HMHS Britannic, under the White Star Line. White Star is a company in which an Olympic class cruise is RMS Olympic and RMS Titanic's sister ship. Britannic before launching a war began, and then at the shipyard in Belfast on hold for several months, until 1915, was used as a hospital ship and transport the wounded supplementary materials. At 8:00 on the November 21, 1916, it was the German submarine U73 number found in the Greek island of Kea waters, was subsequently torpedo attack, but because of improper plus damage control personnel management decentralization led to chaos is drawn to the lifeboat Britannic's propeller, the propeller are broken, resulting in failure to save themselves aground and sank. The shipwreck death toll of thirty people, only five people drowned.