PENZANCE is in Cornwall – The Minecountermeasure vessel PENZANCE sailed into the Cornish port for a four days visit, which included a memorial service for the previous PENZANCE, a sloop, sunk on convoy duty south of Iceland in August 1940 by the German submarine U-37.     The German torpedo sliced the ship in the half and as PENZANCE broke in two and sank, the depth charges in her stern section exploded, killing some of the survivors, in all just 18 of the 108 officers and ratings aboard the sloop were saved.