Hmsm Seahorse (Possibly) Wreck
| Field | Value |
|---|---|
| Wreck Category | dangerous wreck |
|
Hmsm seahorse (possibly) Wreck Location Marine Coordinates (DMM) |
54 19.718 N,7 35.697 E |
| Latitude, Longitude Decimal Degrees |
|
| Wreck Depth | 23.5 m |
| Water Depth | 28 m |
| Water Level Effect | always under water/submerged |
| Vertical Datum | Lowest Astronomical Tide |
| Name | HMSM SEAHORSE (POSSIBLY) |
| Type | submarine |
| Flag | GB |
| Length | 61.3 m |
| Width | 7.3 m |
| Draught | 3.4 |
| Tonnage | 640 |
| Tonnage Type | displacement |
| Conspic Visual | not visually conspicuous |
| Conspic Radar | not radar conspicuous |
| Date Sunk | Jan 7, 1940 |
| Bottom Texture | Sand |
| Original Detection Year | 1973 |
| Last Detection Year | 2019 |
| Original Source | national HO/authority notice to mariners |
| Surveying Details | H3734/69 21.9.73 WK SW 25MTRS [13FMS 4FT] IN 541946N, 073550E [EUR]. (HAMBURG NM 3074/73). REFERRED TO AS THE WK OF A SUBMARINE. BR STD. HH100/351/04 7.10.91 WK OF UNKNOWN SUBMARINE IN 541946N, 073550E [EUR]. (DHI HAMBURG, 7.8.90). HH328/610/01 21.7.93 WK SW 25.8MTRS IN 541947N, 073544E [EUR]. (HAMBURG NM (21)50/26/93). BR STD. 22.2.94 SHOWN ON GERMAN 50 [REPRINT CORRECT TO 17.12.93]. NCA. 8.2.06 SHOWN AS WK SW 25.8MTRS IN 5419.737N, 0735.649E [WGD] ON GERMAN 103 [INT 1412] [AUG '05 EDN, LARGEST SCALE ADOPTION]. NE 3767. SEP 2011/000162785 5.9.11 NOW SW 24.1MTRS [MLWS]. (GERMAN NM 34/87/11). - NM 4344/11. 11.1.12 SHOWN AS SW 24.5MTRS [LAT] ON GERMAN 103 [EDN DTD 9.2011]. NE 3767. 4.6.15 SHOWN AS SW 23.5MTRS [LAT] IN 5419.718N, 0735.697E [WGD] ON GERMAN 103 [ED9 DTD 27.3.15]. AMEND TO SW 23.5MTRS. |
| Last Amended Date | Apr 4, 2019 |
Circumstances of loss
SCUTTLED AFTER SEVERE DAMAGE. DEPTH CHARGED UNITS OF GERMAN 1ST MINESWEEPER FLOTILLA WHILE ON PATROL IN HELIGOLAND BIGHT. ORIGINALLY THOUGHT TO HAVE STRUCK A MINE BUT GERMAN RECORDS SHOW THAT IT WAS PROBABLY SUNK BY THE 1ST MINESWEEPER FLOTILLA. THE FLOTILLA ATTACKED A SUBMARINE IN 501900N, 073000E. ENGINE NOISE CEASED AFTER 18 DEPTH CHARGES WERE DROPPED. HEAVY SEAS MEANT NO OIL OR WRECKAGE COULD BE SITED. (LT JOHN W FLEMING).
Nearby Wrecks:
- Other Wreck 86395 807.7 M
- Other Wreck 62494 929.3 M
- Other Wreck 86170 1294.8 M
- Sudriff Wreck 6958 M
- Flipper Ii Wreck 7578 M
- Other Wreck 9356 9154 M
- Hmsm E 10 Wreck 9288.7 M
- Other Wreck 52759 10801.9 M
- Fishing Vessel Wreck 9337 11080 M
- Other Wreck 9338 12517.7 M