caption serviceyears death_place death_date birth_place awards image_size birth_date rank image article_title name
ernst kals 1924 -- 45 emden 2 november 1979 glauchau , saxony , german empire knight 's cross of the iron cross 200 2 august 1905 kapitän zur see ernst kals.jpg ernst kals
 ernst kals
ernst kals

ernst kals -lrb- 2 august 1905 -- 2 november 1979 -rrb- was a `` kapitän zur see '' with the `` kriegsmarine '' during world war ii .
he commanded the type ixc u-boat on five patrols , and sank twenty ships , for a total of 145,656 tons of allied shipping , becoming the sixteenth highest scoring u-boat ace of world war ii .
he was awarded the knight 's cross of the iron cross , awarded to recognise extreme battlefield bravery or successful military leadership .
