SHIPS SS UMBRIA. RMS ETRURIA. Wikipedia, accessed March 10, 2019.SS SILESIA. Hamburg American Line. Hammonia class ship. Had both a steam engine and also set of traditional masts holding eleven sails. Two engines drove a single 10 foot screw with 2,200 horsepower making 54 revolutions per minute. Twelve men shoveling coal continuously from four coal bunkers kept her engines running around the clock.Plans for the SS FRISIA (1872) which were almost the same as those for the SS SILESIA. The ship was launched in Grenock, Scotland on April 14, 1869 and made her maiden voyage from Hamburg to New York on June 23, 1869. 600 passengers-the bottom line says 100 First Class, 140 Second Class and the rest steerage. All information from the Wikipedia article SS SILESIA (1869) accessed March 15, 2019.