Travel and Transport Building, A Century of Progress Exposition, Chicago, 1934. Yesterday! Back in the late Forties the doughty Pioneer, operating over some forty miles of strap rail, was the first locomotive in service from Chicago to the West. Today! The Giant Class "H", largest dual service locomotive in the world, now in service on the Chicago & North Western Ry., is capable of a speed of 85 miles an hour; can haul 150 loaded freight cars (a train about 1? miles long) at a speed of 50 miles an hour! The Chicago & North Western Ry. With over 10,000 miles of perfectly equipped railway extending into nine middle western states, the Chicago & North Western Railway provides a passenger and freight service west, north and northwest of Chicago that is efficient, modern and complete. The "North Western" adequately meets today's travel and shipping requirements.