Hms Sisapon Wreck
| Field | Value |
|---|---|
|
Hms sisapon Wreck Location Marine Coordinates (DMM) |
51 56.377 N,1 23.619 E |
| Latitude, Longitude Decimal Degrees |
|
| Wreck Depth | 6.4 m |
| Water Depth | 7 m |
| Water Level Effect | always under water/submerged |
| Vertical Datum | Approximate Lowest Astronomical Tide |
| Name | HMS SISAPON |
| Type | trawler |
| Flag | GB |
| Length | 41.8 m |
| Width | 7.2 m |
| Draught | 3.8 |
| Tonnage | 326 |
| Tonnage Type | gross |
| Conspic Visual | not visually conspicuous |
| Conspic Radar | not radar conspicuous |
| Date Sunk | Jun 12, 1940 |
| Original Detection Year | 1940 |
| Last Detection Year | 2015 |
| Original Source | other |
| Surveying Details | H0548/40 31.7.40 DW IN 118.5DEG 1.72M FROM FR LT ON SEAWARD END OF FELIXSTOWE PIER. (ADMIRALTY). - NM 1889/40. H0579/40 1.7.44 LEAST DEPTH OVER WK 1FM 3FT IN 515620N, 012347E. (ADMIRALTY). - NM 1403/44. H0579/40 22.9.44 LEAST DEPTH OVER WK 3FMS 1FT. (ADMIRALTY). - NM 2040/44. H0579/40 19.7.51 WK 2FMS 4FT IN POSN 122DEG 1.95M FROM FELIXSTOWE PIER LT OR 515720N, 012105E. MARKED BY G CON BUOY CLOSE N. (HMS SHARPSHOOTER). - NM 1330/51. H0579/40 24.6.53 POSN NOW STATED TO BE FOUL, LEAST DEPTH 2FMS 4FT. (BD & SOI). AMEND TO FOUL 2FMS 4FT. - NM 1520/53. H0579/40 10.9.53 G CON BUOY IN 515619N, 012351E REMOVED. (TH). - NM 2040/53. H0579/40 26.9.58 WRECK CONFIRMED. (ECES, 30.6.58). H0579/49 8.4.59 EXAM'D 30.6.58. SWEPT CLEAR 15FT, FOUL 16FT. LEAST E/S DEPTH 22FT IN GEN DEPTH 22-23FT. SCOUR 27FT. SEABED SAND. (SML 3516, ECES 29.7.58). H0579/49 8.4.59 SWEPT CLEAR 16FT, FOUL 17FT. LEAST E/S DEPTH 21FT. SCOUR 30FT. (HMS SHARPSHOOTER, 16.5.51). H2134/70 25.2.70 EXAM'D 29.5.69 IN 515619N, 012348E [OGB] USING HIFIX AND HSA. LEAST E/S DEPTH 6.5 IN GEN DEPTH 7-7.2MTRS. SCOUR 8.4MTRS. (HMS ECHO, 5.8.69). RETAIN AS FOUL 2FMS 4FT. NCA. 18.1.72 AMENDED TO FOUL 4.9MTRS. NC 2693. H3186/73 11.5.73 LOCATED IN 515620N, 012349E [OGB] USING HIFIX/6 [2 LOP]. SMALL SCATTERED CONTACTS ON SONAR DISPLAY. DIVERS REPORT MANY SMALL STRIPS OF METAL LYING ON SEABED. NO SOLID WRECKAGE. AREA SEARCHED ABOUT 10YDS RADIUS. (HMS NURTON (WITH ISS), 30.3.73). NCA. H4358/74 11.2.76 LOCATED IN 515620N, 012349E [OGB] USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 6.5MTRS IN GEN DEPTH 7.2MTRS. SCOUR 8.4MTRS. (HMS ECHO, HI 12/75). BR STD. H3145/72 7.10.76 DEPTH OF 4.9MTRS, WITH SCOUR CLOSE W OF 8.6MTRS, SHOWN IN POSN OF WK ON HARWICH HARBOUR CONSERVANCY BOARD SURVEY DTD 17/18 AUG 76 [K7244]. - NM 2300/76. H4358/74 14.7.78 ESTABLISHED DEPTH SHOWN ON HARWICH HBR CONSERVANCY SURVEY OF 1976 WAS TAKEN FROM OLD ADMIRATY CHART. ACCEPT ECHO 1969 SURVEY LEAST DEPTH. (SINNOTT, TELECON 14.7.78). H4726/77 19.3.79 LOCATED IN 515619N, 012349E [OGB] USING HIFIX/6 [2 LOP]. LEAST E/S DEPTH 7.6MTRS IN GEN DEPTH 7-8MTRS. NOT FULLY SURVEYED. (HMS ENTERPRISE, ROS DTD 4.12.78). NCA. H1270/77 26.10.81 SHOWN AS SW 6.5MTRS ON K8732. BR STD. SEP 2015/000049129 13.3.15 NOT LOCATED IN LISTED POSN. DEBRIS LOCATED IN 5156.377N, 0123.619E [WGD]. LEAST M/B DEPTH 6.4MTRS. RECOMMEND AMEND OBSTN 6.4MTRS. . (I WEBSTER, HHA PORT SURVEYOR, EMAIL DTD 25.2.15). AMEND OBSTN 6.4MTRS IN REVISED POSN. |
| Last Amended Date | Mar 16, 2015 |
Circumstances of loss
BUILT IN 1928 BY COOK, WELTON & GEMMEL, BEVERLEY. ONE BOILER, TRIPLE EXPANSION ENGINE OF 92NHP, SINGLE SHAFT. MACHINERY BY AMOS, SMITH LTD, HULL. HIRED AS MINSWEEPER 6.1939. FOUNDERED. (SIBI). MINED. (WW2SL & COLLEDGE).
WRECK MAP LOADING ...
51 56.377 N,1 23.619 E
Hms Sisapon on Wreck Map
Hms Sisapon Wreck on Google Map
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