| Here is a massive example of a 1943 Alco articulated 4-6-6-4 Challenger type locomotive. No information was included with this photo. Specifics - J-95 class, 69" drivers, four 20.5x32" cylinders, 69" drivers, and an impressive boiler pressure of 285 psi. The engine weight tipped the scales around 597,000 lb. It could generate a tractive effort of 94,000 lb. The loco was scrapped between 1952-53. No photographer listed - the date is an approximation.. |