In 1907, Andrews began to oversee the plans for three new ocean liners for the White Star Line: the RMS Olympic, the RMS Titanic and the RMS (later HMHS) Britannic. All three ships were designed by William Pirrie and general manager Alexander Carlisle along with Andrews to be the largest, safest and most luxurious ships at sea. As he had done for the other ships he had overseen, Andrews familiarised himself with every detail of Olympic, Titanic and Britannic, in order to ensure that they were in optimal working order. Andrews's suggestions that the ship have 48 lifeboats (instead of the 20 it ended up with) as well as a double hull and watertight bulkheads that went up to B deck, were overruled.