Hocking Valley 2-10-2 "Santa Fe" Locomotives in the USA

Class F-1 / B-1 (Locobase 477)

Data from C&O Power and 1936 C& O Locomotive Diagram book supplied by Allen Stanley in May 2005 from his extensive Rail Data Exchange. (Thanks to Chris Hohl for his 24 December 2021 email correcting the engine and total wheelbases, tender capacities and for pointing out several differences in data between the 2952 and the other nine.)

These were produced for the Lehigh Valley as R-1s 4061-4075 in November 1919 (Locobase 459), but that railroad quickly sold them to the Hocking Valley in April 1920 because their small drivers did not match the LV's faster-freight requirements.

Ten of these carried over to the C&O when the latter acquired the HV in 1930; the other six went to the Pere Marquette. At some point, tube heating surface decreased when ten tubes were deleted. As shown, the firebox heating surface includes four arch tubes comprising 29 sq ft (2.7 sq m) and the combustion chamber. 14" (356 mm) piston valves had 8 1/4" maximum travel. Cylinder horsepower calclulated to be 3,102.

Chris Hohl notes that the C&O increased tender capacity in 1940 by fitting the B-1s with ones weighing 305,000 lb (138,346 kg) when carrying 22 1/2 tons (20.5 metric tons) of coal and 16,000 US gallons (60,560 litres) of water. Total engine & tender wheelbase increased to 90 ft 11 1/2 in (27.72 m).

Only the 2952 received an Elesco feed water heater, its installation led to a new class ID of B-1-A.Chris Hohl pointed out 2952's slight increase in total wheelbase to 81 ft 2 7/8 in (24.76 m) and the additional 15 sq ft (1.39 sq m) of arch tubes increasing firebox heating surface area to 423 sq ft (39.30 sq m). Cross-compound air pumps and the Elesco drum added 6,090 lb (2,762 kg) to the front truck's load. When LV removed the Elesco in the last 1940s, the 2952's weighed about the same as the other nine.

The last of these was retired in 1952.