Yosemite Sam Railway Company Class 7SK and 8SK

The Yosemite Sam Railway Company classes 7SK and 8SK were built by Baldwin, Kisha Seizo, Kawasaki, Shildanker Co., Krupp and Henschel. The letters SK stand for Pacific type (4-6-2). It was built between 1918 and 1934 (7SK) then 1935 and 1943 (8SK).

History
The first three 7SK locomotives was built by Baldwin Locomotive Works, in 1918. Orders of 7SK locomotives were continued by Kawasaki and Kisha Seizo until 1934.

The 8SK - an improved design of 7SK - was built by Shildanker Co., Krupp and Henschel between 1935 and 1943.

The 7SK and 8SK became major express passenger locomotives - throughout 1920s to 1960s. Between 1964 and 1972, the 7SK was retired, while the 8SK remained until between 1965 and 1974. The last 8SK locomotive to retire was 8SK 543, some scrapped, some preserved and some operational in other railways.

Preservation
Few 7SK and lots of 8SK were preserved.
 * 7SK 1: Basement, Riverside Station, FreeCity BRT, Toshiba State, Hyundai Country
 * 7SK 14: Operational in Gooper City Railway, Gooper City, Sigma State, Hyundai Country
 * 7SK 52: Winserick, Gungtong, Kone State, Hyundai Country
 * 7SK 104: Painted in Walt Disney RR colours, in Florida, Orlando, United States.
 * 8SK 1: Kuraby Railway Station Tower Lobby (Level L), Kuraby railway station, with a notice displaying the first 8SK locomotive built
 * 8SK 3: Yosemite Sam Railway Museum
 * 8SK 5: Yosemite Sam Railway Museum
 * 8SK 17: Vermont Station, FreeCity BRT, Toshiba State, Hyundai Country
 * 8SK 44 (Whistler): In operation at Beenleigh Line of TCRS, Toshiba State, Hyundai Country. Nicknamed Whistler due to in fact that this steam locomotive whistles like a traditional kettle.