Hms Marconi Wreck

Field Value
Wreck Category dangerous wreck
Hms marconi Wreck Location
Marine Coordinates (DMM) 		51 54.864 N,1 30.26 E
Latitude, Longitude
Decimal Degrees
  • Latitude: 51.914400
  • Longitude: 1.504333
Wreck Depth 7.6 m
Water Depth 8 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name HMS MARCONI
Type trawler
Flag GB
Length 41.5 m
Width 7.3 m
Draught 3.9
Sonar Length 85
Sonar Width 50
Shadow Height 1.4
Orientation 40
Tonnage 322
Tonnage Type gross
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Sep 20, 1941
Scour Dimensions ,,002.5,
Original Detection Year 1941
Last Detection Year 1987
Original Source national HO/authority notice to mariners
Surveying Details H03280/41 17.10.41 INS DW WITH A G CAN BUOY GP FL(2)G 10 SEC CLOSE NW. - NM 2445/41 & FNM 2447/41. H03280/41 25.11.41 AMEND POSN. - NM 2793/41. H3280/41 18.9.43 AMEND TO WK 4FMS WITH A G CAN BUOY GP FL(2) G CLOSE NW. - NM 1977/43. H0393/42 30.10.43 DELETE BUOY. - NM 2339/43. H03280/41 19.12.50 AMEND TO WK 3FMS 1FT WITH A G CON BUOY GP FL 3G 10SEC. (TH). - NM 2460/50. H03280/41 30.10.51 WIRE DRIFT SWEEP BY SMLS 325 AND 323 17.9.51. CLEAR AT 22, FOUL AT 23FT. LEAST E/S DEPTH 25 IN GEN DEPTH 27FT. SCOUR DEPTH 42FT. SCOUR LIES 232 DEG, 710FT FROM WK BUOY. (HMS SHARPSHOOTER, 26.10.51). AMEND TO WK 3FMS 4FT. - NM 186/52. H03280/41 19.1.53 DELETE BUOY. (TH). - NM 125/53. H1144/65 3.8.65 LEAST E/S DEPTH 23 IN 27FT. MODERATE A/S CONTACT. POSN 515446N, 013030E. (HMS ECHO, 29.10.64). H2134/70 24.2.70 EXAM'D 13.6.69 IN 515447N, 013029E [OGB] USING HIFIX [2 LOP]. SWEPT CLEAR 7.2, FOUL 7.6MTRS. GEN DEPTH 8.9MTRS. SCOUR DEPTH 9.8MTRS. POOR SONAR CONTACT. (HMS ENTERPRISE). AMEND TO SW 4FMS (SW 3FMS 5FT LAT). BR STD. H3186/73 8.5.73 EXAM'D IN 515448N, 013030E [OGB] USING HIFIX [2 LOP]. LEAST E/S DEPTH 7.1 IN GEN DEPTH 10.8MTRS. SCOUR DEPTH 9.4MTRS. (HMS ENTERPRISE). H4358/74 11.2.76 EXAM'D IN 515448N, 013030E [OGB] USING HIFIX [2 LOP]. LEAST E/S DEPTH 6.8 IN GEN DEPTH 8.5MTRS (HEAVY SEA RUNNING). NO SCOUR. LIES 065/245 DEG. LENGTH APPROX 50MTRS. NOT FULLY SURVEYED. (HMS ECHO, HI 12/75). AMEND TO WK 6.8MTRS. - NM 471/76 H4726/77 16.3.79 LOCATED IN 515448N, 013028E [OGB] USING HIFIX. LEAST E/S DEPTH 7.5 IN GEN DEPTH 8MTRS. SCOUR 8.9MTRS. INVESTIGATION RATHER INCONCLUSIVE. VICINITY OF WK DOMINATED BY SANDWAVE ORIENTATED NW/SE AND IT IS PROBABLE LEAST DEPTH OBTAINED WAS OVER THIS RATHER THAN THE WK. (HMS ENTERPRISE, HI 60B/78). NCA. H2007/81 16.2.81 EXAM'D 26.11.80 IN 515446N, 013026E [OGB] USING HIFIX [2 LOP]. SWEPT CLEAR 7.6, FOUL AT 7.8MTRS. LEAST E/S DEPTH 7.6 IN GEN DEPTH 8.5MTRS. LYING NW/SE ON TOP OF A BANK AND IS ENCOMPASSED BY A RIDGE 0.5MTRS HIGH TO THE N. ABOUT 27MTRS LONG. HEAVILY SILTED. (HMS ECHO, HI 68B/80). AMEND TO SW 7.6MTRS. BR STD. H1955/80 25.3.82 EXAM'D 17.11.81 IN 515450N, 013024E [OGB] USING HIFIX [2 LOP]. SWEPT CLEAR AT 7.5, FOUL AT 7.8MTRS. LEAST E/S DEPTH 8.8 IN GEN DEPTH 8-9MTRS. SCOUR 1MTR, DCS3 HT 2MTRS. LYING 040/220DEGS. LENGTH 33MTRS, BREADTH 10MTRS APPROX. (SOISS, HI 25). NCA. H2913/83 18.10.84 NOT LOCATED. NO SPECIAL SEARCH MADE. (HMS ECHO, HI 192). NCA. H4024/86 17.2.88 EXAM'D 4.9.87 IN 515450N, 013023E [OGB] USING TRISPONDER [4 LOP]. LEAST E/S DEPTH 7.6 IN GEN DEPTH 8MTRS. SCOUR DEPTH 10.5MTR. DCS3 HT 1.4MTRS (?). GROUP OF SMALL SONAR CONTACTS OVER AREA SOME 85 X 50MTRS WITH NO SPECIFIC ORIENTATION. LIES ON W EDGE OF BANK WHICH HAS LEAST DEPTH 7.3MTRS. ANOTHER 200MTRS SE HAS DEPTH 6.9MTRS. MAG ANOMALY INDICATES IRON CONTENT OF MAX OF 11 TONNES. (NP 1016, HI 373). RETAIN AS SW 7.6MTRS IN REVISED POSN. BR STD.
Last Amended Date Mar 13, 2003

Circumstances of loss

BUILT IN 1916 BY COCHRANE & SONS. SELBY. ONE BOILER, TRIPLE EXPANSION ENGINE OF 86HP, SINGLE SHAFT. HIRED AS MINESWEEPER 1917-1919 AND AGAIN FROM 3.1940. SANK FOLLOWING A COLLISION. (SIBI & WW2SL).

General Comments

AREA OF SMALL SONAR CONTACTS, WRECKAGE

WRECK MAP LOADING ... 51 54.864 N,1 30.26 E
Hms Marconi on Wreck Map Hms Marconi Wreck on Google Map

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FAQ

Where is the HMS MARCONI wreck located?

The HMS MARCONI wreck is located at coordinates 51 54.864 N,1 30.26 E.

How deep is the HMS MARCONI and where exactly is it located?

The HMS MARCONI lies at a depth of about 7.6 meters and is located at coordinates 51 54.864 N,1 30.26 E.

How deep is the seabed around the HMS MARCONI?

The seabed around the HMS MARCONI lies at approximately 8 meters deep.

When did the HMS MARCONI sink?

The HMS MARCONI sank on Sep 20, 1941.

When was the wreck of the HMS MARCONI discovered?

The wreck of the HMS MARCONI was discovered in 1941.

What country did the HMS MARCONI belong to?

The HMS MARCONI belonged to GB.

What was the tonnage of the HMS MARCONI?

The HMS MARCONI had a tonnage of 322 tons.

What type of wreck is the HMS MARCONI?

The HMS MARCONI is classified as a trawler.

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