| A time exposure of UP B30-7A 253 at Cotter, Arkansas on the evening of April 5, 1989, Kodachrome by Chuck Zeiler. This locoomotive was built as MP B307A 4853. The "A" in the model designation indicates that the unit produced 3000 horsepower from a 12-cylinder prime mover. This is a time exposure, the streaks in the sky are stars that left a trail as the Earth revolved during exposure, about 20 minutes. |