<Li> Eighteen Bristol Channel Pilot Cutters are believed to survive worldwide . In addition to them...</Li> <Li> The German pilot schooner No. 5 Elbe was launched in 1883 and had a long history as pilot boat, as private yacht named Wander Bird and later as home to hippies in San Francisco, before returning to Germany and being restored as a traditional sailing boat . </Li> <Li> The German pilot schooner Cuxhaven was launched in 1901 and survived as a sailing boat, renamed Atalanta and still active as a traditional sail training ship under that name . </Li> <Li> The US motorboat USS California was completed in 1910 and served in World War I on harbor patrol duty . </Li>

What is the pilot of a ship called