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.
There are three basic types of steam locomotive; non-articulated (rigid frame), duplex (divides the wheels' driving force by utilizing two pairs of cylinders under a single frame), and articulated (featuring a pair of drivers under the boiler, the rear is rigidly mounted while the front pivots to negotiate curves).