Baldwin Class 12-42-F

The Baldwin Class 12-42-F was a class of 13 2-10-0 "Decapod" type steam locomotives that were built by the Baldwin Locomotive Works for only four railroads all across the United States of America between 1924 and 1930.

Construction and delivery
The Baldwin Class 12-42-F locomotives were constructed by the Baldwin Locomotive Works between 1924 and 1930 and they were all delivered to their respective railroads all across the United States of America after their construction date, with the following railroads using them, such as the Alabama, Tennessee and Northern Railroad, Seaboard Air Line Railroad, Georgia Florida and Alabama Railroad, Great Western Railroad and Sugar Company (or sometimes called the Great Western Railway), and the Durham and Southern Railroad.

The Seaboard Air Line Railroad rostered eight examples and classified them as the class D-3, numbering them as 529–536. In 1948, the Seaboard Air Line Railroad (SAL) acquired the Georgia Florida and Alabama Railroad (GF&A) and were amazed at the decapods. This had led to an order of eight more engines of relatively the same design. The new batch was numbered 202–209.

Great Western No. 90 which was operated by the Great Western Railroad and Sugar Company was later given an extended smokebox to help with burning poor quality coal, this was later removed in the 1980s while it was working on the Strasburg Rail Road.

Design
These locomotives were designed with 4' 8" (56-inch) diameter driving wheels, a boiler pressure of 200 psi, and 24-inch x 28-inch (610-mm x 710mm) cylinders, creating a tractive effort of 48,960 lbf (217.78 kN). Most weighed in at 106 t, though the heaviest were 127 t. Their tenders could hold up to 18 tons of coal and 8500 gallons of water, though most compromised with 10 tons of coal and 7000 gallons of water.

Accidents and incidents

 * On November 7, 1944, #90 was hit by a truck at a grade crossing east of Loveland and knocked onto its fireman's side, killing both the fireman and the truck driver. The Great Western Railway sent #90 to the Chicago, Burlington and Quincy Railroad's (CB&Q) shops in Denver, Colorado for repairs. After repairs were finished, the engine returned to service with the GWR.

Preservation
In all, five locomotives are still left on preservation.