This is the information page about the shipwreck Hmsm a7, the water chart below shows the wreck in its immediate vicinity. The position of this wreck is 50 18.525 N,4 18.007 W (50.1442, -4.17415)

 

Open the Water Map of this area in a full window
 

The texts accompanying this shipwreck are in English 🇬🇧, as they are prepared by the UK Hydrographic Office (UKHO) based on data from UKHO and the hydrographic services of the Netherlands, Belgium and Germany, among others. They include the known details of the wreck and the comments of the cartographers who have checked the position and condition of the wreck over time.

 

1. Afric
2. Anna
3. Arandora star
4. August conseil (possibly)
5. Australbush (possibly)
6. Bell virtue
7. Birgitte
8. Brialan
9. Carol anne
10. Chancellor
11. Charlwood
12. Chelydra (possibly)
13. City of antwerp
14. Constance
15. Dartmeet
16. Die frau metta catharina von flensburg
17. Dutton
18. East point
19. Encourage
20. Exploiter
21. Fylrix
22. Glen strathallan
23. Hazel claire (possibly)
24. Heron i
25. Hms abelard
26. Hms coronation (part)
27. Hms coronation (part)
28. Hms elk (probably)
29. Hms foyle
30. Hms kingston alalite (probably)
31. Hms lord stonehaven
32. Hms scylla
33. Hms ullswater
34. Hmsm a7
35. Hmsm h 52
36. Hmsm untiring
37. Hopper barge no.42
38. James eagan layne
39. Kazan
40. Kishmul of ayr
41. Lab
42. Lancaster
43. Lauwerzee
44. Marie
45. Mcgregor
46. Medoc
47. Orchis
48. Phoenix
49. Poulmic
50. Reine des flots
51. Rosehill
52. Sabrina
53. Solstice ph199
54. St katharine (probably)
55. Tinker di
56. Unicorn
57. W woolvern (possibly)
58. Western coast (possibly)
59. Yewforest

 

Name: HMSM A7

Length 30.2 meter, width: 4 meter, tonnage 207 ton

Cause: failed to surface during an exercise off rame head.

Year of registration: 1914

Water depth above wreck: 36 meter, Height above seabed: 110 cm

Known since: 1914, last detected: 2020

Details measurements/cartography: H4267/70 8.9.72 A7 IN 501810N, 041800W [OGB] USING DECCA. A FASTENER. ORIGINALLY REPORTED TO BE LYING ANGLED UPWARD 30-40DEGS WITH STERN BURIED IN MUD UP TO 22FT WITH BOW 33FT OFF BOTTOM. ATTEMPTS TO PULL HER OUT IN 1914 WITH BATTLESHIP [?TUG] 'EXMOUTH' FAILED. WK PROBABLY SETTLED BY NOW. (MR CALKIN, 1.9.72). CHART AS WK 26FMS. BR STD. H4979/72 2.1.73 WK IN 501830N, 041758W [OGB] USING HSA. LEAST DEPTH 34.0MTRS IN 37.0MTRS. NO SCOUR. OUTSIDE SURVEY AREA BUT LOCATED FROM INFORMATION SUPPLIED BY MR CALKIN. GOOD SONAR CONTACT FROM S BUT DIFFICULT TO FIND WITH E/S. SEEMS VERY SMALL FROM E/S TRACE. (HMS WOODLARK, 1972). CHART AS WK 34MTRS. NC 1267. H4979/72 3.7.80 WK LOCATED 5.6.80 IN 501822N, 041751E [OGB] USING DECCA. LEAST E/S DEPTH 33 IN 36MTRS. DCS3 HT 3MTRS. (HMS FAWN, EXERCISE BROWN HERON,). NCA. H1961/79 18.3.81 EXAM'D 31.3.80 IN 501829.2N, 041755.4W [OGB] USING TRISPONDER [2 LOP]. LEAST E/S DEPTH 33.4 IN GEN DEPTH 37MTRS. DCS3 HT 2.72MTRS. SCOUR 1MTR DEEP. LIES 080/260DEGS ON GREY CLAY. POOR E/S RETURN. (HMS WOODLARK, HI 71A/80). CHART AS WK 33 MTRS. BR STD. 16.9.85 DIVED ON BY PLYMOUTH CDT. CONFIRMED AS WK OF A7. STILL IN VERY GOOD CONDITION. LIES UPRIGHT, BURIED IN MUD UP TO WHAT WOULD NORMALLY HAVE BEEN ITS WATERLINE. (LT NUTT, TELECON). NCA. 10.11.89 DIVED ON BY EXETER BSAC IN 501821N, 041752W [OGB]. CONNING TOWER AND PERISCOPE INTACT. (E THOMAS, TELECON). NCA. HH100/351/07 15.7.93 DIVED 19.4.92 IN 501833N, 041800W [OGB] USING DECCA. LEAST DEPTH OBTAINED 39MTRS [DIVER AT LW NEAPS]. LARGELY BURIED IN MUD, DECK CASING STANDS ONLY 1MTR CLEAR OF SEABED. CONNING TOWER AND PERISCOPE STAND 2-3MTRS CLEAR. (G PEACHAM, 30.6.93). NCA. HH100/351/13 26.2.98 WK IS INTACT AND LYING ON AN EVEN KEEL. IN THE MUD UP TO HER SURFACE MARKS. PERISCOPE EXTENDED. TORPEDO LOADING HATCH AND CONNING TOWER HATCH STILL CLOSED. SMALL HOLE ON HER STBD SIDE WHERE A TORCH CAN BE SHONE IN. LIES E/W. STANDS 3MTRS HIGH BY DIVE COMPUTER. (P F BALL, 23.2.98). NCA. HH232/450/06 27.9.02 DESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 200MTRS CENTRED ON 5018.518N, 0417.984W [WGD]. (STATUTORY INSTRUMENT 1761/02).

- NM 5208/02 & NM 5291/03. HH232/450/08 7.4.06 EXAM'D 4.4.06 IN 5018.5271N, 0418.0082W [WGD]. SWEPT CLEAR 31.3, FOUL 31.8MTRS. LEAST M/B DEPTH 30.93MTRS. (HMS ECHO, SIGNAL DTD 4.4.06). AMEND SW 31MTRS IN REVISED POSN.

- NM 2194/06. HH232/450/08 27.4.06 LEAST M/B DEPTH 30.58 IN GEN DEPTH 35.5MTRS. INTACT WITH LITTLE DEBRIS AND NO SCOUR. LIES 135/315 DEGS. (HMS ECHO, ROS). NCA. SEP 2006/000394419 30.10.06 STATUTORY INSTRUMENT 1761/02 CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 200MTRS CENTRED ON 5018.518N, 0417.984W [WGD]. (STATUTORY INSTRUMENT 2616/06). NCA. 28.4.08 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 200MTRS CENTRED ON 5018.518N, 0417.984W [WGD]. (STATUTORY INSTRUMENT 950/08). 1.2.10 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 200MTRS CENTRED ON 5018.518N, 0417.984W [WGD]. (STATUTORY INSTRUMENT 3380/09). 16.6.17 PREVIOUS SI CANCELLED. REDESIGNATED AS PROTECTED MILITARY WRECK WITH RESTRICTED AREA RADIUS 200MTRS CENTRED ON 5018.518N, 0417.984W [WGD]. (STATUTORY INSTRUMENT 147/2017). SEP 2020/000287353 25.11.20 WRECK EXAMINED 26.4.20 IN POSITION 5018.525N, 0418.007W [WGD], LEAST M/B DEPTH 30.14 MTRS IN GENERAL DEPTH 36 MTRS, LENGTH 23 MTRS, WIDTH 4 MTRS, HEIGHT 5.9 MTRS, ORIENTATION 110 DEGS. (HI1678, CLINTON MARINE SURVEY LTD). AMEND DW 30 MTRS IN REVISED POSN.
Comment researcher: UK Hydrographic Office

Commentaar onderzoeker: INTACT AND LYING ON AN EVEN KEEL

Position: 50 18.525 N,4 18.007 W

 

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