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Warship Wednesday 26 November 2025: A Sad Affray

Above we see HM Submarine Affray (P421).

One of a class of 16 British A (Amphion/Acheron) class boats designed for use in the Pacific against the Empire of Japan in the latter stages of WWII, she commissioned 80 years ago this week and, while she did not get to fire a torpedo in anger against the Imperial Japanese Navy, Affray did go on to leave a tragic mark on naval history.

The A-class boats

By 1943, the writing was on the wall at the Admiralty that the naval war would soon shift to the Pacific and would be very different than that in the European theatre. Whereas small subs were ideal for work in the cramped English Channel, North Sea, and Mediterranean, larger hulls, more akin to American “fleet boats,” would be needed for far-ranging Pacific service.

The answer was the A-class boats, Britain’s only full-sized subs designed during WWII, which offered faster surface speeds, improved habitability under tropical conditions (they were the first RN boats to have air conditioning), and a double-hull structure. They used all-welded pressure hulls and welded fuel tanks inside, with ballast tanks adapted for extra diesel storage. With their 280-foot length, they were only a little shorter than the typical 311-footers seen in U.S. service while still being much larger than the  Royal Navy’s preceding 204-foot “Long hull” V-class submarines of the 1941–42 Programme. Even the RN’s vaunted T-class only ran 276 feet oal.

By comparison, the A boats could make 18.5 knots on the surface (with a 10,500nm range at 11) as compared to the 15.5 knots (8,000nm @ 10) of the T-class, and downright pokey 11.25 knots (3,000nm @ 9) of the V-class. The operating diving depth of the A-class was 350 feet (max 600), versus 300 on the riveted V and T classes.

The As were also heavily armed with 10 21-inch tubes: six at the bow (two external) and four (two external) at the stern. Besides the 10 loaded tubes, they could cram another 10 Mark VIII fish inside the pressure hull for reloads, although typically just six were carried. Instead of torpedoes, 18 1,700-pound Mark II/Type G ground mines could be carried and deployed. Deck guns included a QF 4″/40 Mk XXII in the sail, a 20mm Oerlikon, and up to three .303 Vickers guns. Sensors included a Type 267W air warning radar, which could function at periscope depth, as well as Types 138 and 152 sonars.

The 1943 Programme called for the construction of 46 Type A boats built across six yards: Vickers-Armstrong, Barrow-in-Furness; Cammell Laird, Birkenhead; Scotts Shipbuilding and Engineering Company, Greenock; Chatham Dockyard, Plymouth Dockyard, and Vickers-Armstrongs, Walker-on-Tyne.

Only two of the 46, the Barrow-built HMS Amphion (P439) and HMS Astute (P447), were commissioned before the end of hostilities, in March and June 1945, respectively. Even at that, they never arrived in the Far East in time to conduct a war patrol, spending their wartime career in workup and tests.

The 14 sister boats– Acheron, Aeneas, Alaric, Alcide, Alderney, Alliance, Ambush, Anchorite, Andrew, Artemis, Artful, Auriga, Aurochs, and our Affray— were completed between late 1945 and April 1948.

Two more, the would-be Ace (P414) and Achates (P433), were not fitted out but, launched and afloat, were in turn converted into target boats.

The order for the remaining 28 units (Adept, Andromache, Answer, Antagonist, Antaeus, ANZAC, Aphrodite, Admirable, Approach, Arcadian, Ardent, Argosy, Atlantis, Agile, Asperity, Austere, Aggressor, Agate, Abelard, Acasta, Alcestis, Aladdin, Aztec, Adversary, Asgard, Awake, Astarte, and Assurance) was cancelled.

Meet Affray

Our subject was laid down at the Cammell Laird yard in Birkenhead on 16 January 1944, launched on 12 April of that year.

Affray commissioned on 25 November 1945, and her first skipper was LCDR Ernest John Donaldson Turner DSO, DSC, RN, a submarine service steely regular who had commanded HMS Sibyl (P 217) for 17 war patrols in 1943-44 and had earned his DSO earlier in the war as XO of HMS L 23 (N 23).

Only two of Affray’s Cammell-built sisters, Aeneas and Alaric, would be completed.

Cold War service

Designed for the Pacific, Affray soon left to join the 4th Submarine Flotilla in Hong Kong, centered around the tender HMS Adamant (A164), and with her four sisters, HMS Amphion, Astute, Auriga, and Aurochs, replacing eight T-class boats that Adamant had been supporting since 1945.

By 1949, Affray and, along with the rest of her class, had received a 60-foot “Snort” device, based on captured late-war German snorkel designs, during regular overhauls back home.

The device overall proved successful. On 9 October 1947, Alliance dived off the Canary Islands to commence a 30-day “snort cruise,” covering 3,193 miles to Freetown, all while submerged. Andrew later made a 2,500nm run from Bermuda to the English Channel in 15 days.

Previously, British submarines could only spend a maximum of 48 hours submerged, and that was largely stationary.

However, Affray’s Snort reportedly leaked “like a sieve” during dives in the Med, and by January 195,1 the hard-used boat had been placed in reserve at Portsmouth, with the globe-trotter having logged more than 51,000nm in just her first five years of service.

Final Dive

Reactivated and under the command of experienced sub vet LT John Blackburn, DSC, in April 1951, Affray was detailed to participate in a detached simulated war exercise named “Training Spring.”

It would be a multi-day operation including “a war patrol, dummy attacks on shipping, combining with mock hostile aircraft attacks, Marine Commandos to be landed by cockle-type canoes for a simulated sabotage and enemy observation exercise, then re-embark.”

Instead of her regular crew, she had to land all but 24 experienced members while the boat was crowded with 24 ratings drawn from a new submarine class, a team of four Royal Marine Commando canoeists, and 22 members of a junior officer Executive and Engineering training class.

In all, 75 souls crammed into a boat built for 60~ with only about a third of them being “old salts.”

Affray had dived 30 miles South of the Isle of Wight, some 60 odd miles southwest of St Catherine’s Light, at 2115 on 16 April, and was due to transit to a position 20 miles southeast of Start Point. However, she failed to report her position on 17 April, and a SUBMISS/SUBSMASH alert stated search operations that eventually numbered over 50 ships, including 24 NATO warships.

These efforts continued fruitlessly until 19 April, with only an oil slick observed over Hurd’s Deep, by which point she was considered lost.

During the search, 161 sustained sonar contacts and as many as 70 uncharted wrecks, including another submarine, the 1944-lost U-269, were discovered, each requiring fruitlessly sending down a diver to verify if it was the lost Affray.

On 14 June, after two months, the frigate HMS Loch Fyne (K429) made the first contact with the wreck of Affray on her ASDIC equipment and sent the signal to the Admiralty in Whitehall.

The submarine rescue ship HMS Reclaim arrived on scene soon after and dropped a diver with a Siebe Gorman oxy-helium helmet to a depth of over 200 feet, who reported what could be a submarine below.

To confirm, Reclaim sent down her new underwater television apparatus on 16 June.

When it neared the bottom at 260 feet, the first grainy image of the wreck, including the word “Affray” on a conning tower, appeared topside on Reclaim’s TV screen.

There is no shortage of educated theories as to what happened to the submarine, the last British boat lost at sea. What is known is that her Snort mast was broken, and all hatches and hull seemed otherwise intact.

Hopefully, it was over quickly.

As noted by Submarinefamily.uk:

Her loss is still a matter of controversy, and the exact reason for her loss may never be known, as she is now protected as a grave for those who died in her. The most likely cause is that her snort mast broke off while she was at periscope depth and that the induction hull valve had failed to operate satisfactorily, resulting in water entering the submarine through a 10-inch hole. With her buoyancy destroyed, she would have sunk very quickly.

Epilogue

The 75 men lost on Affray have their names recorded in the Submariners’ Book of Remembrance in the chapel at HMS Dolphin, Gosport. Their names are also listed at the National Memorial Arboretum in Staffordshire, the Submarine Museum Memorial wall at Gosport, and Braye Harbour, Alderney, among others.

A dedicated website to H.M. Submarine Affray endures.

Of note, one of the divers from Reclaim working on Affray was LCDR Lionel “Buster” Crabb, OBE, GM, who later became famous when, in 1956, he disappeared in Portsmouth harbor during the visit of a Soviet cruiser with Khrushchev aboard.

The rest of Affray’s class had a happier and much longer service.

At least 10 of her sisters served at one time or another between 1954 and 1967 with the Royal Navy’s 6th Submarine Squadron out of HMC Dockyard, Halifax (stone frigate HMS Ambrose) as “clockwork mice” for ASW training with Canadian and NATO surface ships– with active service deployed North-East of the Grand Banks to warn if Soviet submarines were active during the Cuban Missile Crisis. Although not in RCN service, they typically had several “Canucks” as part of their crews, which helped the RCN’s transition to the trio of new Canadian Oberon-class submarines, which began entering service in 1965. The Submarine Room at the Naval Museum of Halifax contains many of their relics, including at least one ship’s bell from HMS Aurochs.

Fourteen received a further modernization akin to the American GUPPY conversions, which removed the old sail and replaced it with a more modern fairwater, as well as a streamlined hull profile. Although their four external tubes and the deck guns were removed, they could still carry 18 more modern Mark 8 Mod 4 torpedoes or 26 1,930-pound Mark V/type Q magnetic/acoustic mines. They also received new sonars (Types 186 long-range passive, 187 medium-range search/attack, and 197 intercept). The big Type 187 attack sonar required a large bulbous dome on the bow, giving the updated Amphions a similar profile to the 1960s Oberon class boats.

When they finished their refit, the GUPPY-fied Amphions received updated S-series hull numbers in place of their old P-series numbers.

Ironically, despite the original deck guns being removed during modernization in the late 1950s, a very non-streamlined replacement 4″/33 Mark XXIII S gun was installed starting in 1960 on several A boats to counter blockade-running junks during the Indonesian Confrontation with the Singapore-based 7th Submarine Squadron.

The class made appearances in several films, with Andrew filling in for a U.S. nuclear submarine in the 1959 post-apocalyptic film On the Beach.

Sistership Artemis appeared in an RN training film entitled Voyage North, from which stock submarine footage was lifted and reused in movies and TV shows for decades.

Aeneas, however, one-upped her sisters by appearing in the classic Bond film You Only Live Twice in 1967. She later went on to become an SSG, carrying an experimental mast-mounted SAM launcher. 

The last of the class in service, HMS Andrew, paid off in May 1977 and was also the final British sub to carry a deck gun.

HMS Alliance, although decommissioned in 1973, would continue to serve as a static training boat until 1979, and survives today.

Alliance has been preserved since 1981 as a museum boat at the Royal Navy Submarine Museum in Gosport, Portsmouth.

Among her relics is a replica wreath of daffodils, carnations, tulips, and lilies of the valley modeled after the one Alliance’s crew dropped over the resting place of Affray.

Meminisse est ad Vivificandum – To Remember is to Keep Alive

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