Penn Central had quite a few RS11s assigned to the NY Metro area. One very interesting job often assigned an RS11 worked out of Waverly Yard in Newark. He ran the main line (Northeast Corridor but it wasn't yet called by that name) from LANE to UNION. From there, he was routed via the former PRR Perth Amboy & Woodbridge Branch to Perth Amboy where it joined with the CNJ for joint New York & Long Branch operation. He ran the balance of his trip over the NY&LB to Red Bank and an interchange with the the CNJ. He typically ran during the mid-afternoon so I got to see him work in Red Bank after I got out of school.
RS11s were also assigned to jobs working out of Browns Yard in Old Bridge on the old Camden & Amboy to Freehold and Hightstown. If westbounds were very heavy leaving Browns, a G would be dispatched from South Amboy as a helper to Jamesburg.
It was all very fascinating railroading.
Bob