Tag Archives: HMS Affray

HMS Affray submarine memorial to be unveiled in Gosport

HMS Affray

HMS Affray sank off the coast of Alderney in an area known as the Hurd Deep

One of three surviving widows of 75 sailors who died in a submarine tragedy will unveil a new memorial later.

HMS Affray was on a training exercise off Alderney in the Channel Islands when it went missing in April 1951.

It was the last Royal Navy submarine to be lost at sea. It was found two months later 7.5 miles off the north west of Alderney at a depth of 280ft (85.3m).

Mary Henry, from Emsworth, whose husband Derek Foster died, is expected to attend a ceremony in Gosport later.

Another memorial to the tragedy was unveiled at Braye Harbour in Alderney last year.

HMS Affray left Portsmouth on 16 April, 1951 and submerged about 30 miles south of the Isle of Wight at 21:15 BST. It failed to resurface when it was due to at 08:30.

A search and rescue operation was launched, involving 26 ships and submarines along with available aircraft.

The Royal Navy’s official inquiry concluded HMS Affray sank because the snort mast, the tube through which the diesel engine “breathed” while the submarine was at periscope depth, snapped because of metal fatigue.

Source – BBC News

On this day 1951 – HMS Affray lost at sea

1951: Fears for crew of lost British submarine

The entire 75-strong crew of a British submarine is feared dead after going missing off the south coast of England.

The search goes on for the survivors of the Affray

The search goes on for the survivors of the Affray

The Affray left Portsmouth last night and submerged about 30 miles south of the Isle of Wight at 2115 BST (2015GMT).

She was due to resurface today at 0830 BST (0730GMT) off Start Point but no surfacing signal was received and her current position is not known.

The code word “subsmash” was sent out to set in place a search and rescue operation.

Search for survivors

Twenty-six ships and submarines from four countries – Britain, France, Belgium and the US – are involved and every available aircraft has joined the search.

All vessels have been asked to look out for survivors, wreckage or oil spills on the surface of the water.

As well as its normal crew of 61, on board, there were two classes of submarine officers under training and a small party of Royal Marines.

According to the Admiralty, they were on a practice war patrol between Portsmouth and Falmouth.

Chance of survival

A senior submarine officer said the crew could survive for up to three days in such a large submarine if they used special oxygen candles stored on board.

The Affray is an A-class submarine designed for service in the Pacific. She was built in 1946 by Cammell Laird and belongs to the 5th Submarine Flotilla.

In January last year, HM Submarine Truculent sank in the Thames Estuary after colliding with another vessel leading to the death of 64 seamen.

Two months later, the Affray was found in 300ft of water 46 miles south of Portland.

It was the worst British submarine accident since the World War II.

The submarine was never recovered because of the depth at which it had sunk and the distance from the coast made a full salvage operation impossible.

A three-month investigation was carried out from the salvage vessel Reclaim using remote-control TV cameras.

The Royal Navy concluded HMS Affray sunk because the snort mast – the tube through which the diesel engine “breathed” while steaming at periscope depth – snapped because of metal fatigue.

This would have let water flood through the tube’s aperture.

Another theory was that a battery had  exploded.