Topic summary
PRR S2
Extracted from the Wikipedia article Pennsylvania Railroad class S2.
Design specification
The tender of the PRR S2 #6200 was originally made for a class L1s locomotive with the designation 180-F-82. Later, it was assigned as 180-P-75 for class K4s No. 3768; the tender was rebuilt again and received the designation 180-P-85 for S2 6200 use. This large 16-wheel tender was similar to that used on the PRR's other large passenger locomotives, the T1 and S1. In order to reduce the crew's workload, a "Fluid Pressure Control System" (U.S. patent 2,515,962) designed by Westinghouse engineer Harry C. May was installed on the locomotive. It controlled starting, running, reversing, power output, and speed, and limited speed in both directions of operation, all in one single control lever which was installed in front of the engineer's seat.