The San Tiburcio (Wreck)

 ship wreck, interesting place, draw only border

The German mine exploded, splitting the tanker in two as though she had been cleft by
a giant axe from port side to starboard rail. Surprisingly, though tons of sea water rushed into this 53ft slash, breaking her back, the two halves of the 413ft-long San Tiburcio stayed afloat for more than half an hour, writes Kendall McDonald.
Captain William Fynn took advantage of this buoyancy provided by her sealed tanks, which had held 2193 tons of fuel oil when she set out from Scapa Flow for Invergordon in the Cromarty Firth, and got all his crew, uninjured, into the boats.
They waited and finally saw the San Tiburcio sink. The sections sank upright, but followed one another in moments. The bow section is estimated by Rod Macdonald, the Scots wreck diver who visited her long before the boom in "San Tib" diving in the 1970s, as about 160ft long and lying north-south, bow to the south. The 255ft stern section is about 100ft away and at right angles to the bow.
The San Tiburcio sank on the morning of 4 May, 1940, but the mine, one of eight, had waited nearly three months for a victim since being laid by U9, commanded by the man ultimately placed second in the list of German WW2 submarine aces. Korvettenkapitan Wolfgang Luth sank 43 Allied ships totalling 225,713 tons, outdone only by Otto Kretschmer, who sank 44 ships of 266,629 tons.
The San Tiburcio was built in 1921 by the Standard Shipbuilding Corporation of New York for the Eagle Oil and Shipping Co, and was registered in London on 12 March, 1921.
The Eagle Fleet had been created in 1912 by the first Viscount Cowdray. Its tankers carried Mexican oil through years of boom and slump.
At the outbreak of war the San Tiburcio was requisitioned by the Ministry of War Transport and fitted with a large stern gun. She was the first Eagle Fleet war casualty, but 16 of its tankers were lost by enemy action in WW2, and seven more badly damaged.