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 (51.398883333333, 2.4536166666667)

 

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 10 (possibly)
2. A-15 (possibly)
3. Alfonso tercero
4. Aloha
5. Anton hammerbacher
6. Apache
7. Ardmount
8. Auretta
9. Birkenfels
10. Bourrasque
11. Bowsprite (bow section)
12. Bowsprite (bow section)
13. Bramden (possibly)
14. Breda
15. Callisto
16. Cmb 1
17. Copenhagen (possibly)
18. Croxteth hall
19. Dageraad
20. Dawdon
21. Dortmund
22. Emeraude
23. Empire path
24. Fl5
25. G 96
26. Gold shell
27. Harpalyce
28. Heinkel 111
29. Hm motor launch 561
30. Hms brilliant
31. Hms colsay
32. Hms gracie fields
33. Hms grafton
34. Hms grafton
35. Hms hayburn wyke
36. Hms plumpton (probably)
37. Hms sirius
38. Hms st achilleus (possibly)
39. Hms wakeful
40. Hms waverley
41. Hoop op vrede (n 741)
42. John mahn
43. Kap arkona
44. Katie h
45. Keulse vaart iv
46. Kilmore
47. Laura
48. Lct(r) 457
49. Lst 420 (bow section)
50. Lst 420 (stern section)
51. Lucy jenny ii
52. M 3610
53. Marie
54. Mariner (possibly)
55. Maurice
56. Medee
57. Mont louis
58. Msc alyssa
59. Mts vector
60. Nashaba
61. Nautica ena
62. Normandie
63. P 319
64. Ptarmigan
65. Putten
66. Queen of the channel (possibly)
67. Quo vadis
68. Ra.2 (possibly)
69. Rijnstroom
70. Rita
71. Robert l vann
72. S 168
73. S 220
74. S.192 (possibly)
75. Sabrina
76. Saint therese de jesus
77. Sampa
78. Sea hunter
79. Senator holthusen
80. Senator sthamer
81. Sigurds faulbaums
82. Sperrbrecher 170 (probably)
83. Sperrbrecker no 141 (probably)
84. Torpilleur branlebas
85. Tringa
86. U 11
87. Ub 13
88. Ub29
89. Uc 1
90. West-hinder
91. Wielingen ii (possibly)
92. 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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