LEISU SUPERYACHT The Largest Manufacturer of Quality Propellers and Stern Gear in Europe

TEIGNBRIDGE PROPELLERS WORLD LEADERS Teignbridge Propellers Int Ltd is a world leading designer and manufacturer of high performance and high quality propellers and sterngear. Founded in 1974 Teignbridge has innovation in it’s DNA and has brought a number of new products into the marine market place, many of which are now considered as industry standards. Teignbridge continues to innovate through research and development, enabling the Company to remain at the cutting edge of marine engineering innovation. This means employing highly qualified, experienced and talented engineers and investing...

Production Accuracy Industry Developments Teignbridge has an on-going program of continual investment in all our Group facilities that ensures our products are machined to the highest degree of accuracy. Our CNC Mazak mill can fully CNC propeller blades to within the thickness of a hair and deliver better than S Class propellers up to 2.2m in diameter. We have a number of modern CNC lathes to turn shafts, rudders and brackets. In addition we have a Hurco CNC mill for accurately machining CPP blades. This ensures that our world leading designs are matched by production accuracy to deliver world...

TECHNICAL CAPABILITIES STATE OF THE ART TECHNOLOGY Teignbridge stays at the forefront of propeller design and manufacturing, through continued investment in state of the art technologies and processes. This approach along with the experience gained from 50 years in the industry, allows us to constantly develop, improve and perfect our products and the services we offer. Numerical Ship Simulation Developed in house, our MATLAB + Simulink ship simulator predicts fuel consumption and evaluates fuel efficiency of energy saving technologies based on hull resistance, engine simulation, propeller simulation...

150 140 New Design Monitor: Sound Pressure Level Sound Pressure Level (dB) Original Monitor: Sound Pressure Level Note: reference pressure in water 1 μPa Note: reference pressure in water 1 µPa All new propeller designs are modelled in our 3D CAD package. These models can then be used in our CFD and FEA programs and geometry alterations can be made quickly during the design process. Once compete, a design can be sent to our 3D printer, CNC pattern mills or robotic sand mill. Finite Element Analysis (FEA) Working hand in hand with our CFD software, FEA allows us to optimise the geometry of our...

IMPROVING PROPULSION PERFORMANCE AN INTEGRATED DESIGN APPROACH Propeller geometry is necessarily complex with inter-related parametric definitions of pitch, skew, rake, blade section and more. Navigating the available design space to drive performance in a particular direction whilst operating in the complex wake of a boat is not a simple or a quick task, but getting it right pays dividends in fuel reduction, noise and vibration, as well as cavitation reduction and overall performance of the system. An integrated design approach, based on Teignbridge years of proven experience and utilising the...

Continuity X - momentum Y - momentum Z - momentum Residual The areas where we can offer our help: Hull and appendages performance evaluation and optimisation Propulsion unit design with an integrated approach Advanced Visualisation and Evaluation The flow around a vessel, its propulsion unit and appendages is quite complex and CFD technology allows for advanced visualisation and evaluation of the flow around the most complex parts of the geometry. In a CFD simulation the designed parts can be simply modified and evaluated without the need for building a new model which helps reducing the time...

PROPELLER RANGE 50 YEARS EXPERIENCE With 50 years of experience, Teignbridge have designed and manufactured propellers for almost every craft imaginable, from leisure, superyachts, lifeboats, crew boats, pilot boats, WFSV’s, OPV’s OSV’s, tankers, bulk carriers, solar powered, autonomous, foiling, fishing boats and survey vessels to warships. We design the bespoke propellers using CFD and propeller design optimisation software to suit any of these applications and new designs of vessels as they emerge. Whether it’s a high bollard pull for a nozzle propeller or a high speed patrol boat or a smooth...

Unique design software The ‘Clamp on Blade’ propeller (CoB) The ‘Clamp on Blade’ propeller (CoB) has been designed by Teignbridge for use on merchant, commercial, military and leisure applications. It is a completely new modular replaceable blade propeller system that allows propeller blades to be changed underwater on small boats or alongside or at anchor on larger vessels. The ‘Clamp on Blade’ propeller significantly reduces downtime on charter, as many vessels are able to carry spare blades and replace damaged blades without having to use a slip or dry dock. The CoB propeller also provides...

Straight Rudder Velocity Aligned Rudder (VAR) No Pressure concentration near the leading edge Pressure Teignbridge produce a wide range of rudders for all types of boats for concentration near leisure, commercial and military vessels. Working in close partnership with the leading edge naval architects, boat designers and builders we produce the best solution for the individual application. Using advanced CADCAM solid 3d modelling design system, computational fluid dynamics (CFD) our rudders will provide the optimum performance according to the design criteria provided. Manufacturing via a modern...

Rudders behind a propeller experience an incoming flow that not only varies in angle of incidence, but also varies in the magnitude from top to bottom, due to the hull boundary layer presence. Hence, we prefer to use the term ‘Velocity Aligned Rudder’ (VAR) to describe the concept of a “twisted rudder”, since velocity is a vector quantity. A ‘velocity aligned rudder’ takes advantage of cross-flow velocity components in the propeller wake by careful design of blade sections to distribute the pressure more evenly on the surface of the rudder and reduce the impact of the negative pressure concentration...