World War IDS Hercules DS Hercules was torpedoed on December 30th, 1917, by the German U-boat UB-21 off Whitby. Twelve people lost their lives in the sinking. (Source: Sjøhistorie.no) About DS Hercules Nationality 11659 Built 1909 Wrecked 30.12.1917 Carrier Det Bergenske Dampskipsselskap, Bergen Tonnage 1708 dvt Casualties No casualties found for this ship.