BLI 7366 Union Pacific 4-8-4, Class FEF-2, #829, TTG w/ Yellow, Paragon4 Sound/DC/DCC, Smoke, HO

New Page 1 The Northern type locomotives on the Union Pacific were built by Alco Schenectady Works in 3 classes between August 1937 and December 1944.  The first class, designated FEF-1, for Four Eight Four, comprised numbers 800-819.  Fitted with 77-inch drivers and a 300-pound boiler pressure, UP was impressed by their performance and took delivery of 15 additional 4-8-4 locomotives in Aug-Oct 1939, numbers 820-834. These locomotives were equipped with 80-inch drivers and larger 14-wheel centipede style tenders with a 23,500 gallon capacity and were class FEF-2.  In Dec 1944, 10 additional 4-8-4 locomotives were delivered, these equipped with low-backpressure double stacks, numbered 835-844, and designated FEF-3.  All three classes developed 63,800 lbs of tractive effort.  Throughout their service careers multiple modifications were made, including conversion to oil, feedwater heater systems, addition of smoke li