How much water does the boiler hold normally when running?
It is about half full. This water, heated to nearly 500 degrees, is the stored power of the Stanley car. It contains enough energy, built up in advance, without adding any more, to drive the car some three or four miles on a good level road. This available energy or stored power is what makes possible the highly important element of control by one throttle. It is what gives you the sense of mastery over the situation when driving a Stanley car. It is one of the factors of the Stanley’s matchless performance.
