A low-height 15-ton mine locomotive

WITH THE ADVENT of mechanical mining it has become possible to mine coal from seams formerly considered too narrow for practical working. As a result, locomotive designers had to produce a haulage locomotive, big enough to handle the production of coal in seams 30 to 42 inches high. Moreover, the locomotive must conform to the requirements for standard haulage-type locomotives as regards high continuous tractive effort, latest traction motor design, sturdy construction, accessibility of equipment, and capability to accelerate a train.