#Submarine - Could a supersonic submarine speed through the Pacific Ocean from San Francisco to Shanghai in less than two hours?

The Chinese engineers behind some remarkable new sub-sea technology seem to think so, as the South China Morning Post reports.

Their 'supercaptivating vehicle' design uses gas jets to envelope a vessel inside an air bubble that severely reduces the friction or drag experiences by objects moving through water.

In practice, the technology was developed by the Soviet military to send a torpedo rocketing through the water at an incredible 370km/h.

In theory, the same principles could be adapted to fit a much larger vessel such as a passenger submarine and send it zooming through the depths at a barely fathomable 5,800km/h – the speed of sound under water – and cut a transpacific trip to just 100 minutes.

The South China Morning Post has much more on the story HERE.

#Historic - Last weekend saw the unveiling in Drogheda of a sculpture of the Fenian Ram, the first successful submarine whose designer was connected with the town.

As The Irish Times reports, the modern submarine was pioneered by John Philip Holland, who worked as a teacher in the Boyne-side town before emigrating to the States and developing his submersible ideas for the US Navy.

The rest is history, as Holland's designs formed the basis of all modern submarines we know today.

Strangely enough, his story is entwined with that of another Irishman, Louis Brennan, who invented the world's first practical guided torpedo.

Holland died just weeks before the HMS Pathfinder became the first ship to be sunk by a submarine-launched underwater missile.

But his legacy is not all destruction, and better exemplified by the exploration work being done in the Whittard Canyon by the Marine Institute's unmanned submersible ROV Holland I, named for one of the Irishman's early submarine prototypes.

The Irish Times has more on the story HERE.

#INLAND WATERWAYS - It was a hotly anticipated find - but the image of what appeared to be a rare German submarine in the depths of Lough Foyle turned out to be a ghost.

RTÉ News reports that a team brought in to verify a sonar image captured by a search and rescue team from Mallow have confirmed that it was a 'sonic illusion'.

Northern Ireland's Environment Minister Alex Attwood called in the experts after the search team discovered what looked like the outline of a midget U-boat on the lough bed near Derry.

The possibility was a real one, as the lough had been a major naval base during the Second World War.

But a full survey of the lough revealed that the original image was an apparition caused by sonar distortion.

"There is no doubt for a moment there was a thrilling possibility which has now not come to pass," said the minister. "I do share a sense of disappointment."

RTÉ News has more on the story, including images and video, HERE.

Cork gardaí are investigating the looting of items from a First World War U-boat recently discovered off Roches Point.

The Irish Times reports that the submarine also appears to have been damaged by the illegal salvagers.

A spokesperson for the underwater archaeology unit of the Department of Arts, Heritage and the Gaeltacht confirmed that reports had come in from divers regarding disturbance of the wreck site - noting attempts to remove parts of the structure, and details of human remains.

Divers with the unit were expected to assess the site as soon as weather permits.

Items believed to have been taken include sailor's attire belonging to the crew of the 49-metre German vessel UC-42, which sank in 1917. The German embassy has indicated its "legitimate interest" in the preservation of the wreck.

The Irish Times has more on the story HERE.

To read further information about the cable installation project which is listed on the Port of Cork Company website under Notice to Mariners (No. 6 of 2011) click here.

The odd appearance of the barge masks a colourful and chequered career, as only a remnant of the original vessel survives (see photo). Only the forward section and bow (90m long X 20m beam) remain after the partial scrapping of the former oil tanker, Esso København, which took place nearly fifty years ago.

She was launched in 1930 as the MS Peter Hurll by the Palmers Shipbuilding and Iron Company Ltd (Yard/Hull no. 479) at Hebburn-on-Tyne, England. Measuring 11,952grt the tanker was commissioned for Baltisch-Amerik Petroleum Import G.m.b.H. (Waried Tankschiff Rhed.) of Danzig. For further details click here.

The vessel's profile was typical of the era, with a 'two-island' arrangement where the bridge superstructure is sited amidships and separated from the crew's accommodation quarters located aft on the poop deck at the stern.

At 452-foot long, the 17,585dwt vessel had a cargo carrying capacity of 138,108 barrels, which had an assigned pumping rate of 4,000 barrels an hour. The twin-screw diesel powered vessel had 5,300 brake horsepower engines that gave a speed of 12.3 knots.

In 1935 the vessel was sold to the Panama Transport Co. of Panama. While en route to Aruba, with an American crew, war was declared in Europe on  September 3, 1939. At the Caribbean island's port of Las Piedras the Peter Hurll loaded her first war-time cargo of 106,514 barrels of fuel and crude oils bound for Everett, Mass.

Throughout the war years the Peter Hurll was crewed at various times between  Americans and Danes. To read in greater detail the career history of the vessel and an account of the attempted U-Boat attack on the Peter Hurll click here. The tanker had several sisters, the F. H. Bedford Jr, J. H. Senior,  J.A. Mowinckel and The Heinrich v. Riedemann which was lost on April 16, 1942.

Only a few months after the war in February 1946, the Peter Hurll bunkered the Queen Mary, which was moored alongside Pier 90 on the North River, New York. In less than 10 hours the vessel tranferred 27,797 barrels of fuel in a direct tanker-to-ship delivery of fuel oil. The famous 80,000 tonnes Cunard liner which like the tanker, was also built in 1930, had been recently re-converted from a troopship to her peacetime role as a passenger-liner.

In 1967 the liner retired and the vessel is moored at Long Beach, California, as a static hotel, restaurant and museum (see www.queenmary.com).

Two years later the Peter Hurll changed ownership to Det Danske Petroleums A/S of Copenhagen but later under the control of Dansk Esso A/S was  renamed Esso København (see link) and the vessel was enlarged to a tonnage of 12,043grt.

In 1952, the vessel was taken to Odense, Denmark by H. J. Hansen, where the vessel was partially broken-up. The remaining fore-end survived and was rebuilt as a cable / pipe laying barge in 1963 (click here). The structure which essentially is a barge was named Henry P Lading for new owners, Nordisk Kabel og Traadfabrikker A/S, Copenhagen.

At one stage the barge was renamed "Nkt Cables a/S" but in 2002 the barge was sold to Jydsk Dykkerfirma ApS, now named JD Contractor A/S. The company (click here) is the largest underwater contractor in Denmark, providing diving assignments and the laying and embedding of submarine cables and pipelines worldwide.

Only late last year, scuba-divers found a fully intact World War I U-Boat on the seabed just outside Cork harbour. To read more about the U-Boat which sank some 93 years ago and photos click here.

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.

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

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

RTE News Video clip here