Hmsm Sealion Wreck

Field Value
Wreck Category non-dangerous wreck
Hmsm sealion Wreck Location
Marine Coordinates (DMM) 		55 23.388 N,5 8.308 W
Latitude, Longitude
Decimal Degrees
  • Latitude: 55.389800
  • Longitude: -5.138467
Wreck Depth 50.49 m
Water Depth 60 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name HMSM SEALION
Type submarine
Flag GB
Length 63.7 m
Width 7.3 m
Draught 3
Sonar Length 66.9
Sonar Width 7.4
Shadow Height 10.3
Orientation 296
Tonnage 960
Tonnage Type displacement
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk Mar 3, 1945
Bottom Texture Mud
Original Detection Year 1966
Last Detection Year 2020
Original Source naval vessel
Surveying Details H1190/67 19.4.67 LOCATED IN 552324N, 050808W. LEAST E/S DEPTH 27 IN GEN DEPTH 31-33FMS. AREA FULL OF BOTTOM ECHOES. (HMS MERMAID, 1966). H7551/68 17.1.69 NOT FOUND IN INTENSIVE SEARCH. NUMEROUS BOTTOM ECHOES IN THE REPORTED VICINITY. (HMS HYDRA, HI 27/68). H2579/76 12.5.81 EXAM'D 13.11.80 IN 552323.1N, 050813.9W [OGB] USING TRISPONDER [2 LOP]. LEAST E/S DEPTH 51.4 IN GEN DEPTH 62MTRS. NO SCOUR. DCS3 HT 7.8MTRS. INTACT, LYING 140/320DEGS. (HMS HERALD HI 9/80). BR STD. 5.6.00 DIVED 5.6.00 IN LISTED POSN. CONFIRMED AS HMS SEALION. (INNES MCCARTNEY, TELECON 5.6.00). NCA. 4.11.04 EUT POSN: 5523.383N, 0508.301W. NE 2126. SEP 2021/000344798 5.1.22 EXAM�D 17.9.20; IN 5523.388N, 0508.308W [WGD]. LEAST M/B DEPTH 50.49MTRS IN GEN DEPTH 60MTRS. LENGTH 66.9MTRS, WIDTH 7.4MTRS, HT 10.3MTRS. ORIENTATION 296/116 DEGS. UPRIGHT, INTACT. (CLINTON MARINE SURVEY AB, HI 1680, H525-3909). AMEND NDW 50MTRS IN REVISED POSN.
Last Amended Date May 12, 2022

Circumstances of loss

BUILT BY CAMMELL LAIRD, BIRKENHEAD IN 1934. SUNK AS A SONAR TARGET BY RN. (CLYDE SHIPWRECKS)

General Comments

UPRIGHT, INTACT

WRECK MAP LOADING ... 55 23.388 N,5 8.308 W
Hmsm Sealion on Wreck Map Hmsm Sealion Wreck on Google Map

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FAQ

Where is the HMSM SEALION wreck located?

The HMSM SEALION wreck is located at coordinates 55 23.388 N,5 8.308 W.

How deep is the HMSM SEALION and where exactly is it located?

The HMSM SEALION lies at a depth of about 50.49 meters and is located at coordinates 55 23.388 N,5 8.308 W.

How deep is the seabed around the HMSM SEALION?

The seabed around the HMSM SEALION lies at approximately 60 meters deep.

When did the HMSM SEALION sink?

The HMSM SEALION sank on Mar 3, 1945.

When was the wreck of the HMSM SEALION discovered?

The wreck of the HMSM SEALION was discovered in 1966.

What country did the HMSM SEALION belong to?

The HMSM SEALION belonged to GB.

What was the tonnage of the HMSM SEALION?

The HMSM SEALION had a tonnage of 960 tons.

What type of wreck is the HMSM SEALION?

The HMSM SEALION is classified as a submarine.

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