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Revolutionary new propeller design…

The new  SHARROW PROPELLER™ is perhaps the biggest prop design advance since the 1930’s.

Its design, enabled by modern computer modelling has made a significant impact on performance and fuel efficiency.

imageOver the past 6+ years, extensive testing data collected at the University of Michigan’s Marine Hydrodynamics Laboratory, along with results from internal CFD and FEA analysis have been collected and analysed by Sharrow Engineering.

Additionally, Sharrow Engineering implemented a rigorous in-water test program using manned vessels in lakes, rivers, and bays. Results from this extensive research program demonstrate that the Sharrow Propeller is 9%-15% more efficient than the industry standard Wageningen B-series design.

The SHARROW PROPELLER™ also exhibits a wider peak efficiency curve for greater utility over a wide scope of operational ranges.

Additionally, The SHARROW PROPELLER™ generates more thrust and uses less energy for a given RPM than a standard propeller design, which increases acceleration dramatically.

See the Boatest.com trial here…



Well done Coppercoat !

I had Coppercoat on my Moody 44 “Enterprise” and I can vouch for its effectiveness. After over 5000nm including 3 Biscay crossings and the Atlantic, when I lfinally lifted the boat in Trinidad I had to ask the boat yard to use a normal hose instead of a jet wash … there was just the faintest slim …absolutely amazing.

The announcement today is that when the 2017-2018 Clipper boats were finally lifted out after 40,000nm of racing and 16 months of continual immersion, the Coppercoat on their hulls revealed almost no loss of coating thickness. Barring the faintest trace of

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New Type of Class B+ AIS Transponders at METS 2018

The UK based company Digital Yacht will introduce a new range of Class B+ AIS transponders at METS 2018.

Class B+ is a new AIS standard. This is performance similar to Class A transponder but for non mandated users. This new standard is ideal for ocean sailors requiring the best possible performance and future proof satellite tracking applications, fast power boats and smaller non-mandated commercial vessels. It still inter-operates with existing Class A and Class B systems.

It utilises SOTDMA format transmissions which offer a 5W power output (2.5x more powerful than a regular Class B) A guaranteed

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Panoptix LiveScope …Down and Forward Sonar

Garmin have released their new Panoptix LiveScope. This is the most amazing sonar technology ever. This is a downward and forward scanning sonar. You can actually see easy-to-interpret live scanning sonar images of fish swimming under the boat.

The Panoptix LiveScope scanning sonar system includes a compact GLS 10 sonar black box with LVS32 transducer and retails for around £1,800


Preventing electrical failures…

How many of you have these terminal block connectors on board ?..

How many times have I seen so called professional marine electricians using this type of terminal block….Pitiful isn’t it !

There are so many type of electrical connector – all claiming to be for marine use ….


The ML-XT Sealed Connection System by Molex claims to be the best sealed system in the market today, preventing electrical failures in critical wiring applications. Premium grade liquid silicone rubber (LSR) material ensures the ML-XT connector system meets

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