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 |
|
| 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 BUOYS WITHDRAWN.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).
Nearby Wrecks:
- Steam Ship Wreck 54957 3103.4 M
- Other Wreck 54932 3482.7 M
- Klein Famile Wreck 4081.5 M
- Bombardon Wreck 56870 6061.5 M
- Grace (Possibly) Wreck 7527.7 M
- Other Wreck 54924 8319 M
- Other Wreck 54247 8623.8 M
- Maud Pierre Andre (Possibly) Wreck 9340.1 M
- Regina Coeli (Possibly) Wreck 9637.6 M
- Sailing Vessel Wreck 67898 9673.8 M
General Comments
INTACT, BOW W. LIST OF 20DEGS TO PORT