HMS Blyth (M111): From Bahrain's Gulf Squadron to Guarding Romania's Black Sea Coast

A Purpose-Built Minehunter

HMS Blyth was built by Vosper Thornycroft at their Woolston yard in Southampton, laid down on 30 May 1999, launched in May 2000, and entering Royal Navy service in February 2001.

A Sandown-class Single-Role Minehunter, one of twelve such vessels built for the Royal Navy, HMS Blyth was constructed with a glass-reinforced plastic hull to minimise her magnetic signature, fitted with sonar and remotely operated underwater vehicles designed to locate and neutralise sea mines without ever needing to bring the ship herself into direct contact with them, precision, unglamorous work that nonetheless keeps vital shipping lanes safe.

Single role is the important phrase, and it separates her sharply from the Hunt class, which both sweeps and hunts. A Sandown does not sweep at all. Everything about her is optimised for finding an individual object on the sea bed and dealing with it, and two features make that possible. The first is a variable depth sonar, carried on a body that can be lowered on a cable beneath the ship, which matters because sea water forms temperature layers that bend sound: a mine sitting under a thermal layer is effectively invisible to a hull-mounted set, and getting the sonar below the layer with it solves the problem. The second is vectored thrust. Instead of a rudder and a propeller she has drives that can push in any direction, letting her hold a fixed position over a mine in a three-knot tideway without anchoring, which is the only way to fly a remote vehicle onto a target with any precision.

For her first several years in commission HMS Blyth operated close to home, based at Faslane on the Clyde with the 1st Mine Countermeasures Squadron, working up and taking on the routine mix of exercises, port visits and domestic tasking that every minehunter cuts her teeth on before being trusted with anything more demanding.

Years on Gulf Patrol

That changed at the end of 2006, when HMS Blyth and her sister ship HMS Ramsey became the first two Royal Navy minehunters sent out to Bahrain under Operation Aintree, the mission that established a permanent Royal Navy minehunting presence in the Gulf under its later name, Operation Kipion, a presence that continues to this day. Among her most significant early jobs, in 2008, was helping to clear the Khawr Abd Allah waterway to Iraq's key port of Umm Qasr, heavily mined in two previous Gulf conflicts: working alongside the US Navy over six weeks, the team located and classified 2,000 underwater contacts across an area the size of the Isle of Wight before declaring the route safe. One young officer aboard Blyth for that operation, Lieutenant Neil Skinner, returned to Bahrain fourteen years later in command of HMS Middleton, by which point several of his own junior ratings from Blyth had themselves grown into senior figures in the Gulf's mine warfare community, a neat measure of just how enduring that original 2006 commitment turned out to be. The force Blyth helped pioneer eventually doubled to four minehunters and, from 2018, gained a permanent shore base at HMS Jufair, the UK Naval Support Facility Bahrain, with Blyth herself attached to the 9th Mine Countermeasures Squadron there until 2020, when she was replaced on station by HMS Penzance.

The reason for keeping ships permanently in Bahrain comes down to a piece of geography. The Strait of Hormuz is about twenty-one miles wide at its narrowest point, and the deep water actually usable by a laden tanker is a good deal narrower than that, two shipping lanes a couple of miles across. Something like a fifth of the world's seaborne oil goes through that gap. Mines are by a wide margin the cheapest way of closing it: a few dozen weapons laid from fishing boats would stop traffic within hours, and the threat has been made publicly and repeatedly. Four minehunters and a shore base at Bahrain is what insuring against that looks like, and it is a great deal less expensive than the alternative.

The Umm Qasr job was a bigger undertaking than the sentence allows. The Khawr Abd Allah is the only maritime access Iraq has, a shallow tidal waterway leading to her only deep-water port, and it had been mined in the Iran-Iraq war, mined again in 1991 and interfered with again in 2003, which meant the bottom held an unknown mixture of weapons of several nationalities and several decades along with a great deal of ordinary wreckage. Two thousand contacts across an area the size of the Isle of Wight is two thousand objects each of which had to be found, looked at and either dismissed or dealt with. And there is no such thing as proving a channel empty. What a mine countermeasures force can do is search to a defined standard and hand the customer a calculated residual risk, which is a rather less comfortable thing to say than safe but is what the word actually means.

Blyth's own final stretch of that long Gulf commitment ended in September 2020, when she and the Hunt-class minehunter HMS Ledbury completed the roughly 6,000-mile passage home together before splitting for their respective bases, Blyth back to Faslane and Ledbury on to Portsmouth. Her commanding officer for that last leg, Lieutenant Commander Pete Ellison, called it "an extremely successful three years of operations for Blyth", a deployment that had also had to adapt at short notice to the covid-19 pandemic partway through, with crews confined to base or ship whenever alongside.

That final Gulf tour had been demanding enough to earn its commanding officer national recognition: in November 2020, Lieutenant Commander Ben Martin was awarded the MBE for his "dynamic" and "resourceful" leadership of HMS Blyth during, in the Royal Navy's own words, the highest tempo of operations for any minehunter in a decade, much of it conducted without the protection of a frigate or destroyer nearby. Martin himself described being "tested and challenged almost relentlessly" from the summer of 2019 into early 2020, a mark of the quiet but particularly significant contribution HMS Blyth made to maritime security in one of the world's most strategically sensitive waterways.

A Final NATO Deployment

In February 2021, having spent the autumn and winter fully repaired and worked up after her long Gulf tour, HMS Blyth left the Clyde to join Standing NATO Mine Countermeasures Group One, a small international force of like-minded minehunters that divides its time between clearing the still-dangerous leftovers of twentieth-century wars and staying ready for a modern one. In the Dutch-led group she found an old friend waiting: the Estonian minehunter Ugandi, a former Sandown-class sister ship that had spent a decade in Royal Navy service as HMS Bridport before being sold to Estonia in the mid-2000s. "It is great to be in a NATO Group which includes another Sandown Class MCMV," said Blyth's navigator, Lieutenant Conor Smith, "and two Sandowns working together pack a serious mine-hunting punch."

Over two months with the group, Blyth sailed more than 4,000 miles, visited the Netherlands, Norway, Germany and Sweden, and took part in four multinational exercises alongside warships from Belgium and Germany, including a historic ordnance disposal sweep off Denmark that turned up two genuine Second World War mines, both safely neutralised more than seventy-five years after they were laid. The deployment ended with a rendezvous in Kiel with a force of fourteen Allied warships and a transit of the Kiel Canal, the world's busiest artificial waterway, before Blyth returned to Scotland at the end of March 2021 in time for Easter.

It proved to be her final operational deployment. HMS Blyth was decommissioned in a joint ceremony with HMS Ramsey at Rosyth on 4 August 2021, bringing to a close a Royal Navy career of twenty years and 185,000 miles. Her final commanding officer, Lieutenant Commander Simon Henderson, said the crew were "immensely proud of what this ship has achieved in her lifetime", while Ramsey's own final captain reflected that after 21 years and 175,000 miles of her own, it was "time to say farewell to a ship that has been both a home and a way of life to so many."

A New Flag on the Black Sea

Rather than being scrapped, HMS Blyth was given a second life, though not quite the one first announced: when she was decommissioned in 2021 the Royal Navy said she and Ramsey would eventually pass to Ukraine, but by October 2022 those plans had changed, and it was Blyth, refitted by Babcock, that was formally handed over to Romania instead, at a ceremony held at Rosyth on 27 September 2023. Renamed Sublocotenent Ion Ghiculescu and given the new pennant number M270, she sailed for her new home on 15 November 2023 with a Romanian crew of forty who had spent the summer and autumn training alongside the Royal Navy, covering some 4,500 nautical miles down the Atlantic, through the Mediterranean and the Sea of Marmara, and into the Black Sea before reaching the port of Constanța on 19 December 2023 to join Romania's 146th Mine Countermeasures Division, the first of two Sandown-class sisters transferred to Romania under the same agreement, with HMS Pembroke following in 2024.

The change of destination is worth explaining, because it turns on a treaty signed in 1936. The Montreux Convention gives Turkey control of the Bosphorus and the Dardanelles, and it contains a provision, Article 19, allowing her in wartime to close the straits to the warships of belligerent powers. Turkey recognised the fighting in Ukraine as a war in February 2022 and applied it. The practical consequence is that no warship can now enter the Black Sea unless she is homeported there, which is why NATO cannot simply send its standing mine countermeasures group in, and why, in January 2024, the two former Royal Navy Sandowns transferred to Ukraine, one of them renamed Chernihiv, were refused passage and have remained outside the Black Sea ever since. Romania, however, is a Black Sea state. A minehunter flying Romanian colours can go where the mines actually are. Handing Blyth to Bucharest was not a watering down of the original plan; it was the only version of it that got a ship to the problem.

Her new role, countering the very real threat of mines drifting into the Black Sea amid the war in Ukraine, gives HMS Blyth's hard-won mine countermeasures expertise a genuinely important second life. Floating mines have become a persistent hazard for every state around the Black Sea, and in early 2024 Romania, Turkey and Bulgaria agreed a joint plan to clear them together, exactly the kind of allied, close-quarters mine warfare that a British-built, Bahrain-tested minehunter, now flying Romanian colours, is rather well suited to.

The joint arrangement that followed reflects exactly the same logic. Turkey, Romania and Bulgaria activated the MCM Black Sea Task Group at a ceremony in Istanbul on 1 July 2024, and its membership is limited to those three not out of exclusivity but because they are the only NATO countries whose warships can lawfully be there at present. Several hundred mines have been laid in the Black Sea since 2022 by both sides, a great many have broken adrift in winter weather, and they have turned up on the Turkish, Romanian and Bulgarian coasts and in the shipping lanes between them. A drifting mine does not check whose flag a merchant ship is flying.

The Royal Navy, meanwhile, has been getting out of the business of crewed minehunters altogether. The whole Sandown class has now gone, and the intended replacement is not another ship but a set of systems: uncrewed boats towing sonars and influence sweeps, controlled from a mother vessel or from ashore, so that when a minefield has to be entered the thing entering it does not have forty people inside. It is a sensible direction and it is not yet a complete answer. In the meantime, two of the ships the Royal Navy no longer wanted are doing the job in the Black Sea under a different flag, which is not the worst outcome for a twenty-year-old minehunter.