The Class J 4-8-4 was an engine of quiet superlatives. Handsome, powerful (5100hp), it was designed and styled by the N&W's homegrown team of designers and craftsmen at the road's Roanoke, Virginia shops. Built in several groups between 1941 and 1950, a mere fourteen J's were able to handle 80% of the N&W's passenger traffic, because their designers addressed one of steam power's key weaknesses: down time for maintenance and repairs. The Js were designed to go a quarter-million miles between scheduled shop visits. They were engineered for quick pit stops. In less than an hour, a J could be fully serviced, lubricated, filled with coal and water and ready for its next dash over the road's 676-mile main line
 
Model features include die cast boiler, chassis and tender body, authentic paint scheme, real coal load, metal handrails and whistle, metal wheels and axles, constant voltage headlight, operating firebox glow, operating numberboard lights, cab interior light and remote controlled Proto-Coupler. Equipped with Proto-Sound 3.0, synchronized Proto-Smoke system and precision flywheel-equipped motor.