I doubt a great white could apply that power to the hull of a ship. Seals, yeah, watched them be hunted by great whites off South Africa.
Found some of these Great White bites...Anyway, as i said i've only "heard" stories...You know what sailors are like...?
How’s this for a quality photo… Private Harold Edward Newman stops for a drink during a patrol, in Papua, New Guinea, November 1942. Born in Tasmania, Australia, Harold enlisted in 1940 aged 24. He was part of the 2/33rd Battalion, one of 3 formed in the UK, to create the 25th Infantry Brigade. Initially, they saw action in the Near East, in Palestine.
Hunter Brothers doing some mid-air mechanical checkups during their 23-day-long flight without landing in 1930. Over the 23 days, food and fuel were delivered to them periodically by another airplane. WTF?
That guy broke the flagpole sitting record in 1958. The Phoenix Man Who Broke the Flagpole Sitting Record in 1958