Hmsm D1 Wreck

Field Value
Wreck Category non-dangerous wreck
Status historic
Hmsm d1 Wreck Location
Marine Coordinates (DMM) 		50 19.97 N,3 29.969 W
Latitude, Longitude
Decimal Degrees
  • Latitude: 50.332833
  • Longitude: -3.499483
Wreck Depth 38 m
Water Depth 48 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name HMSM D1
Type submarine
Length 55.5 m
Width 5.8 m
Sonar Length 53
Sonar Width 8.2
Shadow Height 3.5
Orientation 40
Tonnage 508
Tonnage Type displacement
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Bottom Texture Rock
Original Detection Year 1918
Last Detection Year 2021
Original Source other
Surveying Details H2061/82 14.9.83 EXAM'D 23.3.83 IN 501955N, 032954W [OGB] USING TRISPONDER [2 LOP]. LEAST E/S DEPTH 44.3 IN GEN DEPTH 48MTRS. NO SCOUR. LIES IN AREA IN WHICH MANY LOBSTER POTS ARE LAID. (HMS HERALD, HI 132). BR STD. HH100/351/01 20.10.89 DIVED MAY 1989. DIVERS REPORT AS CLEARLY A SUBMARINE. COMPLETE AND INTACT. HAS A SINGLE STERN TORPEDO TUBE AND FIN HATCH IS OPEN. LIES NE/SW AND IS ABOUT 37MTRS LONG FROM PLOTTER. THOUGHT POSSIBLY TO BE UB 113. (M R ROWLEY, 17.9.89). NCA. 14.6.00 WITH A SINGLE STERN TUBE THIS IS PROBABLY A UC CLASS BOAT. (I MCCARTNEY, TELECON 14.6.00). 18.4.13 EXAM'D 7.1.13 IN 5019.970N, 0329.969W [WGD]. LEAST M/B DEPTH 42.42 IN GEN DEPTH 48.5MTRS. LEAST W/C DEPTH 38.88MTRS. NO SCOUR. LENGTH 53.0MTRS, WIDTH 8.2MTRS, HT 3.6MTRS. LIES 040/220 DEGS. INTACT. (EMU, HI 1374). AMEND WK 38MTRS IN REVISED POSN. 28.7.21 DIVED IN 2018: The wreck was first charted by the UKHO in 1920. Divers identified the wreck as a complete and intact submarine in 1989 and suggested it may be the remains of UB113. Subsequent reinterpretation has suggested the wreck was in fact the remains of UC49. Both of theseproposed identifications were disproved by the results of the 2018 investigation, as the combination of two forward torpedo tubes, single stern torpedo tube, two propellers and single rudder are not found on UBIII class and the UCII class submarines. The overall dimensions and the shape and position of the conning tower, torpedo tubes and deck fixtures are consistent with the technical plans of HMS/m D1. AMEND WK HMSN D1. 28.7.21 HMSM D1 LOCATED IN 5019.970N, 0329.969W [WGD] HAS BEEN AWARDED SCHEDULED MONUMENT STATUS (The Ancient Monuments and Archaeological Areas Act 1979), DTD 30/4/2021, LIST ENTRY NUMBER 1472317. AMEND
Last Amended Date Jan 1, 1975

Circumstances of loss

HMS/m D1 was the prototype for the D-class, the Royal Navy�s first diesel powered submarines. HMS/m D1 was launched in strict secrecy in May 1908, and commissioned in September 1909. The wreck comprises the remains of HMS/m D1, a submarine commissioned into the Royal Navy in 1909. Built by Vickers at Barrow-in-Furness, HMS/m D1 was the prototype for the D-class, which were Historic England Advice Report 26 April 2021 designed as the first submarines intended for long range offensive operations. On the 23 October 1918 HMS/m D1 was expended and scuttled as a target during trials of submarine detection equipment.

General Comments

HISTORIC

WRECK MAP LOADING ... 50 19.97 N,3 29.969 W
Hmsm D1 on Wreck Map Hmsm D1 Wreck on Google Map

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FAQ

Where is the HMSM D1 wreck located?

The HMSM D1 wreck is located at coordinates 50 19.97 N,3 29.969 W.

How deep is the HMSM D1 and where exactly is it located?

The HMSM D1 lies at a depth of about 38 meters and is located at coordinates 50 19.97 N,3 29.969 W.

How deep is the seabed around the HMSM D1?

The seabed around the HMSM D1 lies at approximately 48 meters deep.

When was the wreck of the HMSM D1 discovered?

The wreck of the HMSM D1 was discovered in 1918.

What was the tonnage of the HMSM D1?

The HMSM D1 had a tonnage of 508 tons.

What type of wreck is the HMSM D1?

The HMSM D1 is classified as a submarine.

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