Vertical Datum: LAT Quality of Depth: SWS The MARGAM ABBEY was mined while en-route Tyne to London, 1940. Her bows were blown off and her fore end was reported resting on the bottom, completely submerged, 9 cables from E Knob Buoy. She carried 3750 Tons of coal. 01-MAY-1940 Wreck in 51 32 19N 001 07 52E. 27-MAY-1940 G can buoy laid 350degs 100yds from wreck. 16-OCT-1946 Gpfl(2)g10s lt established on buoy. 06-NOV-1946 Mast showing. 05-SEP-1950 Clear to 40ft. 21-SEP-1950 Lucas wire drift sweep clear at 24ft, foul at 25ft in general depth 46ft. Position 51 32 10N 001 08 25E. 18-OCT-1950 Dispersed to seabed. 19-OCT-1950 Lucas wire drift sweep clear at 38ft, foul at 39ft. Small scour by echo sounder depth in vicinity 39-44ft. Position 51 32 08N 001 08 32E. 07-JUL-1961 Wreck scour found on echosounder in charted position using decca in low visibility. 17-AUG-1960 Drift sweep, clear at 34ft, foul at 35ft, least echo sounder depth 41-49ft. Scour 49ft. 22-SEP-1965 A/s sweep and echosounder. Least depth by echo sounder 47ft in general depth 48ft. Scour 48ft. Very indistinct trace on echosounder. 11-OCT-1973 Sweep, clear at 35ft, foul at 36ft. Least depth by echo sounder 440ft in general depth 42ft. Scour 47ft. Seabed sand. Position 51 32 10N 001 08 31E. Difficult to locate, wispy echosounder trace. Appears to be lying N/S with small scour to E. Could not be located in 1967 by PLA. Only found by scour approx 350ft W by N of charted position. 10-APR-1990 Located using echosounderin JUL-1987. Ng co-ords 617865e, 186656n.

<1> Hydrographic Office wreck index, Extracted 20-JAN-1993, Page Nos. N/a (Bibliographic reference). SKE6339.