@PRR1950 posted:The only "blue" steam engines I can recall are the Blue Goose (Santa Fe), the Blue Comet (CNJ) and the Royal Blue (B&O). However, at 71, my recollection isn't always that great.
Chuck
The Frisco had 3 well-known blue steam engines, the 4500, 4501 and 4502 Meteor northerns. The Wabash also had seven P-1 class Hudsons painted blue.