The two pilots of the American vessel said they saw a flat fish at the bottom but had no photograph to prove it.
What would prove decisive though was small arms fire from the American vessel.
American vessels frequently had a name incorporating the word "Victory".
American vessels are built low and narrow, without much room for provisions.
That would be only one meter, or three feet, short of the depth reached by the American vessel in 1960.
The second data set was collected by American vessels from 1993 to 1997.
Naturally no American vessel might be searched on the high seas.
The ship in her company, which escaped, was an American vessel that she had taken as a prize.
The majority of the accidents detailed in the report, 799, involved American vessels.
No fire would be directed against the American naval vessels.