This is the information page about the shipwreck Hmsm p555, the water chart below shows the wreck in its immediate vicinity. The position of this wreck is 50 30.914 N,2 33.467 W (50.515233, -2.557783)

The texts accompanying this shipwreck are in English 🇬🇧, as they are prepared by the UK Hydrographic Office (UKHO) based on data from UKHO and the hydrographic services of the Netherlands, Belgium and Germany, among others. They include the known details of the wreck and the comments of the cartographers who have checked the position and condition of the wreck over time.

Name: HMSM P555

Length 66.8 meter, width: 6.4 meter, draught: 4.9, tonnage 1062 ton

Cause: ex- united states submarine s 24, built 1922 by fore river shipbuilding yard, bethlehem, usa, with eight cylinder diesel oil engines of 600hp, twin shaft. one 4 inch gun, 4 torpedo tubes. expended in tests & for use as bottomed sonar target 3.8m w of portland bill. deck gun & propellers removed before sinking. (c in c portland, ships of the royal navy, & diver magazine oct '10).

Year of registration: 1947

Water depth above wreck: 40 meter, Height above seabed: 39 cm

Known since: 1947, last detected: 2009

Details measurements/cartography: H6190/47 9.9.47 POSN 258DEGS, 3M FROM PORTLAND BILL. (C IN C PORTLAND 26.8.47). INS AS NDW IN 503355N, 023329W. BR STD. H6190/47 5.1.48 DRIFTED TO POSN 272DEGS, 3.9M FROM PORTLAND BILL. (C IN C PORTLAND 20.12.47). AMEND POSN. BR STD. H3971/52 21.1.60 EXAMINED IN 503052N, 023327W USING HSA. SWEPT CLEAR 16FMS FOUL 17FMS. LEAST E/S DEPTH 101FT IN GEN DEPTH 21FMS. SCOUR 2FT. LENGTH 300FT. LIES E/W (SCES, HMS SCOTT 27.5.52). AMEND TO WK SW 16FMS. BR STD. 21.5.71 AMENDED TO WK SW 29.0MTRS. NC 3315. H5982/82 4.2.83 WK SHOWN IN 503048N 023324W. POSN FROM DECCA. (KINGFISHER CHART K(SW)1, 1982). NCA. H2923/83 2.1.85 EXAMINED 25.7.84 IN 503053N, 023326W [OGB] USING SYLEDIS. SWEPT CLEAR 29.5MTRS, FOUL 29.8MTRS. LEAST E/S DEPTH 30.8 IN GEN DEPTH 40MTRS. SCOUR 2MTRS DEEP. DCS3 HT 10MTRS. LENGTH 60MTRS. LYING 045/225DEGS. (GARDLINE SURVEYS, HI 202). NCA. 6.10.99 UPRIGHT & INTACT. STANDS 6MTRS PROUD OF THE SEABED. BOW TO EAST. GUN IN PLACE. (DIVER MAGAZINE, OCT '99). NCA. 22.9.10 WOODEN DECKING IN GOOD CONDITION, THOUGH ROTTED THROUGH IN PLACES. DEPTH OF DECK APPROX 40MTRS. GEN DEPTH AT STERN 45MTRS WITH 2MTR SCOUR BEHIND THE KEEL. DIAGRAM & PHOTOS. (DIVER MAGAZINE OCT '10) HH091/154/01 / SEP 2010/000005843 29.12.09 LOCATED 25.2.09 IN 5030.914N, 0233.467W [WGD] USING DGPS. LEAST M/B DEPTH 32.23 IN GEN DEPTH 40.7MTRS. NO SCOUR. LENGTH 68MTRS, WIDTH 8MTRS, HT 8.5MTRS. LIES 039/219 DEGS. STRONG MAGNETIC ANOMALY. (FUGRO OSAE, HI 1154). INTACT. AMEND WK 32MTRS IN REVISED POSN. BR STD.
Comment researcher: UK Hydrographic Office

Commentaar onderzoeker: UPRIGHT & INTACT, BOWS EE

Position: 50 30.914 N,2 33.467 W

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