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Displaying items by tag: torpedo

#torpedo – An investigation is under way after a 9ft–missile was fired from HMS Argyll at high security Plymouth nuclear submarine dockyard during a training drill this week. 

A Royal Navy spokesman said: "We can confirm an incident occurred onboard HMS Argyll on Wednesday, March 12, at 3.24pm, while the ship was alongside at Devonport Naval Base in Plymouth.

"During a training exercise, an inert Test Variant Torpedo (TVT) unexpectedly jettisoned onto the wharf. There was no explosion and no casualties.

A source said: "The torpedo came shooting out of the side of Argyll and flew through the air before going straight through a security fence.

"It's carried on going before hitting a storage container. If anyone was inside it they would have a had a nasty shock - the whole side of the container was stoved in.

The Telegraph has much more on the story here.

Published in News Update

#Torpedo - Taoiseach Enda Kenny had paid tribute to the Castlebar-born inventor of the steerable torpedo at the unveiling of a headstone on Louis Brennan's grave in London.

As the Irish Independent reports, Brennan - who lived from 1852 to 1932 - was a renowned inventor, credited with developing the world's first practical guided missile that he patented as the 'Brennan Torpedo', and tested at Fort Camden in Cork Harbour in the late 1870s.

Raised in Melbourne, Australia, Brennan spent much of his working life in Britain inventing for the military, developing such concepts as a revolutionary monorail system that attracted the attention of Winston Churchill.

However, following his death in a car accident in Switzerland, Brennan lay in an unmarked grave in Kensal Green, northwest London.

Now a group of history buffs from Brennan's Mayo birthplace have finally marked that spot with a headstone, as well as a plaque commemorating his life and achievements in the cemetery's oratory.

"I am pleased today that we have this opportunity to restore and publicly acknowledge the resting place of Louis Brennan," said the Taoiseach at the unveiling ceremony yesterday (11 March).

"But also, in a sense, to redeem ourselves in that we left him here alone unknown for so long."

The Irish Independent has more on the story HERE.

Published in News Update
Tagged under

#INLAND WATERWAYS - As Derek Evans writes in The Irish Times, the recent discovery of the first Guinness merchant vessel - sunk a century ago by a German torpedo in the Irish Sea - rekindled memories of the brewery's boats on the Liffey in the 1950s.

He writes: "Living close to Stoneybatter, I often took time to stand on Queen Street Bridge as the barges, filled with Guinness barrels, slowly made their way from James’s Gate to Sir John Rogerson’s Quay.

"I remember clearly the skipper standing beside the open wheelhouse in his navy blue polo-neck jumper, captain’s hat and pipe... The skipper always had a smile and a wave before he would disappear for a few moments under the white cloud."

He also recalls the hoisting of the barrells at Butt Bridge onto the Guinness cargo vessels - like the WM Barkley, the Lady Grania or Gwendolen Guinness - for transport to Liverpool.

As previously reported on Afloat.ie, the wreck of the WM Barkley was captured in high-resolution images taken from the national research vessel RV Celtic Voyager off the coast of Dublin.

The Irish Times has more on the story HERE.

Published in Inland Waterways
High Resolution images of a merchant ship which was sunk ninety-four years ago today (October 12th) off the coast of Dublin have been revealed by the INFOMAR (Integrated Mapping For the Sustainable Development of Ireland's Marine Resource) Programme during a mission on the national research vessel the RV Celtic Voyager earlier this year which surveyed the wreck of the first Guinness merchant vessel, the W.M. Barkley.

The detailed seabed images, which include deck features and complex sand wave structures, were recorded by towed sidescan sonar provided by the Moore Marine Group, and give a visual insight into the defensively armed ship that was sunk by a German torpedo in 1917, seven miles east of the Kish Bank off Dublin.

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Photos above and below show topographic seafloor images in 3D, showing the partially buried wreck of the W M Barkley lying at a water depth of 56 metres; with deeper scouring around it down to 72 metres (darker colours indicate greater depths). The images were created from sonar data acquired onboard the Marine Institute's research vessel RV Celtic Voyager, during INFOMAR Programme mapping in 2010 and 2011 with data processed by INFOMAR's Fabio Sacchetti (University of Ulster) and Charise McKeon (Geological Survey of Ireland).

W_M_Barkley

In May 2010, during a large scale mapping survey in the Irish Sea by INFOMAR, a national marine study run by the Marine Institute and the Geological Survey of Ireland, identified a seabed feature which, to the trained eye, was discernable as a potential shipwreck lying in the same position recorded on the Admiralty Chart, the EU wreck site and UK Hydrographic Office wreck site directories, as well as a survey conducted in the 1980s as the last known position of the W.M.Barkley.

Viewing the spectacular imagery of the shipwreck Minister for Communications, Energy & Natural Resources, Pat Rabbitte, said "I am delighted to note the continued excellence of the valuable work being carried out under the INFOMAR project. These images from the deep reveal a unique view of part of Ireland's marine heritage and I am delighted to announce details of INFOMAR''s annual seminar to be held in Galway on November 16 and 17th."

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Eibhlin Roche - Guinness Archivist, Guinness Storehouse with the model of the W.M. Barkley. Photo: Jason Clarke Photography

Ninety four years ago on the dark night of October 12th 1917 the W.M.Barkley was torpedoed without warning by the German submarine UC-75. Within minutes the ship, which was owned and operated by the Guinness Company of Dublin, broke in two and sank, taking with her to the bottom four men including her Captain and leaving the rest of her crew to face the sea in an open lifeboat. Now, the darkness where the ship has lain in pieces has been disturbed, probed by fingers of sound that are mapping the seabed in incredible details and bringing to light the position of this famous Irish shipwreck.

"As the first Guinness owned ship, the W.M. Barkley played an important role in the story of the transportation of GUINNESS beer overseas," said Eibhlin Roche, Guinness Archivist. The events of the night of 12th October 1917 are very much part of the history of Guinness that is recorded in the Guinness Archive. It is exciting to finally know the exact resting place of the W.M. Barkley."

A scale model of the W.M. Barkley is on display in the Transport Gallery of Guinness Storehouse remembering the lives of the Guinness men who both perished and survived the events of 12th October 1917. These are stories of tragedy and bravery portraying Irish traditional values, and how they were brought to light with the application of cutting-edge technology.

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Koen Verbruggen (GSI), Minister Pat Rabbitte, Dr. Peter Heffernan (CEO, Marine Institute), Eibhlin Roche (Guinness Archivist, Guinness Storehouse) and David Smith (Country Director, Diageo Ireland) Photo: Jason Clarke Photography

 

Published in Marine Science
American Gregg Bemis is headed to Ireland for what may be the last major dive to the wreck of the Lusitania.
Bemis, who owns the wreck of the former Cunard cruise liner torpedoed off the Cork coast in 1915, told The Irish Times that hopes to discover once and for all what was in the cargo hold of the ship - and give an answer to rumours that precious art and munitions were part of the manifest.
The millionaire has fought with the Irish State over the rights to the wreck site, to which he has dived twice before, but now he has full licence and access to the latest technology to unveil the Lusitania's deepest secrets.
The Irish Times has more on the story HERE.

American Gregg Bemis is headed to Ireland for what may be the last major dive to the wreck of the Lusitania.

Bemis, who owns the wreck of the former Cunard cruise liner torpedoed off the Cork coast in 1915, told The Irish Times that hopes to discover once and for all what was in the cargo hold of the ship - and give an answer to rumours that precious art and munitions were part of the manifest.

The millionaire has fought with the Irish State over the rights to the wreck site, to which he has dived twice before, but now he has full licence and access to the latest technology to unveil the Lusitania's deepest secrets.

The Irish Times has more on the story HERE.

Published in Coastal Notes

Scuba Divers have found a fully intact World War I U-Boat on the seabed just outside Cork harbour, some 93 years after it sank writes Timmy Carey.

During the First World War the menace provided by German U-Boats would prove deadly to the Allies and were responsible for sinking millions of tons of shipping; indeed German U-Boats almost changed the course of the war. Most allied ships sunk by U-boats were sunk by either torpedo, deck gunfire or explosives placed aboard the ship by U-boat crew. A smaller number of ships were also sunk by mine laying U-boats; one of these being UC42. On the 10th of September of 1917 UC42 was laying her deadly cargo of mines at the entrance to Cork harbour when a terrific explosion occurred which resulted in a grim death for all 27 German Submariners aboard.

As the submarine sank to the seabed the German submariners were trapped inside UC42, which would soon become their metal tomb.

On November  2nd of that year, hardhat divers from the Haulbowline dockyard dived the area and positively identified the U-boat as UC42, noting the stern damage to the submarine and the presence of the bodies of some of the German submariners. During 1918 the submarine was dived by Haulbowline and American divers in an effort to disarm all the mines and torpedoes still aboard, with USS Melville taking three of the mines. It was widely believed that in July 1919 divers using explosives from HMS Vernon torpedo school had destroyed the submarine with the remains being dispersed on the seabed by wire sweeps.

With the advent of scuba diving many divers have since searched for the scattered remains of UC42 around Cork harbour with no luck until a recent dive by two local divers Ian Kelleher and Niall O Regan descended a shot line to see the menacing sight of the hull of a German U-boat emerge from the shadows. Both divers were very surprised and ecstatic to find a fully intact World War I U-Boat in 27 meters of water just outside Cork harbour in good condition with little obvious explosive damage from the British naval dive team.

A local dive team of five divers had spent the previous 12 months carrying out a careful methodical search of the greater harbour area determined to find the remains of the submarine; their hard labours finally paying dividends when Niall and Ian identified the presence of the submarine. The dive team consisted of Ian Kelleher, Niall O Regan, Philip Johnston,  Eoin Mc Garry and Timmy Carey.

Over the past few weeks the divers have carefully and methodically videoed and photographed the Submarine and taken various measurements to record the wrecks' condition. Over a number of dives the dive team carefully cleaned the growth from the propeller and after some methodical cleaning found the U-Boats number UC42 stamped into it; positively identifying the submarine.

As the submarine is a war grave and contains the remains of so many young German submariners the dive team also laid a plaque of remembrance, which was erected near the submarines propellers; to act as a memorial to the German submariners forever entombed in UC42. The plaque was kindly donated to the dive team by John O' Mahony of Complete Signs.

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The image of the U-Boats propellor with the markings identifying the U-Boat. Photo: Timmy Carey

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A badly decayed mine on UC42 still in the mine chute. Photo: Timmy Carey

RTE News Video clip here

Published in Diving

Ireland's Offshore Renewable Energy

Because of Ireland's location at the Atlantic edge of the EU, it has more offshore energy potential than most other countries in Europe. The conditions are suitable for the development of the full range of current offshore renewable energy technologies.

Offshore Renewable Energy FAQs

Offshore renewable energy draws on the natural energy provided by wind, wave and tide to convert it into electricity for industry and domestic consumption.

Offshore wind is the most advanced technology, using fixed wind turbines in coastal areas, while floating wind is a developing technology more suited to deeper water. In 2018, offshore wind provided a tiny fraction of global electricity supply, but it is set to expand strongly in the coming decades into a USD 1 trillion business, according to the International Energy Agency (IEA). It says that turbines are growing in size and in power capacity, which in turn is "delivering major performance and cost improvements for offshore wind farms".

The global offshore wind market grew nearly 30% per year between 2010 and 2018, according to the IEA, due to rapid technology improvements, It calculated that about 150 new offshore wind projects are in active development around the world. Europe in particular has fostered the technology's development, led by Britain, Germany and Denmark, but China added more capacity than any other country in 2018.

A report for the Irish Wind Energy Assocation (IWEA) by the Carbon Trust – a British government-backed limited company established to accelerate Britain's move to a low carbon economy - says there are currently 14 fixed-bottom wind energy projects, four floating wind projects and one project that has yet to choose a technology at some stage of development in Irish waters. Some of these projects are aiming to build before 2030 to contribute to the 5GW target set by the Irish government, and others are expected to build after 2030. These projects have to secure planning permission, obtain a grid connection and also be successful in a competitive auction in the Renewable Electricity Support Scheme (RESS).

The electricity generated by each turbine is collected by an offshore electricity substation located within the wind farm. Seabed cables connect the offshore substation to an onshore substation on the coast. These cables transport the electricity to land from where it will be used to power homes, farms and businesses around Ireland. The offshore developer works with EirGrid, which operates the national grid, to identify how best to do this and where exactly on the grid the project should connect.

The new Marine Planning and Development Management Bill will create a new streamlined system for planning permission for activity or infrastructure in Irish waters or on the seabed, including offshore wind farms. It is due to be published before the end of 2020 and enacted in 2021.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE.

There are a number of companies aiming to develop offshore wind energy off the Irish coast and some of the larger ones would be ESB, SSE Renewables, Energia, Statkraft and RWE. Is there scope for community involvement in offshore wind? The IWEA says that from the early stages of a project, the wind farm developer "should be engaging with the local community to inform them about the project, answer their questions and listen to their concerns". It says this provides the community with "the opportunity to work with the developer to help shape the final layout and design of the project". Listening to fishing industry concerns, and how fishermen may be affected by survey works, construction and eventual operation of a project is "of particular concern to developers", the IWEA says. It says there will also be a community benefit fund put in place for each project. It says the final details of this will be addressed in the design of the RESS (see below) for offshore wind but it has the potential to be "tens of millions of euro over the 15 years of the RESS contract". The Government is also considering the possibility that communities will be enabled to invest in offshore wind farms though there is "no clarity yet on how this would work", the IWEA says.

Based on current plans, it would amount to around 12 GW of offshore wind energy. However, the IWEA points out that is unlikely that all of the projects planned will be completed. The industry says there is even more significant potential for floating offshore wind off Ireland's west coast and the Programme for Government contains a commitment to develop a long-term plan for at least 30 GW of floating offshore wind in our deeper waters.

There are many different models of turbines. The larger a turbine, the more efficient it is in producing electricity at a good price. In choosing a turbine model the developer will be conscious of this ,but also has to be aware the impact of the turbine on the environment, marine life, biodiversity and visual impact. As a broad rule an offshore wind turbine will have a tip-height of between 165m and 215m tall. However, turbine technology is evolving at a rapid rate with larger more efficient turbines anticipated on the market in the coming years.

 

The Renewable Electricity Support Scheme is designed to support the development of renewable energy projects in Ireland. Under the scheme wind farms and solar farms compete against each other in an auction with the projects which offer power at the lowest price awarded contracts. These contracts provide them with a guaranteed price for their power for 15 years. If they obtain a better price for their electricity on the wholesale market they must return the difference to the consumer.

Yes. The first auction for offshore renewable energy projects is expected to take place in late 2021.

Cost is one difference, and technology is another. Floating wind farm technology is relatively new, but allows use of deeper water. Ireland's 50-metre contour line is the limit for traditional bottom-fixed wind farms, and it is also very close to population centres, which makes visibility of large turbines an issue - hence the attraction of floating structures Do offshore wind farms pose a navigational hazard to shipping? Inshore fishermen do have valid concerns. One of the first steps in identifying a site as a potential location for an offshore wind farm is to identify and assess the level of existing marine activity in the area and this particularly includes shipping. The National Marine Planning Framework aims to create, for the first time, a plan to balance the various kinds of offshore activity with the protection of the Irish marine environment. This is expected to be published before the end of 2020, and will set out clearly where is suitable for offshore renewable energy development and where it is not - due, for example, to shipping movements and safe navigation.

YEnvironmental organisations are concerned about the impact of turbines on bird populations, particularly migrating birds. A Danish scientific study published in 2019 found evidence that larger birds were tending to avoid turbine blades, but said it didn't have sufficient evidence for smaller birds – and cautioned that the cumulative effect of farms could still have an impact on bird movements. A full environmental impact assessment has to be carried out before a developer can apply for planning permission to develop an offshore wind farm. This would include desk-based studies as well as extensive surveys of the population and movements of birds and marine mammals, as well as fish and seabed habitats. If a potential environmental impact is identified the developer must, as part of the planning application, show how the project will be designed in such a way as to avoid the impact or to mitigate against it.

A typical 500 MW offshore wind farm would require an operations and maintenance base which would be on the nearby coast. Such a project would generally create between 80-100 fulltime jobs, according to the IWEA. There would also be a substantial increase to in-direct employment and associated socio-economic benefit to the surrounding area where the operation and maintenance hub is located.

The recent Carbon Trust report for the IWEA, entitled Harnessing our potential, identified significant skills shortages for offshore wind in Ireland across the areas of engineering financial services and logistics. The IWEA says that as Ireland is a relatively new entrant to the offshore wind market, there are "opportunities to develop and implement strategies to address the skills shortages for delivering offshore wind and for Ireland to be a net exporter of human capital and skills to the highly competitive global offshore wind supply chain". Offshore wind requires a diverse workforce with jobs in both transferable (for example from the oil and gas sector) and specialist disciplines across apprenticeships and higher education. IWEA have a training network called the Green Tech Skillnet that facilitates training and networking opportunities in the renewable energy sector.

It is expected that developing the 3.5 GW of offshore wind energy identified in the Government's Climate Action Plan would create around 2,500 jobs in construction and development and around 700 permanent operations and maintenance jobs. The Programme for Government published in 2020 has an enhanced target of 5 GW of offshore wind which would create even more employment. The industry says that in the initial stages, the development of offshore wind energy would create employment in conducting environmental surveys, community engagement and development applications for planning. As a site moves to construction, people with backgrounds in various types of engineering, marine construction and marine transport would be recruited. Once the site is up and running , a project requires a team of turbine technicians, engineers and administrators to ensure the wind farm is fully and properly maintained, as well as crew for the crew transfer vessels transporting workers from shore to the turbines.

The IEA says that today's offshore wind market "doesn't even come close to tapping the full potential – with high-quality resources available in most major markets". It estimates that offshore wind has the potential to generate more than 420 000 Terawatt hours per year (TWh/yr) worldwide – as in more than 18 times the current global electricity demand. One Terawatt is 114 megawatts, and to put it in context, Scotland it has a population a little over 5 million and requires 25 TWh/yr of electrical energy.

Not as advanced as wind, with anchoring a big challenge – given that the most effective wave energy has to be in the most energetic locations, such as the Irish west coast. Britain, Ireland and Portugal are regarded as most advanced in developing wave energy technology. The prize is significant, the industry says, as there are forecasts that varying between 4000TWh/yr to 29500TWh/yr. Europe consumes around 3000TWh/year.

The industry has two main umbrella organisations – the Irish Wind Energy Association, which represents both onshore and offshore wind, and the Marine Renewables Industry Association, which focuses on all types of renewable in the marine environment.

©Afloat 2020