Dead Wake: The Last Crossing of the Lusitania

by Erik Larson

British government and the company agreed to a unique deal. The Admiralty would lend Cunard up to £2.4 million, or nearly $2 billion in today’s dollars, at an interest rate of only 2.75 percent, to build two gigantic liners—the Lusitania and Mauretania. In return, however, Cunard had to make certain concessions. First and foremost, the Admiralty required that the Lusitania be able to maintain an average speed across the Atlantic of at least 24.5 knots. In early trials, it topped 26 knots. There were other, more problematic conditions. The Admiralty also required that the two ships be built so that in the event of war they could be readily equipped with naval artillery and brought into service as “armed auxiliary cruisers.”