Ground ambulances are generally much less expensive, with an average emergency run coming in at $800 to $2,000, depending on the region and other factors, according to J.D. Fuiten, secretary of the American Ambulance Association. During an emergency, when the aircraft show up, there's usually no mention of money.
The traditional electric motor on a diesel-electric or electric locomotive is a DC motor. Internally, DC motors have two main components: the stator is the stationary outside part of a motor. The armature is the inner part which rotates.
How many railroads built there own steam locomotives? How many railroads built there own steam locomotives? I know several of the large railroads had their own steam locomotive erecting shops- Reading, N & W, and the PRR, but how many railroads built their own steam locomotives in their own shops?