HMHS Britannic filming the wreck for National Geographic. In 2012, on an expedition organised by Alexander Sotiriou and Paul Lijnen, divers using rebreathers successfully installed and recovered scientific equipment used for environmental purposes, to determine how fast bacteria are eating "Britannic"s iron compared to "Titanic". Having her career cut short in wartime, having never entered commercial service, and having had few victims, "Britannic" did not experience the enthusiasm aroused upon the mention of her name, unlike that of her sister ship "Titanic". After having been long ignored by the public, she finally gained fame when her wreck was discovered. Her name was
Sister ship American sister ships and , and the German Hindenburg class airship's "Hindenburg" and "Graf Zeppelin II". The generally accepted commercial distinctions of a "sister ship" are the following: The critical overriding criteria are the same hull design. For example, the popular TESS-57 standard design built by Tsunishi Shipbuilding are built in Japan, China, and the Philippines. All the ships of this design are classed as "sister ships". The International Maritime Organization defined "sister ship" in IMO resolution MSC/Circ.1158 in 2006. Criteria included these: Sister ship A sister ship is a ship of the same class or of virtually identical design