The Challenger Locomotives

Auto-Liner, hardcover, 144 pages, standard portrait book 8 x 10 in.

, B&W photographs.The story of Union Pacific's Challenger 4-6-6-4 steam locomotives from development to their final years. Illustrated with B&W photographs and extensive text.

Contents:

• The First Challengers
• Union Pacific Influence
• Passenger Assigned
• Modifications 3900-3939 Early Series
• Operations 3900-3939 Early Series
• Jabelmann Power
• Extra 3950 West
• War-Time Duplicates
• Last Steam Design
• Modifications Later Series
• Operations Later Series. Features: New Hardcover William Kratville Kratville Publications 1980