Atchison, Topeka & Santa Fe Hudsons

The Atchison, Topeka & Santa Fe bought ten 4-6-4s (road number 3450 through 3459) from the Baldwin Locomotive Works in 1927. Curiously, Santa Fe did not refer to these locomotives as Hudsons. Instead, the Santa Fe classified them as an extension of the 3400 class of Pacifics. They were built as Duplex Stoker fired coal burners and converted to oil burners in 1932. During the 1930s these ten locomotives were overhauled and reworked to have 79" drivers and the boiler pressure was raised to 230 psi which changed the tractive effort to 43,300 pounds.

Six more 4-6-4s were designed by the Santa Fe in 1936 and ordered and received from Baldwin in 1937 (road numbers 3460 through 3465). They were oil burners and of a larger and more robust design then the earlier ten. One of this last group, number 3460, was built as a streamlined locomotive and called the "Blue Goose", the only one the road would have. These last six had 23.5 x 29.5 cylinders, 84" drivers, a boiler pressure of 300 psi and a tractive effort of 49,300 pounds.

In December of 1937, number 3461 led a train from Los Angeles all the way to Chicago a distance of 2,227 miles to set a world's distance record for a steam locomotive.

There are two surviving AT&SF 4-6-4s, number 3450, at the LA County Fairplex in Pomona, CA and number 3463, at the Expocenter in Topeka, KS.

ClassQty. Road NumbersYear BuiltBuilder
3450103450-34591927Baldwin
346063460-34651937Baldwin

Specifications
 Class 3450Class 3460
Wheel Arrangement:4-6-44-6-4
Length:97' - 11" (91' - 11")112' - 7"
Drivers:74" dia. (73")84" dia.
Weight on Drivers:198,000 lbs211,400 lbs
Locomotive Weight:343,900 lbs (343,000)412,380 lbs
Locomotive & Tender Weight:639,260 lbs (626,000)712,500 lbs
Grate Area:88 sq ft98.5 sq ft (99.5)
Cylinders:(2) 25" dia. x 28" stroke(2) 23.5" x 29.5" stroke
Boiler Pressure:220 psi300 psi
Tractive Effort:44,250 lbs (44,900)49,300 lbs
Tender Capacity:water: 15,000 gals
fuel oil: 5,000 gals
(20 tons coal)
water: 20,000 gals
fuel oil: 7,000 gals

Photos

Reference