The RMS Olympic was the first of the White Star Line's three
Olympic-class ships, and the only one not to sink.  Because of her
outstanding service in WW1 she became known as "The Old Reliable".

RMS Olympic     Maiden voyage 14 June 1911, scrapped 11 October 1935
RMS Titanic     Maiden voyage 10 April 1912, sank 15 April 1912
HMHS Britannic  Maiden voyage 12 December 1915, sank 21 November 1916

An interesting article about the Britannic, "Fall Of Titanic's
Sistership Remains A Mystery", by Nina D. Miller, is at

    http://www.marinelink.com/jan97/mr01304.html

Robbie Rhodes