| Nice example of the 4-12-2 wheel configuration unique to only the UP railroad. The loco was built by Alco-Schenectady in July of 1929. Specs - serial #67952, class UP-4, 67" drivers, 220 psi boileer pressure, three 27" diameter cylinders (two with 32" stroke and one with a 31' stroke), tractive effort of 96,650 lb. Vacated in June of 1955. The photo is from the Howard W. Ameling collection. |