4-6-4 Hudson
From PikkaWiki
The 4-6-4 Hudson is a steam locomotive in NARS. With a top speed of 110mph, it is the fastest steam locomotive in the Tropic and Arctic climates, and second only to the much larger 4-4-4-4 Duplex in Temperate.
The non-Canadian Hudson will appear with a streamlined bodyshell if built between 1937 and 1946.