Lifeboats of the RMS Titanic returned to the White Star Line at New York Harbor, as they were the only items of value salvaged from the shipwreck, but subsequently vanished from history over time. "Titanic" had 20 lifeboats of three different types: The main lifeboats and cutters were built by Harland and Wolff at Queen's Island, Belfast at the same time that "Titanic" and her sister ship were constructed. They were designed for maximum seaworthiness, with a double-ended design (effectively having two bows). This reduced the risk that they would be flooded by a following sea (i.e. having waves breaking over the stern). If a
Wreck of the RMS Titanic previously unseen pieces of wreckage, and led to the documentary "Titanic's Final Moments: Missing Pieces". RMS Titanic Inc. mounted further expeditions to "Titanic" in 2004 and 2010, when the first comprehensive map of the entire debris field was produced. Two autonomous underwater vehicles – torpedo-shaped robots – repeatedly ran backwards and forwards across the debris field, taking sonar scans and over 130,000 high-resolution images. This enabled a detailed photomosaic of the debris field to be created for the first time, giving scientists a much clearer view of the dynamics of the ship's sinking. The expedition encountered difficulties: several hurricanes passed