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Evidence Of Loss
Date 1995
Event ID 608841
Category Recording
Type Evidence Of Loss
Permalink http://canmore.org.uk/event/608841
Quality of fix = EDM
Evidence = Echo sounder
Horizontal Datum = OGB
General water depth = 57
Orientation of keel/wreck = 100/280
Circumstances of Loss Details
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The U33 was depth-charged and sunk by the British minesweeper, HMS GLEANER.
Surveying Details
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1940. The site was located at 55 21 21N, 005 01 36W. The wreck stand 6.4 metres above the seabed in 60 metres.
Report by Officer in Charge, Greenock.
17 January 1969. The least depth over the wreck by echosounder was 53 metres in general a depth of 57.9 metres. The depth of the scour pit was 58.5 metres. The nature of the seabed is not known. The site gave a poor sonar contact, and was found only as a result of an intensive search. Decca red e 20.23 (0.17) purple g 64.42 (0.17) fixed the position as 55 20 31N, 005 01 44W. The survey wascarried out on 19 May 1968.
Report by HMS HYDRA, 11 October 1968.
Note; from 12 May 1981, these decca co-ordinates when converted give 55 21 36N, 005 01 48W?
6 Janaury 1976. The site was reported at 55 20 35.4N, 005 01 50.9W. The height above seabed was given as 1.5 metres
Report taken from Seatank Co North Channel Survey 26 August 1975.
20 May 1976. The site was not found during survey, however a steep rocky pinnacle of 50 metres least depth was loacted by close echosounding at 55 20 34.5N, 005 01 49 W on the 8 April 1976. Decca chain 3b red d20.15 purple g 60.45(u).
Report by HMS WOODLARK, 9 April 1976.
2 December 1980. The wreck was located at 55 21 29N, 005 01 41W. The least depth was 50 metres in a general depth of 57 metres
Report by HMS HERALD, November 1980.
12 May 1981. The site was examined on 23 November 1980 at 55 21 29.6N, 005 01 41.2W. The least echosounder depth was 50.2 in a general depth of 57 metres. The side scan soanr indicated a height of 4.6 metres. No scouring was observed. The vessel is lying intact, with its keel on an orientation of 100/280 degrees. It is clearly identifiable as a submarine.
Report by HMS HERALD.
Hydrographic Office 1995.
