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Displaying items by tag: RV Tonn

#marinescience – Minister of State with responsibility for Natural Resources at the Department of Communications, Energy & Natural Resources, Joe McHugh T.D., today formally commissioned the INFOMAR Programme's new survey vessel, naming her the RV TONN at the Poolbeg Yacht, Boat Club & Marina.

As part of Ireland's national marine mapping initiative, the INFOMAR programme carries out hydrographic & geophysical surveys of Irish territorial waters. It is a cooperative programme between the Geological Survey of Ireland and the Marine Institute and is funded by the Department of Communications, Energy and Natural Resources.

Minister McHugh said "The INFOMAR programme is unique among the various projects funded by my Department, DCENR, in that, for 6 - 8 months of the year, the Infomar team of marine survey specialists live and work among the Irish coastal communities around the entire coast of Ireland." The Minister went on to say one of the achievements of the INFOMAR programme is the focus on disseminating new information on the Irish offshore, which is available free on the http://www.infomar.ie/data/ website. The Minster added "A really good example of the applied use of INFOMAR data is the smartphone App produced jointly by the Irish Underwater Council and INFOMAR, which affords a user access to The Wild Atlantic Way/Dive & Snorkelling sample locations.

The RV Tonn, is named appropriately after the Irish for wave, as it both operates on the waves and uses sound waves to investigate the depth and nature of the seabed. It is a new state of the art vessel, only 8 metres in length, but purpose built to carry out very shallow survey work. It was built by Cheetah Marine in the Isle of Wight after an open tender process.

This new vessel, RV Tonn, will support the completion of the first phase of the Infomar Project's mapping of three priority Areas and 26 priority bays, by the end of 2015.

Welcoming the launch, Koen Verbruggen, Director of the Geological Survey of Ireland, said "Up-to-date advanced mapping, facilitates greater awareness of Irish marine opportunities."

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About Electric outboard engines

The direct-drive component in electric outboard engines means that the electric motors are incredibly efficient compared to conventional marine combustion motors, operating with considerably higher torque whilst using less power.

Without any need for gears, cooling systems and moving parts the motors are maintenance free, highly efficient and economic to run.

As a result, electric boat engines are becoming more popular on Irish waters as the world transitions from fossil fuels to green energy.

To date, popular electric engine sizes have been trolling engines typically used by fishermen on lakes.

These marine engines are available in models that can be used in fresh water and sea water, for your boat or kayak.

Electric motors are Ideal for fishermen because they are quiet and create little in the way of disturbance 

Popular electric trolling models range from 30lb thrust to 55lb thrust in a range of shaft lengths.

But use is becoming broader now in 2021 and electric outboard engines are being used on small runabouts and RIBS where electric outboard engine sizes are getting bigger.

Outboard electric engines are economical and environmentally friendly. Battery technology is also improving at a rapid rate meaning they are becoming smaller and lighter and run for longer.

Built in hydro-generation provides alternative recharging options whilst under sail are also options meaning the electric outboard now has a home on the stern on small yachts and dayboats too.

As far back as 2014, Torqeedo owner Jack O'Keefe from Cork Harbour told Afloat readers of his sailing adventures in a Drascombe Coaster dinghy and how after swapping from a petrol version the rewards from his new electric outboard engine are less noise, no smells, more stowage, better sailing performance and a motor that can be started by a small child. But it's still not silent, there's a whine he says here 

Popular brands in Ireland are Torqeedo, ePropulsion, Pulsar and Minn Kota but there are more arriving all the time as the technology advances