Founded 1962

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Aims of ISA GB

The International Submariners Association is an organisation to perpetuate the memory of submariners who have died in the service of their country, and to encourage social activities which promote comradeship among submariners worldwide.


Applications for membership are welcome from serving or ex-submariners of any nation. Click here for Membership Application

Membership Application Welcome

To the International Submariners Association Great Britain web site.

We are always happy to have new members join us.  If you are serving or ex-submariners of any nation, and are interested in joining us, or need more information on ISA GB events, and International congress, please contact us.

Four meetings per year, normally held in the Middle section of the UK.  Below are listed future event as known.Click on Event to see Hotel address.

Ironbridge 24th 25th  November  2017

EventMap Founded 1962

The Association was formed in 1962 and is non-political and non-denominational. The aim of the Association is to show friendship and goodwill towards each other. To arrange exchange visits for us and our children for a better understanding in the future. To remain loyal to our Sovereign and country at all times and to work for the ideals that World War II was fought – freedom of speech, expression and thoughts.

The I.S.A. is a world wide Association of Submariners, which includes members from Albania Argentina, Australia, Austria, Belarus, Belgium, Canada, Chile, Croatia, Czechoslovakia Estonia, France, Germany, Great Britain, Greece, Israel, India, Italy, Kazakhstan, Netherlands New Zealand, Norway, Peru,  Poland, Russia, Slovenia, Sweden, Switzerland, Turkey, the Ukraine ,and the USA.

Annually, a 3 day Congress is held, hosted by a different country each year, when Submariners and their ladies from all over the world enjoy getting together socially, meeting old friends and making new ones, dining and dancing, sightseeing etc.

The I.S.A.[GB] holds four meetings per year- in the Middle section of the UK, i.e. North, Stoke across to Norwich and South, Cardiff across to Southend. A hotel is chosen in the designated area, where we can have our meeting on the Saturday and dine together in the evening. These meetings have also become great social occasions where we meet up with old boat mates and enjoy a few drinks together. The ladies are also made most welcome – in fact, the I.S.A. encourages the ladies to take part in all their activities.

Further information about any of the above is available on request from the Secretary.

Every year a international congress is held in a host country.   

Next year it will be Gdansk in Poland..

55th ISA Congress 2018  Gdansk in Poland

Milton Keynes 9th 10th February 2018


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HMS Dreadnought

The Royal Navy had been researching designs for nuclear propulsion plants since 1946, but this work was suspended indefinitely in October 1952[1] In 1955 the United States Navy completed USS Nautilus, the world's first nuclear-powered submarine. During subsequent exercises with the Royal Navy, Nautilus demonstrated the advantages of the nuclear submarine against British anti-submarine forces, which had developed extensive anti-submarine warfare techniques during the Second Battle of the Atlantic. The Admiralty appreciated the utility of such vessels and under the drive of the First Sea Lord, Admiral The Earl Mountbatten of Burma and the Flag Officer Submarines, Sir Wilfred Woods, plans were formed to build nuclear-powered submarines.

Although the plan was to build all-British nuclear submarines, much time would be saved by accepting US nuclear technology. The excellent relations between Admiral Mountbatten and US Navy Chief of Naval Operations Arleigh Burke, expedited obtaining that help. This was despite Rear Admiral Hyman Rickover, in charge of the American naval nuclear power program, being set against any transfer of technology; indeed, Rickover prevented Mountbatten inspecting USS Nautilus. It was not until a visit to Britain in 1956 that Rickover changed his mind and withdrew his objections.[1] Although Rickover wished to supply the third generation S3W reactor of the Skate class, Mountbatten exerted his influence and the entire machinery system for an American Skipjack-class submarine, with its fifth generation S5W reactor, was obtained.[1] This was known as the "American Sector" (see 1958 US-UK Mutual Defence Agreement). The hull and combat systems of Dreadnought were of British design and construction, although British access to the Electric Boat Company influenced the hull form and construction practices.

Dreadnought was laid down on 12 June 1959, and launched by Queen Elizabeth II on Trafalgar Day, 21 October 1960. The reactor was embarked in 1962 and Dreadnought made her first dive, in Ramsden Dock, on 10 January 1963. She commissioned on 17 April 1963.

During Dreadnought's construction, Rolls-Royce, in collaboration with the United Kingdom Atomic Energy Authority at the Admiralty Research Station, HMS Vulcan, at Dounreay, developed a completely new British nuclear propulsion system. On 31 August 1960, the UK's second nuclear-powered submarine was ordered from Vickers Armstrong and, fitted with Rolls-Royce's PWR1 nuclear plant, Valiant was the first all-British nuclear submarine.

Please note, that due to hotel availability the Congress will be held from 20th - 24th of May.

The Oberon class was a direct follow on of the Porpoise-class, with the same dimensions and external design, but updates to equipment and internal fittings, and a higher grade of steel used for fabrication of the pressure hull.

As designed for British service, the Oberon-class submarines were 241 feet (73 m) in length between perpendiculars and 295.2 feet (90.0 m) in length overall, with a beam of 26.5 feet (8.1 m), and a draught of 18 feet (5.5 m). Displacement was 1,610 tons standard, 2,030 tons full load when surfaced, and 2,410 tons full load when submerged. Propulsion machinery consisted of 2 Admiralty Standard Range 16 VMS diesel generators, and two 6,000 shaft horsepower (4,500 kW) electric motors, each driving a 7 feet (2.1 m) 3-bladed propeller at up to 400 rpm. Top speed was 17 knots (31 km/h; 20 mph) when submerged, and 12 knots (22 km/h; 14 mph) on the surface. Eight 21-inch (530 mm) diameter torpedo tubes were fitted (six facing forward, two aft), with a total payload of 24 torpedoes. The boats were fitted with Type 186 and Type 187 sonars, and an I-band surface search radar. The standard complement was 68: 6 officers, 62 sailors.  Ocelot was laid down by Chatham Dockyard on 17 November 1960, and launched on 5 May 1962. The boat was commissioned into the Royal Navy on 31 January 1964. Ocelot was the last submarine built for the Royal Navy at Chatham Dockyard, although three more Oberons; Ojibwa, Onondaga and Okanagan-were built for the Royal Canadian Navy.

Operational history

After commissioning, Ocelot was assigned to the 3rd Submarine Squadron, based at HMNB Clyde, in Faslane. During the 1960s, Ocelot took part in clandestine missions. Ocelot attended the 1977 Silver Jubilee Fleet Review off Spithead when she was part of the Submarine Flotilla.

Decommissioning and fate

HMS Ocelot was paid off in August 1991 as the conventional submarine fleet of the RN began to decline, making way for the nuclear fleet. She was sold in 1992 and preserved as a fully tourable museum in Chatham Historic Dockyard.

In November 2013 the interior of HMS Ocelot was added to Google Street View by Google Business Photos Agency, CInsideMedia Ltd.

HMS Tally-Ho was a British submarine of the third group of the T class. She was built as P317 by Vickers Armstrong, Barrow, and John Brown & Company, Clydebank, and launched on 23 December 1942. She has been the only ship of the Royal Navy to bear the name Tally-Ho, probably after Tally-ho, a hunting call.

Second World War service

While commanded by Captain Leslie W. A. Bennington, Tally-Ho served in the Far East for much of her wartime career, where she sank 13 small Japanese sailing vessels, a Japanese coaster, the Japanese water carrier Kisogawa Maru, the Japanese army cargo ships Ryuko and Daigen Maru No.6, the Japanese auxiliary submarine chaser Cha 2, and the Japanese auxiliary minelayer Ma 4. She also damaged a small Japanese motor vessel, and laid mines, one of which damaged the Japanese merchant tanker Nichiyoku Maru.

On 11 January 1944, Tally-Ho, then based out of Trincomalee, Ceylon spotted the Japanese light cruiser Kuma and destroyer Uranami on anti-submarine warfare exercises about 10 miles (16 km) northwest of Penang. Tally-Ho fired a seven-torpedo salvo at the Japanese cruiser from 1,900 yards (1,700 m), hitting her starboard aft with two torpedoes, and setting the ship on fire. Kuma sank by the stern in the vicinity of 05°26?N 99°52?E.

Tally-Ho sank the German-commanded U-boat UIT-23 (formerly the Italian submarine Giuliani), just off the western mouth of Malacca Strait on 14 February 1944.

On the night of 24 February 1944 Tally-Ho was ordered back to the Sembilan Islands, and while zig-zagging on the surface at night charging the batteries, lookouts spotted two wakes ahead. Believing there was a possibility of the two vessels being friendly (both Truculent and Tactician being in the area), Tally-Ho immediately altered course to avoid a collision with the rapidly approaching vessels. On making a challenge with the Aldis lamp the vessels responded by altering course straight towards them and dropping depth charges, leaving no doubt they were unfriendly vessels. At this point the closest ship fired a shell which passed dangerously close over Tally-Ho's conning tower before the attacker passed closely by the submarine and then turned for another attack. During this encounter Tally-Ho had been unable to dive due to the proximity of the attackers and the shallowness of the waters in the straight, in addition, diving would have presented the attacking ships with the opportunity to ram or depth charge the submarine. In the darkness Tally-Ho manoeuvred to a parallel course to the approaching attacker and the enemy vessel passed closely by the submarine, a loud hammering and tearing noise being heard as the ship passed, the vessel being identified as a Hayabusa-class torpedo boat of 600 tons. As the attacker disappeared in the murk Tally-Ho took on a list to port and assumed a marked bow-down attitude. Bennington decided that the batteries would have sufficient charge to risk diving which Tally-Ho then did. Before closing the conning tower hatch, he noticed that the submarine had taken on a 12-degree list. Once submerged, the crew took stock of the damage, and apart from smashed light bulbs and gauge dial glasses, Tally-Ho appeared to be seaworthy, and she remained submerged until 06:30 of 24 February when Bennington brought Tally-Ho to periscope depth and observed his attacker making unusual manoeuvres apparently searching for the submarine on the starboard quarter some 4 miles (6.4 km) off. Tally-Ho remained dived for the following 12 hours before surfacing after dark at 18:25. Upon surfacing it was noticed that the submarine's list had increased to 15 degrees, and it was possible to see the damage to the submarine's port ballast tanks which were all open at the top and beyond further use. With transfer of fuel and water from various tanks and moving of stores and torpedoes, the bow-down attitude was reduced to 4 degrees, and the three-day journey to Trincomalee commenced. This was uneventful apart from encountering a monsoon during the passage of the Bay of Bengal and the possibility of encountering a Japanese submarine close to home. Arriving at Trincomalee harbour on 29 February 1944, Tally-Ho missed her escort and found herself amongst Admiral James Sommerville's battle fleet at exercises. Later, upon examination in dry dock prior to repairs, the extent of the damage to Tally-Ho's port ballast tanks became apparent. The rotating screws of the torpedo boat had run the length of the tanks, chewing large holes in them, phosphor bronze fragments of the attacker's propeller blades being discovered inside. Post-war enquiries learned that their attacker's behaviour after the attack had been due to a combination of Tally-Ho's lowered port bow hydroplane having pierced the torpedo boat's hull, and the vessel's port screw having been shorn of its blades almost down to the hub.

On 29 October 1944, Tally-Ho departed Ceylon carrying an OSS-sponsored three-man Free Thai team bound for Siam. On the way, Tally-Ho tried unsuccessfully to intercept a German submarine. The journey was further delayed by a search for downed Allied airmen near the Straits of Malacca. The Free Thai team was finally landed on Ko Kradan, Trang Province, on 9 November.

Post War service

Tally-Ho survived World War II and continued in service with the Royal Navy. In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II. She was sold to Thomas W. Ward Ltd and scrapped at Briton Ferry, Wales on 10 February 1967.

HMS M1 was a submarine of the British Royal Navy, one of four vessels of her class ordered towards the end of the First World War. She sank with the loss of her entire crew in 1925.

The vessels were originally intended as "submarine monitors", but their purpose had been changed before detailed design began. M1 was fitted with a 12-inch (305mm) gun which was intended for use against surface ships in preference to torpedoes, the argument being that, "No case is known of a ship-of-war being torpedoed when under way at a range outside of 1000 yards".

Although the gun had an effective range of 15,000 yards (14 km), it was normally fired using a simple bead sight at periscope depth with only the barrel above the water. It was important for the submarine's gun to sink or disable the target with the first shot, because the gun could only be loaded on the surface.

She was 295 feet 9 inches (90.14 m) long, displaced 1,950 long tons (1,980 t) submerged and operated out of Portsmouth. She was launched on 9 July 1917, but was not involved in active service in the First World War.

In 1923, water leaking into the barrel of the gun resulted in extensive damage to the muzzle when it was fired. She sank with all 69 hands on 12 November 1925 while on an exercise in the English Channel. A Swedish ship, SS Vidar, struck the submerged M1 and sank her in 70 m of water. The collision tore the gun from the hull and water flooded the interior through the open loading hole. The crew members appear to have tried to escape by flooding the interior and opening the escape hatch, but their bodies were never found.

Her wreck was discovered by a diving team led by Innes McCartney in 1999 at a depth of 73 m. Later that year, the wreck was visited again by Richard Larn and a BBC TV documentary crew, and the resulting film was broadcast in March 2000. The wreck is designated as a protected place under the Protection of Military Remains Act 1986.

The Trafalgar class is a class of nuclear-powered fleet submarines (SSNs) in service with the Royal Navy, and the successor to the Swiftsure class. Like the majority of Royal Navy nuclear submarines, all seven boats were constructed at Barrow-in-Furness shipyard, Cumbria. With four boats in commission and three retired, the class still makes up the majority of the Royal Navy's nuclear-powered 'hunter-killer' submarine force. The Trafalgar class is being gradually replaced by the larger and more capable Astute class of which 3 are complete. The name Trafalgar refers to the Battle of Trafalgar fought between the Royal Navy and the combined fleets of France and Spain in 1805.


24th - 25th November 2017


Best Western Valley Hotel

Buildwas Rd,






August 2018


Stratton House Hotel,

Gloucester Rd, Stratton,




11th - 12th May 2018


Holiday Inn

129 St Nicholas Cir,



Milton Keynes

9th - 10th February 2018


Best Western

Moore Place Hotel,

West Hill,

Aspley Guise,

Milton Keynes,

MK17 8DW