SS Delphine is a yacht commissioned by Horace Dodge, co-founder of Dodge Brothers. The yacht was launched on 2 April 1921 Captained by Arthur A. Archer. Power was originally supplied from three Babcock & Wilcox boilers powering two 1,500-horsepower (1,100 kW) quadruple-expansion engines. In her 2003 refit Delphine was re-equipped with two modern water-tube boilers operating at 20 bars (290 psi), the larger of which has an evaporation capacity of 14 metric tons (31,000 lb) of steam per hour while the smaller can evaporate 4 metric tons (8,800 lb) per hour; these new boilers supply the original quadruple-expansion engines. "Of all the large American-built steam yachts built between 1893 and 1930, the Delphine is the only one left in her original condition with her original steam engines stil