USS Rainier (AE-5), the second US Navy vessel named after Mount Rainier, was laid down on 14 May 1940 by the Tampa Shipbuilding Co., Tampa, Fla., as Rainbow (MC hull 124); launched 1 March 1941; sponsored by Mrs. Robert E. Anderson; transferred to the US Navy on 16 April 1941; converted for use as an ammunition auxiliary; and commissioned as Rainier (AE-5) on 21 December 1941 at Norfolk, Va..