Hmsm Affray Wreck

Field Value
Wreck Category non-dangerous wreck
Status historic
Hmsm affray Wreck Location
Marine Coordinates (DMM)
49 50.023 N,2 34.533 W
Latitude, Longitude
Decimal Degrees
  • Latitude: 49.833717
  • Longitude: -2.575550
Wreck Depth 69 m
Water Depth 79 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name HMSM AFFRAY
Type submarine
Flag GB
Length 85.3 m
Width 6.7 m
Draught 5.2
Sonar Length 80
Sonar Width 7
Shadow Height 9
Orientation 65
Tonnage 1120
Tonnage Type displacement
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Apr 17, 1951
Scour Dimensions ,,000.5,
Original Detection Year 1951
Last Detection Year 2008
Original Source unknown
Surveying Details H03504/51 17.6.51 LOCATED IN 494954N, 023412W. BUOYS LAID NEARBY. (AUTHORITY NOT STATED). H3504/51 13.9.51 INS AS NDW. BR STD. H03504/51 9.11.51 SALVAGE OPERATIONS TAKING PLACE FROM TIME TO TIME. LIGHT BUOYS LAID. - NM 2098(T)/51. H03504/51 13.2.52 SALVAGE OPERATIONS ENDED. BUOYS WITHDRAWN. - NM 317/52 ISSUED TO CANCEL TNM 2098/51. H3504/51 11.3.60 POSN 494954N, 023412W. SALVAGE OPS CONDUCTED BETWEEN 6.1951 AND 2.1952. (C-IN-C PORTSMOUTH). 12.2.80 SHOWN AS NDW PA ON FRENCH 878 [DEC 1979 EDN]. 2.12.81 AMENDED TO USC 35FMS. NE 2668 & 2669. 23.3.82 AMENDED TO USC 64MTRS. NC 2656. H3635/71 30.6.88 NOW WK 72MTRS IN 495012N, 023442W [EUR]. (FRENCH NM 88 20 40). AMEND TO WK 72MTRS IN REVISED POSN. BR STD. HH090/496/01 12.10.90 EXAM'D 9.8.90 IN 495001.4N, 023432.0W [WGD] USING HYPERFIX. LEAST E/S DEPTH 69.3 IN GEN DEPTH 69MTRS. SCOUR 0.5MTR DEEP. DCS3 HT 9MTRS. LENGTH 80MTRS, WIDTH 7MTRS. LIES 065/245DEGS WITH BOW W AND APPARENTLY A 20DEGS LIST TO PORT. (NP 1008, HI 496). AMEND TO WK 69MTRS IN REVISED POSN. BR STD. HH226/410/06 27.9.02 DESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 400MTRS CENTRED ON 4950.023N, 0234.533W [WGD]. (STATUTORY INSTRUMENT 1761/02). - NM 5209/02. SEP 2006/000394419 30.10.06 STATUTORY INSTRUMENT 1761/02 CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 400MTRS CENTRED ON 4950.023N, 0234.533W [WGD]. (STATUTORY INSTRUMENT 2616/06). NCA. 28.4.08 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 400MTRS CENTRED ON 4950.023N, 0234.533W [WGD]. (STATUTORY INSTRUMENT 950/08). NCA. 1.2.10 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 400MTRS CENTRED ON 4950.023N, 0234.533W [WGD]. (STATUTORY INSTRUMENT 3380/09). NCA. 16.6.17 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 400MTRS CENTRED ON 4950.023N, 0234.533W [WGD]. (STATUTORY INSTRUMENT 147/2017).
Last Amended Date Nov 21, 2019

Circumstances of loss

14.6.51 SANK WHILE ON SUBMERGED PASSAGE WEST THROUGH THE ENGLISH CHANNEL. WK WAS NOT LOCATED UNTIL 14.6.51 AND EXAMINATION FOUND THAT THE SNORT-MAST HAD BROKEN OFF ABOUT 3FT ABOVE DECK - POSSIBLY DUE TO METAL FATIGUE AND/OR POOR WELDING. THIS, COMBINED WITH POSSIBLE FAILURE OF AN AUTOMATIC INDUCTION VALVE WHERE MAST JOINED THE HULL, WAS PROBABLY THE CAUSE OF SINKING. (BENEATH THE WAVES - A S EVANS).

General Comments

INTACT, BOW W. LIST OF 20DEGS TO PORT

WRECK MAP LOADING ... 49 50.023 N,2 34.533 W
Hmsm Affray on Wreck Map Hmsm Affray Wreck on Google Map

Nearby Wrecks:

FAQ

Where is the HMSM AFFRAY wreck located?

The HMSM AFFRAY wreck is located at coordinates 49 50.023 N,2 34.533 W.

How deep is the HMSM AFFRAY and where exactly is it located?

The HMSM AFFRAY lies at a depth of about 69 meters and is located at coordinates 49 50.023 N,2 34.533 W.

How deep is the seabed around the HMSM AFFRAY?

The seabed around the HMSM AFFRAY lies at approximately 79 meters deep.

When did the HMSM AFFRAY sink?

The HMSM AFFRAY sank on Apr 17, 1951.

When was the wreck of the HMSM AFFRAY discovered?

The wreck of the HMSM AFFRAY was discovered in 1951.

What country did the HMSM AFFRAY belong to?

The HMSM AFFRAY belonged to GB.

What was the tonnage of the HMSM AFFRAY?

The HMSM AFFRAY had a tonnage of 1120 tons.

What type of wreck is the HMSM AFFRAY?

The HMSM AFFRAY is classified as a submarine.