Because It's Friday

PRR T-1s. This is old film, back before amateurs did much with sound film.

T-1s had some advantages. Their running gear was much lighter than that of a simplex eight-wheeled locomotive, reducing both vibration to the engine and track wear. The T-1s were reported to be ungodly fast. They also were harder to maintain and they were so powerful it was possible to slip the drivers at 100mph.

Baldwin made 52 T-1 locomotives for the PRR. None survive.