Ub 74 Wreck

Field Value
Wreck Category dangerous wreck
Ub 74 Wreck Location
Marine Coordinates (DMM) 		50 31.817 N,2 33.429 W
Latitude, Longitude
Decimal Degrees
  • Latitude: 50.530283
  • Longitude: -2.557150
Wreck Depth 30.3 m
Water Depth 33 m
Water Level Effect always under water/submerged
Vertical Datum Approximate Lowest Astronomical Tide
Name UB 74
Type submarine
Flag DE
Length 55.5 m
Width 5.8 m
Sonar Length 83
Sonar Width 23
Shadow Height 5.8
Orientation 165
Tonnage 650
Tonnage Type displacement
Conspic Visual not visually conspicuous
Conspic Radar not radar conspicuous
Date Sunk May 26, 1918
Bottom Texture Sand
Scour Dimensions ,,001.3,
Original Detection Year 1918
Last Detection Year 2009
Original Source national coast guard or patrol
Surveying Details 4.6.18 SUNK IN 503200N, 023330W, 4M N 60M W OF PORTLAND BILL. (PORTLAND AP REPORT). H820/32 29.4.32 GERMAN SUBMARINE 291DEGS, 3.7M FROM PORTLAND BILL. DEPTH OVER WRECK 15FMS. (RA GOSPORT, FEB 1932). CHART AS WK 15FMS 0FT IN 503206N, 023342W BY NM. 22.3.45 SONAR CONTACT IN APPROX 503212N, 023318W. (AUBD 303/154). H3971/52 3.7.52 WK IN 503158N, 023306W USING HSA. WIRE DRIFT SWEEP ON 27.5.52, CLEAR AT 12FMS FOUL AT 13FMS. LEAST DEPTH 86FT. EXTENDS FOR ABOUT 250FT IN A NE/SW DIRECTION. LIES IN SURROUNDING DEPTHS OF 18FMS. (HMS SCOTT/SCES, 27.5.52, SURVEY [E9419]). CHART AS WK 12FMS 0FT IN REVISED POSN. NOTE. HH3950/70 21.5.71 NOW CHARTED AS WK 21.5 MTRS [LAT - 0.4MTRS]. NC 3315. H2923/83 2.1.85 EXAM'D ON 8.7.84 IN 503200N, 023304W [OGB] USING SYLEDIS. SWEPT CLEAR AT 26.0, FOUL AT 26.2MTRS. LEAST E/S DEPTH 26.6 IN GEN DEPTH 33MTRS. SCOUR 2MTRS DEEP. DCS3 HT 7.3MTRS. LYING 150/330DEGS. (GARDLINE SURVEYS, HI 202). AMEND TO SW 26MTRS IN REVISED POSN. HH100/351/16 13.10.00 DIVED IN 5031.816N, 0233.430W [WGD] USING DGPS. FAIRLY HEAVILY BROKEN. PRESSURE HULL BREACHED. (T JOHNSON. LTR DTD 10.10.00). NCA. SEP 2010/000005843 29.12.09 LOCATED 25.2.09 IN 5031.817N, 0233.429W [WGD] USING DGPS. LEAST M/B DEPTH 30.30 IN GEN DEPTH 34.5MTRS. NO SCOUR. LENGTH 51.5MTRS, WIDTH 18.3MTRS, HT 4.65MTRS. LIES 015/195 DEGS. STRONG MAGNETIC ANOMALY. (FUGRO OSAE, HI 1154). POOR SONAR CONTACT. INTACT. AMEND WK 30MTRS IN REVISED POSN. BR STD. 30.7.18 DIVED 2018 BY GRAHAM LOCKETT (NAVAL AIR COMMAND, SAC) CONFIRMED AS A SUBMARINE. NFA.
Last Amended Date Dec 31, 2009

Circumstances of loss

DEPTH-CHARGED & SUNK BY HM YACHT LORNA.

General Comments

INTACT

WRECK MAP LOADING ... 50 31.817 N,2 33.429 W
Ub 74 on Wreck Map Ub 74 Wreck on Google Map

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FAQ

Where is the UB 74 wreck located?

The UB 74 wreck is located at coordinates 50 31.817 N,2 33.429 W.

How deep is the UB 74 and where exactly is it located?

The UB 74 lies at a depth of about 30.3 meters and is located at coordinates 50 31.817 N,2 33.429 W.

How deep is the seabed around the UB 74?

The seabed around the UB 74 lies at approximately 33 meters deep.

When did the UB 74 sink?

The UB 74 sank on May 26, 1918.

When was the wreck of the UB 74 discovered?

The wreck of the UB 74 was discovered in 1918.

What country did the UB 74 belong to?

The UB 74 belonged to DE.

What was the tonnage of the UB 74?

The UB 74 had a tonnage of 650 tons.

What type of wreck is the UB 74?

The UB 74 is classified as a submarine.

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