Atchison, Topeka & Santa Fe Articulated Locomotives

The Santa Fe built 10 2-10-10-2s out of existing 2-10-2 engine units and low-pressure engine units supplied by Baldwin. A distinctive ribbed firebox trailed the long boiler. Overall, the design was not successful at all and all of the locomotives were converted back to simple-expansion 2-20-2s in 1915 - 1918.

The Santa Fe had a total of sixty-five 2-6-6-2 Prairie Mallets. Of these, 58 were equipped with conventional rigid boilers and seven came with various versions of a flexible boiler. The 3320 (shown below) was one of the last group built in 1911 and featured a flexible boiler.

Specifications
Road Number:	3000	3320
Wheel Arrangement:	2-10-10-2	2-6-6-2
Length:	108'-10"
Drivers:		69"
Weight on Drivers:	550,000 lbs.	315,300 lbs.
Locomotive Weight:	616,000 lbs.	381,800 lbs.
Locomotive & Tender Weight:	882,450 lbs.	567,200 lbs.
Grate Area:	81.9 sq. ft.	63.4 sq. ft.
Cylinders (dia. x stroke):	(2) 28" dia x 32" stroke, (2) 38" dia x 32" stroke	(2) 24" dia x 28" stroke, (2) 38" dia x 28" stroke
Boiler Pressure:		220 lbs.
Tractive Effort:	109,113 lbs.	66,400 lbs.
Tender Capacity
Water:	13,000 gals.	9,000 gals.
Coal:	12 tons	12 tons

Atchison, Topeka & Santa Fe Articulated Locomotives

Photos

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