This is the information page about the shipwreck John mahn, the water chart below shows the wreck in its immediate vicinity. The position of this wreck is 51 28.934 N,2 41.355 E (51.3988833, 2.4536167)

 

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. A-15 (possibly)
2. Alfonso tercero
3. Apache
4. Ardmount
5. Auretta
6. Birkenfels
7. Bourrasque
8. Bowsprite (bow section)
9. Bramden (possibly)
10. Breda
11. Callisto
12. Cmb 1
13. Copenhagen (possibly)
14. Dawdon
15. Dortmund
16. Emeraude
17. Empire path
18. Fl5
19. G 96
20. Harpalyce
21. Heinkel 111
22. Hm motor launch 561
23. Hms brilliant
24. Hms colsay
25. Hms gracie fields
26. Hms grafton
27. Hms grafton
28. Hms plumpton (probably)
29. Hms sirius
30. Hms st achilleus (possibly)
31. Hms wakeful
32. Hms waverley
33. John mahn
34. Katie h
35. Keulse vaart iv
36. Kilmore
37. Laura
38. Lct(r) 457
39. Lst 420 (stern section)
40. M 3610
41. Marie
42. Mariner (possibly)
43. Maurice
44. Medee
45. Mont louis
46. Nashaba
47. Nautica ena
48. Normandie
49. P 319
50. Ptarmigan
51. Putten
52. Queen of the channel (possibly)
53. Quo vadis
54. Ra.2 (possibly)
55. Rijnstroom
56. Rita
57. Robert l vann
58. S 168
59. Sabrina
60. Sampa
61. Senator holthusen
62. Sigurds faulbaums
63. Sperrbrecker no 141 (probably)
64. Torpilleur branlebas
65. Tringa
66. U 11
67. Ub 13
68. Ub 29
69. Ub29
70. Uc 1
71. West-hinder
72. Wielingen ii (possibly)
73. Wielingen ltv

 

Name: JOHN MAHN

Length 45.1 meter, tonnage 292 ton

Cause: Attacked and sunk by aircraft. (d. termote)

Year of registration: 1963

Water depth above wreck: 27 meter, Height above seabed: 90 cm

Known since: 1963, last detected: 2018

Details measurements/cartography: H3765/47 22.10.63 WK, LEAST DEPTH 18.8MTRS, IN 512855N, 024141E. (HAGUE NM 3035/63)

- NM 2170/63. H2945/73 12.6.73 NOT FOUND BUT POSN ON VERY EDGE OF CABLE ROUTE SURVEY. SEARCH CONDUCTED USING SIDE SCAN SONAR. (GPO MARINE BRANCH, K6615/4 & 8) NCA. 27.10.76 OBSTN SHOWN IN 512853N, 024125E [OSGB], FIXED BY DECCA, ON KINGFISHER KE 151-2 [JUL'68 EDN]. H1271/84 20.8.85 ARMED TRAWLER IDENTIFIED BY SHIP'S BELL AS JOHN MAHN. THOUGHT TO BE GERMAN WW2 ERA FROM GERMAN HELMET FOUND. LYING E/W ON SANDY SEABED, 025DEG STARBOARD LIST, LENGTH ABOUT 150FT. MUCH AMMUNITION AROUND WK & DEPTH CHARGES AT STERN. POSN 512856N, 024119E USING SHIPMATE DECCA 2E. (DIVER MR R A BELL, USING VESSEL PHILIPPE COUSTEAU, TELECON) R/P. H2945/73 16.6.86 LYING INTACT, EXCEPT FOR BRIDGE WHICH LIES ALONGSIDE. HEAVY GUN IS MOUNTED ON BOW. DEPTH CHARGES, OR MINES, ARE ON STERN. (D. TERMOTE, 4.5.86) NCA. H3069/86 13.3.87 LEAST DEPTH NOW 21.5MTRS IN 512900N, 024124E. (NETHERLANDS NM 69/87)

- NM 986/87. H2731/85 23.12.87 NOW SWEPT CLEAR AT 21.2MTRS IN 512859N, 024125E. (OSTEND NM 155/87)

- NM 304/88. 12.12.02 SHOWN AS WK SW 21.0MTRS IN 5128.934N, 0241.355E [WGD] ON BELGIAN 101 [INT 1474] [2002 EDN, ADOPTION]. NE 1874. 3.6.13 SHOWN AS SW 20.9MTRS IN 5128.934N, 0241.355E [WGD] ON BA 1874 [EDN 9 DTD 11.10.12].
Comment researcher: UK Hydrographic Office

Position: 51 28.934 N,2 41.355 E

 

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