MANUFACTURE, ADDITIONAL EQUIPMENT & INSTRUMENTATION 11R28E Small Model Alignment / Guiding ArmsN10E Wake rake with integrated pressure transducers122E High Speed Camera system for the towing carriage M150E Educational 1.5m Offshore support vessel / trawler modelD25E Traditional K&R Propeller Measuring Machine

EDUCATIONAL SHIP MODELS 12B3000 Educational Ship Model Milling Machine

EDUCATIONAL WAVEMAKERS & WAVE ABSORBING BEACHES 13W20E / W40E Wet Back Hinge Flap Regular / Irregular Wave MakerE20EB / W40EB Tuneable Wave Absorbing BeachR23E Carriage Mounted Wave Probe

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EDUCATIONAL CAVITATION TUNNELS

We have a range of small Cavitation Tunnels developed from the Kempf and Remmers designs for use in the laboratories of Technical Universities. These tunnels can be used for cavitation tests with models of ship propellers and for tests with various profiles in cavitating and non-cavitating conditions

The Tunnels are manufactured from high grade materials to resist corrosion and fouling.

Each of our Educational Range of Tunnels is supplied with optional control and data-acquisition systems. The data acquisition system interface is based on National Instruments Front End for development with Labview.

Unlike the K14 type, the K23 has the additional feature of having interchangeable measuring sections allowing it to be altered to suit different test conditions and arrangements.

Although these are small cavitation tunnels, they still require a reasonably sized building. Depending on the customers’ requirements and space available they can be supplied with an additional vertical section to increase the height. Alternatively medium and large research grade tunnels are available.

There is a full range of equipment available to compliment these facilities including; Open-water propeller dynamometers, force and moment balances, wake rakes and pitot static Prandtl probes. Please see the list on the adjacent page.

Within the standard K14 and the K23 square sections we would recommend the use of the R33E or R73E Open water propeller dynamometer that can be mounted either down-stream of the flow in the traditional open water mode, or upstream of the flow where it can be installed with wake screens to simulate the wake of the hull.

We would also recommend the use of one of our various balances such as the R30 or R37 that can be used for testing hydrofoils and appendages. These can also be used in conjunction with the R33E or R73E mentioned previously, where it is possible to study propeller and rudders together.

We can provide specially designed propeller dynamometers for use in the K23 asymmetric section such as the H29-27 Open water dynamometer & R45B-04 Ship model propulsion dynamometer. Please contact us for further information.

EDUCATIONAL CAVITATION TUNNELS

K14 Educational/Research Cavitation Tunnel with 230mm x 230mm Measuring Section Max Speed 8m/s

K23

Small Research Cavitation Tunnel with 3 different measuring sections available:-300mm x 300mm Measuring Section Max Speed 9m/s-425mm x 425mm Measuring Section Max Speed 5m/s-Asymmetric 630mm x 350mm Measuring Section Max Speed 4m/s

All Cavitation Tunnels can be supplied with Optional NI control and Data acquisition system with NI interface.

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EDUCATIONAL CAVITATION TUNNEL INSTRUMENTS & DYNAMOMETERS

J19 (N11E) The J19 (N11E) Educational Wake Rake with integrated pressure transducers for measuring the wake profile with in the tunnel.

R25ER33ER73E

External Mounted Dynamometer for use in Educational Cavitation Tunnels for Open Water Propeller testing in the following ranges:

Rated Max Torque ±10Nm, Rated Max Thrust ±250N at 3500rpm.Rated Max Torque ±15Nm, Rated Max Thrust ±400N at 3500rpm.Rated Max Torque ±30Nm, Rated Max Thrust ±600N at 3500rpm.

H29Open Water Propeller Dynamometer - for use in the K23 630mm x 350mm Asymmetric Section only:Rated Max Torque ±15Nm, Rated Max Thrust ±400N at 3000rpm.

R45Watertight model propulsion dynamometer – for use in the K23 630mm x 350mm Asymmetric Section only: Rated Max Torque ±15Nm, Rated Max Thrust ±400N at 3000rpm.

R35 Water / Pressure tight Single Component Balance for use in Tunnels

R37 Water / Pressure tight window mounted 6 Component Balance for use in Tunnels

V121E High Speed / Frame Rate Camera system for observing cavitation

V140 Window mounting hydrophone system for use in the educational cavitation tunnels

K23-06 Pitot Static Tube for use in measuring section of Tunnel

V123E Flat Plate and Cylinder Model Experiment for use in Tunnels

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C20E EDUCATIONAL TOWING CARRIAGE

C20e (2m) Educational Towing Carriage designed to suit a towing tank 2m wide, with minimum length 40 up to a maximum of 70m (maximum rail length is 60m) - Max Speed 3m/s

EDUCATIONAL TOWING CARRIAGES

Cussons has a whole new range of towing carriages aimed at University and Educational Institutes that do not have the room for the larger scale research grade facilities. This range of unmanned carriages, are light weight, highly rigid & robust platforms that allow a wide variety of equipment to be attached from them. The carriages are designed for towing tanks from 2 or 4 meters wide with a minimum length of 40m up to a maximum of approximately 70m. (Maximum rail length is 60m.) The carriages are designed to run at a maximum speed of 3m/s but can run up to 4 m/s depending on length of tank available. Normal Rate of Acceleration is 1m/s2. Normal braking is provided at 1m/s2 whilst the emergency braking system operates at up to 3m/s2. The carriages are driven through 1 phase AC Servo Motors with pinions driving through a rack mounted to the Surface of the rail. Power is provided to the electrical system from a conductor rail system that runs down the drive rail side of the tank and is mounted to the drive rail. The unmanned carriages are controlled and operated by a shore based Wireless

supervisory control and data logging / acquisition system either designated the C20E-02 or C40E-02 depending on the carriage supplied. The C20E/C40E-02 is a PLC based control system which, in addition to the motor controllers, provides power to sensors, load cells and the electrical systems. The Shore based computer is used to record and manipulate the test data. The data is logged via the carriage based PLC, that in turn is downloaded to the shore based computer once the test run is completed and

computer once the test run is completed and the carriage returns to the dock “home” position at the end of the tank. This data is then loaded in Excel. The educational range of towing carriage tanks are not like traditional towing tanks with a dock, as they optimise the length of the tank for running the carriage. Hence to allow the trimming and setting up of tests or trimming of the models we can provide a floating dock that can be installed under the carriage but is removed when testing in waves.

All Carriages are supplied with a wireless control and Data acquisition system that is controlled remotely via a shore based control desk.

Carriage Access Platform

Instrument Support Frame

Guide Wheel Assembly

Pinion Drive motor

Drive Control Cabinet & Acquisition Panel

Pinion Lubricator

Axial Member with Unconstrained wheel

arrangement

EDUCATIONAL TOWING CARRIAGES

Cussons has a whole new range of towing carriages aimed at University and Educational Institutes that do not have the room for the larger scale research grade facilities.

This range of unmanned carriages, are light weight, highly rigid & robust platforms that allow a wide variety of equipment to be attached from them. The carriages are designed for towing tanks from 2 or 4 meters wide with a minimum length of 40m up to a maximum of approximately 70m. (Maximum rail length is 60m.)

The carriages are designed to run at a maximum speed of 3m/s but can run up to 4 m/s depending on length of tank available. Normal Rate of Acceleration is 1m/s2. Normal braking is provided at 1m/s2 whilst the emergency braking system operates at up to 3m/s2.

The carriages are driven through 1 phase AC Servo Motors with pinions driving through a rack mounted to the Surface of the rail. Power is provided to the electrical system from a conductor rail system that runs down the drive rail side of the tank and is mounted to the drive rail.

The unmanned carriages are controlled and operated by a shore based Wireless

supervisory control and data logging / acquisition system either designated the C20E-02 or C40E-02 depending on the carriage supplied.

The C20E/C40E-02 is a PLC based control system which, in addition to the motor controllers, provides power to sensors, load cells and the electrical systems.

The Shore based computer is used to record and manipulate the test data. The data is logged via the carriage based PLC, that in turn is downloaded to the shore based

computer once the test run is completed and the carriage returns to the dock “home” position at the end of the tank. This data is then loaded in Excel

The educational range of towing carriage tanks are not like traditional towing tanks with a dock, as they optimise the length of the tank for running the carriage. Hence to allow the trimming and setting up of tests or trimming of the models we can provide a fl oating dock that can be installed under the carriage but is removed when testing in waves.


C20e (2m)Educational Towing Carriage designed to suit a towing tank 2m wide, with minimum length 40 up to a maximum of 70m (maximum rail length is 60m) - Max Speed 3m/s


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C40e (4m) Educational Towing Carriage designed to suit a towing tank 4m wide, with minimum length 40 up to a maximum of 70m (maximum rail length is 60m) - Max Speed 3m/s (however 4m/s is possible)

Carriage Access Platform with step


Guide Wheel Assembly

Pinion Drive motors

Electric Collector

Drive Control Cabinet & Acquisition Panel

Pinion Lubricator

Axial Member with Unconstrained wheel

arrangement



C40e (4m)Educational Towing Carriage designed to suit a towing tank 4m wide, with minimum length 40 up to a maximum of 70m (maximum rail length is 60m) - Max Speed 3m/s (however 4m/s is possible)

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RESISTANCE &STABILITY

A variety of dynamometers can besupplied for use with the carriage andsupport frame, including the R35EResistance Dynamometer or the V110EShip Stability Dynamometers. These areintegral to the tow post that is normallysupplied with the carriage, however ifpurchased as separate product, it willhave to be quoted additionally.

The R35 is a traditional K&R SingleComponent balance that is both robustand very accurate as well as beingwatertight. The arrangement of theR35e in the towing post and the pitchingblock allow the measurement ofresistance of relatively small ship modelsin both smooth water and wave.

When using the ResistanceDynamometers it is recommended thatthe Carriage is fitted with the R28Eguiding arms that are designed tosupport the model and protect it fromyawing.

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R35E Educational Resistance Dynamometer and Towing post arrangement is based on traditional K&R method and is capable of measuring Resistance & Heave as well as being free to Pitch- Max Resistance is ±200N - Heave Measurement ±150mm (However depends on Towpost supplied)- Max Pitch Angle 30º (To Measure Pitch additional accessory required

RESISTANCE DYNAMOMETER

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RESISTANCE & STABILITYDYNAMOMETERS

A variety of dynamometers can be supplied for use with the carriage, with a support frame for connection to ship models. These include the R35E Resistance Dynamometer, R200E Ship / Yacht Model Balance or the V110E Ship Stability Dynamometers that are mounted from R35E-100/001 height adjustable support frame.

R35E Resistance Dynamometer

The R35 is a traditional K&R Single Component balance that is both robust and very accurate as you would expect, as well as being watertight. The arrangement of the R35e in the towing post and the pitching block allow the measurement of resistance of relatively small ship models in both smooth water and waves.

Since the R35E is a watertight balance it is also possible to use it with a profiled sword mounted in an underwater model to carry out resistance tests on underwater bodies. Please note additional equipment is required for this.

When using the R35E Resistance Dynamometer it is recommended that the Carriage is fitted with the R28E guiding arms that are designed to support the model and protect it from yawing.

R200E Ship / Yacht model balance

The R200E is a ship / Yacht model balance that can be used to measure the forces and moments of model hulls in a towing tank. It is designed for the more advanced user and with a carbon fibre towing post it is extremely light; making it ideal for users with smaller scale models associated with educational facilities with limited model displacement.

The R200E comes complete with static calibration equipment.

V110E Stability Dynamometer

The V110E is a ship stability dynamometer designed to carry out both static and dynamic stability tests with ship models in the educational towing tanks. These include:

- Static Righting Moment- Dynamic Model Tests in Fixed Heel- Dynamic Model Tests in Free Roll

For further details of the R35E, R200E & V110E please refer to the product descriptions.

R35E Educational Resistance Dynamometer and Towing post for use in smooth water & Waves.

Capable of measuring Resistance, Heave Displacement & Pitch Angle.

- Max Resistance is ±200N - Heave Measurement ±150mm- Max Pitch Angle 30º

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Height Adjustment

V110E Arrangement on Towing Post

Instrument Mounting

Plate

Height Clamps

Guide Wheel Blocks

Heave Potentiometer

Fixing Bolts

V110E Stability Dyno

Free Heave Towpost

Dyno Mounting Plate

Model Mounting Plate

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R200E Multi-component Ship Model Balance / Resistance Dynamometer is designed for carrying out various types of model testing and resistance test of ship models in University Teaching Laboratories with models up to approx. 2 to 3m.

- Max Torque 80Nm, - Maximum Permitted movement in Pitch ±20º (free or forced), - Max Permitted movement in Roll - ±30º (free or forced) - Maximum Permitted movement in Heave 150mm (dependant on tow post)

V110E Ship stability dynamometer for testing static righting moment and for dynamic roll angle and righting moment of ship / structure models:

- Fx (Resistance) - ±125N & Fy (Sway Force Fy1 + Fy2) - ±125N & - Mz (Yaw Moment) - ±30Nm - Mx (Roll/Heel Moment) - ±30Nm (fitted to model mounting bracket) - Heave Range - 500mm (+/- 250mm) Trim/Pitch & Heel/Roll Angle +/- 15°

R200E-02

Towing Post Guide rail Carbon Fibre

Towing Post

R200E-01 Balance &

Towing post

Fixed Balance Plate

R200E-02

Roll/Heel Measuring Pot

Pitch/Trim Measuring Pot

Heave/Trim Transducer

Mx Roll Load-cell

Fx Load-cell

Fx Load-cell

New V110E Ship Stability Dynamometer

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V110E Ship stability dynamometer for testing static righting moment dynamic roll angle & righting moment of ship / structure models: - Max Torque 80Nm, - Maximum Permitted movement in Pitch ±20º (free or forced), - Max Permitted movement in Roll - ±30º (free or forced)- Maximum Permitted movement in Heave ±250mm (dependant on tow post)Please note this equipment can also be supplied with optional equipment V111E Stand to allow it to be mounted from the wall of a tank or flume if carriage is not available

STABILITY DYNAMOMETER


R200E Multi-component Ship Model Balance / Resistance Dynamometer is designed for carrying out various types of model testing and resistance tests of ship models in University Teaching Laboratories with models up to approx. 2 to 3m.

- Fx (Resistance) - ±125N & Fy (Sway Force Fy1 + Fy2) - ±125N &- Mz (Yaw Moment) - ±30Nm - Mx (Roll/Heel Moment) - ±30Nm (fitted to model mounting bracket)- Heave Range - 500mm (+/- 250mm) Trim/Pitch & Heel/Roll Angle +/- 15°


- Max Torque 80Nm, - Maximum Permitted movement in Pitch ±20º (free or forced), - Max Permitted movement in Roll - ±30º (free or forced)- Maximum Permitted movement in Heave 150mm (dependant on tow post)

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Height Adjustment

V110E Arrangement on Towing Post

Instrument Mounting

Plate

Height Clamps

Guide Wheel Blocks

Heave Potentiometer

Fixing Bolts

V110E Stability Dyno

Free Heave Towpost

Dyno Mounting Plate

Model Mounting Plate

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R200E Multi-component Ship Model Balance / Resistance Dynamometer is designed for carrying out various types of model testing and resistance test of ship models in University Teaching Laboratories with models up to approx. 2 to 3m.

- Max Torque 80Nm, - Maximum Permitted movement in Pitch ±20º (free or forced), - Max Permitted movement in Roll - ±30º (free or forced) - Maximum Permitted movement in Heave 150mm (dependant on tow post)


- Fx (Resistance) - ±125N & Fy (Sway Force Fy1 + Fy2) - ±125N & - Mz (Yaw Moment) - ±30Nm - Mx (Roll/Heel Moment) - ±30Nm (fitted to model mounting bracket) - Heave Range - 500mm (+/- 250mm) Trim/Pitch & Heel/Roll Angle +/- 15°

R200E-02

Towing Post Guide rail Carbon Fibre

Towing Post

R200E-01 Balance &

Towing post

Fixed Balance Plate

R200E-02

Roll/Heel Measuring Pot

Pitch/Trim Measuring Pot

Heave/Trim Transducer

Mx Roll Load-cell

Fx Load-cell

Fx Load-cell

New V110E Ship Stability Dynamometer

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PROPELLER DYNAMOMETERS

As with the Kempf & Remmers range of equipment within the educational range, we can supply both open water propeller dynamometers and ship model self-propulsion dynamometers.

H75E Open-water Propeller Dynamometer

The Standard Educational Open Water Dynamometer is called the H75E. Although this is an educational product it is designed using traditional K&R load-cells and hence inherits the quality and accuracy within its design. The H75E can be supplied in 3 different ratings to reflect the customer’s needs. This versatile dynamometer can also be used as a water turbine absorption dyno at additional cost.

The H75E, like the Resistance Dynamometer is designed to be mounted to the educational carriages and instrument support frame. This allows it to be fixed securely to the carriage and at the same time enables it to lowered or raised to the appropriate water depth.

The H75E is supplied with its own calibration equipment the H75E-05

To accompany the H75E Open water propeller dynamometer we can supply a range of demonstration educational model propellers. Please note these are purely demonstration model propellers and not suitable for validation tests.

H75E-P Educational Propeller Series includes 1 Set of 5 Ø100mm (4”) diameter Educational Model Propellers suitable for use with H75E Open water dynamometers and 1 Set of 5 Ø75mm Educational Model Propellers, suitable for use with H75E

Open water dynamometers & the M150E-02 Educational Ship Model. The propellers will be of a similar scale diameter with in each set but with different blade numbers, different pitch and different surface ratio (AB/A0). Includes two propeller shafts to suit the different diameter propellers, for use with the H75E propeller dynamometer, all mounted in a purpose supplied case.

Please see the H75E product descriptions for further details.

H75E OPEN WATER PROPELLER / TURBINE DYNAMOMETERS

Educational Open Water Propeller / Turbine Dynamometer available in the following ranges:-Rated Max Torque ±10Nm, Rated Max Thrust ±250N at 2200rpm in either direction-Rated Max Torque ±4Nm, Rated Max Thrust ±100N at 2200rpm in either direction-Rated Max Torque ±2Nm, Rated Max Thrust ±75N at 2200rpm in either direction

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PROPELLERDYNAMOMETERS

As with the Kempf & Remmers range ofequipment within the EducationalMarine Range, we can supply both openwater propeller dynamometers and shipmodel self-propulsion dynamometer.

H75E Open Water Propeller/ Turbine Dynamometer.The Standard Educational Open WaterDynamometer is called the H75E. This isan educational product which is designedusing traditional K&R transducers andhence inherits the quality and accuracywithin its design. The H75E can besupplied in 3 different ratings to reflectthe customer’s needs. This versatiledynamometer can also be used as a waterturbine absorption dyno.

The H75e like the ResistanceDynamometer is designed to be mountedto the educational carriages andinstrument Support frame. This allows itto be fixed securely to the carriage and atthe same time enables it to be lowered orraised to the appropriate water depth

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H75E Educational Open Water Propeller / Turbine Dynamometer available in the following ranges:-Rated Max Torque ±10Nm, Rated Max Thrust ±250N at 2200rpmin either direction-Rated Max Torque ±4Nm, Rated Max Thrust ±100N at 2200rpm in either direction-Rated Max Torque ±2Nm, Rated Max Thrust ±75N at 2200rpm ineither direction

H75E OPEN WATER PROPELLER / TURBINE DYNAMOMETERS


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R75E Educational Ship Model Self-propulsion Dynamometer

The R75E Educational Self-Propulsion dynamometer is a self contained and compact unit designed to fit within small models, normally in the range of 1.5m to 2m long.

The R75E is designed to be suspended from a cross beam mounted across the gunwales of the model. (Please note that this cross beam is the responsibility of the user, as its dimensions will depend on the model.)

The R75E dynamometer is supplied with an integrated 12V DC electric motor with encoder for speed measurement. The Drive motor supplies power through the propeller shaft to the test propeller.

The R75E is really only educational use. For research or use with C40E we would recommend our K&R Range. Please note on page 12 the M150E-02 Educational Ship

Model can be supplied for installation with either the R31 or R75E, but we would recommend that if the end-user intends to carry out research, they would best selecting the R31.

R31 Ship Model Self-propulsion Dynamometer

The R31 is a traditional K&R Non-Water tight Self-propulsion dynamometer. Cussons can supply a wide range of these dynamometers to suit different ratings as listed below. These all have research grade accuracy.

Unlike the R75E the R31 can be driven from a separate motor. The use of our new flexible drives allows the R31 drive motor to be installed remotely and even removed from the model and fitted to the carriage.

Please see the R75E & R31 product descriptions for further details including optional accessories.

EDUCATIONAL SELF PROPULSION PROPELLER DYNAMOMETER

TYPE

R75E-1

TORQUE

3Nm

THRUST

200N

SPEED

1500RPM

ALTERNATIVE K&R SELF PROPULSION PROPELLER DYNAMOMETERS

TYPE

R25-1

R31-1

R42-1

R43-1

TORQUE

10Nm

4Nm

0.5Nm

1Nm

THRUST

250N

100N

30N

60N

SPEED

3500RPM

3500RPM

3500RPM

3500RPM

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EDUCATIONAL MODEL MANUFACTURING EQUIPMENT

B3000 Educational Ship Model Milling Machine

B2-01E Ship Model Stern-tube drilling equipment

D25 Propeller Drill Point Measuring Machine

R1-20E /30E Ship Model Moment of Inertia Apparatus

ADDITIONAL EQUIPMENT & INSTRUMENTATION

N10e Wake Rake with integrated pressure transducers

R28E Small Model Alignment/ Guiding Arms

V122E Stationary High Speed Camera System

M150E Educational 1.5m Offshore Support Vessel / Trawler Model

M250E Flat Plate and Cylinder Model Experiment for use in Tunnels

MODEL MANUFACTURE, ADDITIONAL EQUIPMENT &

INSTRUMENTATION

As well as the standard resistance, stability, self-propulsion and open water propeller dynamometers, we also supply wake rakes, guiding arms, video capture equipment and ship models. All of which can be used in conjunction with the towing carriage.As well as additional equipment we can also supply model manufacturing & measuring facilities.

N10E Ship Model Wake RakeThe N10E Self Propulsion is a self-contained and compact 4 pitot static probe rake mounted in an assembly to be mounted within the ship model to measure the wake field generated from the model hull entering the propeller.

The N10E wake rake comprises of five main elements: a Rake Arm with its 4 pitot static probes, connecting drive shaft running within a drive shaft housing, motor to rotate the drive shaft and arm around the propeller shaft axis, pressure transducer bank and priming valve block and tube priming tank and feed system.

R28E Model Guiding / Alignment ArmsThe R28E Model Guiding Arms are a pair of devices designed to be mounted for/aft of the model whilst using the R35E Resistance Dynamometer.

The guiding arms, whilst they are designed to keep the model parallel to the towing direction, are free to heave and pitch for use in waves.

V122E Video Camera EquipmentThe V122E camera system to detect model movement comprises of two cameras mounted on the towing carriage, one looking in the direction of the tank (for Y position), and one looking across the tank (X position). Facing each camera, behind the model is a board, etched with a grid.

The system is designed to be used with a Cussons Educational Carriage. The mounting brackets can be used directly with the slotted extrusions, used to form the main structural members of the carriage. When the V122E is to be used with other carriages, the user will need to find suitable locations for the mounting brackets and either manufacture mounting points ready to accept the V122E brackets, or adapt the V122E brackets to suit the carriage.

B3000 3 Axis Ship Model Milling MachineEducational 3 Axis CNC Ship Model

Milling Machine with Single High Speed & working envelope suitable for models upto 3m in bed and gantry configuration. Can be used to machine wooden & foam models

B2-01E Stern-tube drilling device This is an accessory for the B3000 Ship Model Milling Machine. It is a Drilling device for drilling holes for stern tubes in ship models, in order to install self-propulsion dynamometers and Wake Rakes.

R1-20E / 30E Ship Model Moment of Inertia Apparatus Ship Model Moment of Inertia Apparatus equipment uses pendulum theory to calculate the pitch and roll moment of inertia for either upto 2m or 3m models depending on model selected or use.

D25 Propeller Drill Point Measuring DeviceTraditional Drill Point Measuring used to manufacture and measure Model Propellers for use in Towing Tank and Cavitation Tunnel Testing - Upto 250mm Model.

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To complement the M150E-02 self-propulsion model we can supply a set of 5 additional propellers; Ø75mm (3”) diameter model propellers of various pitch and blade numbers for use with the H75E as well the M150E-02. M250E Standard Ship Models Alternatively Cussons can offer larger models for use with the C40E 4m tank carriage and equipment. These models are called the M250E and are approx. 2.5m in length. These include the following standard models: - 2.5m Wigley Resistance Model, 2.5m Single Screw Coastal Vessel, 2.5m Single Screw VLCC & 2.5m Twin Screw Ropax RoRo Vessel.

M150E Off-shore Support / Trawler Vessel Model Cussons have commissioned a standard 1.5m long educational model for use with our educational towing carriages and range of educational marine hydrodynamic Equipment. This is a 1:20 GRP model hull of an off-shore support / trawler vessel (full scale is 30m long approx.) The scale and size are suitable for use in smaller educational towing tanks recommended with the C20E & C40E type carriages. The M150E can also be supplied in a pure resistance version without the stern-tube. This is designated M150E-01 or alternatively a self-propulsion version M150E-02. To complement the M150E-02 self-propulsion model we can supply a set of 5 off additional propellers Ø75mm (3”) diameter model propellers of various pitch and blade numbers for use with the H75E as well the M150E-02.

M150E Off-shore Support / Trawler Vessel Model

Cussons have commissioned a standard 1.5m long educational model for use with our educational towing carriages and range of educational marine hydrodynamic Equipment. This is a 1:20 GRP model hull of an off-shore support / trawler vessel (full scale is 30m long approx.) The scale and size are suitable for use in smaller educational towing tanks recommended with the C20E & C40E type carriages.

The M150E can also be supplied in a pure resistance version without the stern-tube. This is designated M150E-01 or alternatively a self-propulsion version M150E-02.

To complement the M150E-02 self-propulsion model we can supply a set of 5 additional propellers; Ø75mm (3”) diameter model propellers of various pitch and blade numbers for use with the H75E as well the M150E-02.

M250E Standard Ship Models

Alternatively Cussons can offer larger models for use with the C40E 4m tank carriage and equipment. These models are called the M250E and are approx. 2.5m in length. These include the following standard models: - 2.5m Wigley Resistance Model, 2.5m Single Screw Coastal Vessel, 2.5m Single Screw VLCC & 2.5m Twin Screw Ropax RoRo Vessel.

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WAVE EQUIPMENTTraditionally first principles are resistance and self propulsion tests in calm water, however following these tests it is often essential to carry out sea-keeping testing in waves; observing the performance of a hull design in wave conditions. In order to carry out these tests, Cussons would recommend our wave generation equipment and accessories.

W20E or W40E Regular and Irregular Wave Maker

The W20E (2m) & W40E (4m) Wave Makers are designed to produce regular and irregular waves. They are single wet-back displacement flap Wave Makers, consisting of a paddle that is mounted at their base and moved backwards and forwards by means of a rack and pinion linear actuator. The number of actuators is determined by wave specification and width / depth of tank.

The AC Servo motors are controlled by an intelligent digital drive. The Drive provides all gain and damping necessary for the motor to ensure that the paddle accurately follows the position demand signal.

The Wave Makers are constructed of stainless steel and protected by anodised aluminium flaps. These flaps are wet backed, however they are fitted with covers as well as a wave absorbing material / foam beach fitted behind the Wave Maker to stop any splash back.

The Wave Makers are supplied with a PC and interface for control and generation of both regular and irregular waves. The supply will also include training and commissioning of the equipment.

W20EB & W40EB Tuneable Wave Absorbing Beach

In educational tanks of 2m or 4m width it is not necessary to have a traditional trimming dock and we advise that it is possible to supply a hybrid resonate beach with both vertical screens, as well as a further absorbing material at the end of the tank (on the wall.)

The Tuneable Resonant Wave Absorbing Beach is designed to suit the tank and typical wave specification for the facilities model scale. The screen beaches are constructed from corrosion protected material and designed to be fitted at the end of the tank. On the rear wall of the tank we can fit a further set of wave absorbing material / foam; the same material used behind the Wave Makers.

This versatile design allows the beach to be tuned to the specified wave length of the test without encroaching on the valuable tank length.

R23E Carriage Wave Probe

The R23E is based on the traditional K&R carriage mounted wave probes. Its unique foil profile allows it to be mounted to the carriage and either measure wave height when the carriage is static or the wave height as the carriage is moving, thus measuring the wave height at the model. This can then be connected to a data acquisition system on the carriage to log / record the data.

The Wave probe consists of a 250mm Wave Probe, a Carriage Mount Bracket and a Power supply / signal conditioning unit.

Please see the appropriate product descriptions for further details.

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EDUCATIONAL MARINE ENGINEERING

Cussons also have within the extensive range of Engineering Educational Equipment, a number of Products associated with Naval and Marine Engineering. These products offer practical experiments in all fields associated with Marine Engineering such as Thermodynamics and Steam Engineering, Marine Engines, Strength of Materials and Structures, Mechanics of Fluids and even Renewable Energy.

For a full list of Engineering Education Equipment and Products please refer to the Engineering Educational & Training Division Brochure, available as a download at: www.cussons.co.uk

THERMODYNAMICS & STEAM ENIGNINEERING

P7669 Miniature Steam Power Plant (Steam Engine / Steam Turbine)

P7690 1kW Steam Power Plant

P7670 - P7682 Steam Bench and Experiments

P3210 Heat Transfer Bench

P9005 Two Shaft Gas Turbine

P9050 Two Stage Air Compressor Set

P5750 Vapour Compression Refrigerator and Heat Pump

MARINE ENGINES

P8170M Low Power – Single Cylinder Engine test bed

P8750M Medium Power – Multi Cylinder Engine test bed

P8616M 4.4litre naturally aspirated Marine diesel engine (for use with P8750M)

High Power Range >150kw

Available to suit customer requirements. Please contact Cussons sales for more information.

FLUID MECHANICS

P6100 – P6248 Hydraulics Bench and Experiments

P6245/ P6255 Flow Channel – 2.5m or 5.0m

P6275 300 x 450 mm Cross Section Flow Channel

P3200 Air Flow Bench & Experiments

STRENGTH OF MATERIALS AND STRUCTURES

P4120 – P4141 Structures Range

P5000 Free & Forced Vibration Apparatus

P5030 Universal Material Testing Machine

RENEWABLE ENERGIES

P3130 Wind Generators Horizontal Axis Wells Turbine.

P7130 / P7135 Solar Distillation Apparatus (Thin Film / Basin)

P7140 Solar Energy Demonstration Unit

P9040 Fuel Cell Demonstration Unit

P9060 Photovoltaic Solar Power Unit

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This Brochure specifically features facilities and equipment offered through the Marine Hydrodynamics Division for Educational Institutes and Universities. This division also has a range of Industrial Research facilities and equipment, as illustrated in our Kempf & Remmers Marine Hydrodynamic Brochure. Other divisions of Cussons business deal with:

• Engineering Education

• Automotive Research and Development test beds, control,

data acquisition, exhaust emissions, cvs and other related

instrumentation.

• Integrated facilities for R&D projects in Aero, Oil, Military.

• Analysis and purification of gases for various industries.

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Head Office – Cussons Technology LimitedCussons Technology Ltd, Great Clowes Street, Manchester, M7 1RH

Tel: +44 (0)161 833 0036 Fax: : +44 (0)161 834 4688E-mail: [email protected]

Marine Hydrodynamics DivisionShaun Ross – Marine Division Business Manager

E-Mail: [email protected]

Internethttp://www.cussons.co.uk

Thanks to MMU in Myanmar, RNoNA in Norway, Galati University in Romania, VIMARU University in Haiphong (Vietnam), for allowing the use of photographs in this brochure.

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