Baltimore & Ohio T-3a 4-8-2 5564

Baltimore & Ohio T-3a 4-8-2 5564

In the early 1940's, B&O decided that their Q-4 Mikes were not wheeling freight across the midwest as efficiently as desired. Rebuilding four Q-4's with 70-inch drivers gave them added speed. Deciding they could do a bit better, B&O salvaged the boilers of retired Mikes and Pacifics to create 40 seemingly small-boilered T-3 class Mountains. They were classes Class T-3 (5555-5563), T-3a (5564), T-3b (5565-5584), and T-3c (5585-5594). A few engines received extra-long tenders and were re-classed T-3t. They pulled both fast freight and passenger trains with ease west of Pittsburgh and east of Chicago. During the first World War, the United States government put the nation's railroads under the control of a government agency: the USRA (United States Railroad Administration). The lasting legacy of the USRA was a group of standard locomotive designs, which were used by railroads across the country. The locomotives were designed to use a minimum of materials to conserve vital materials for the war effort. To serve as many roles as possible, the USRA created a set of 12 standard steam loco designs.
The first to be delivered was Baltimore & Ohio 4500, a USRA light 2-8-2. This engine is currently on display at the B&O Railway Museum in Baltimore, Maryland. The USRA engines came very late: even 4500 served for only a few months before the war ended; many USRA engines were not delivered until after the war.
Due to a focus on freight operations in USRA locomotive allocations, relatively few of the USRA passenger engines were built. There were only 47 of these light 4-8-2s built under the USRA, which made it the second most common USRA passenger engine (after the 81 light 4-6-2s). However, the design was modified and copied often following the end of the war. Many roads ordered similar 4-8-2s before and after the war, so this model can easily be a stand in for many 4-8-2 types around North America.

B&O T-3 4-8-2 (all subclasses)
Builder: Baltimore & Ohio (Mt. Clare Shops, Baltimore, MD), 1942-48
Drivers: 70 inch
Cylinders: 27 by 32 inch
Weight: 375,000 pounds
Tractive Effort: 65,100 pounds

Author: Adam Gase

Baltimore & Ohio T-3a 4-8-2 5564
• config.txt 9.84KB
• readme.txt 2.52KB
sound
clank_loop_low.wav 62.30KB
dynamo.wav 41.75KB
piston_stroke1.wav 19.16KB
piston_stroke2.wav 19.34KB
piston_stroke3.wav 19.42KB
piston_stroke4.wav 18.56KB
stokereng.wav 23.11KB
• stack.tfx 532 bytes
• steamlococabindata.gs 10.36KB
• steamlocomotive0905.gs 7.54KB
usra_lmount_art
ebt_mike17_art_512.bmp 192.05KB
ebt_mike17_art_512_a.bmp 192.05KB
ebt_mike17_art_icon.bmp 24.05KB
ebt_mike17_art_icon_a.bmp 24.05KB
usra_lmount_art_512.texture.txt 85 bytes
usra_lmount_art_icon.texture.txt 87 bytes
usra_lmount_body
cabebt.texture.txt 29 bytes
cabebt.tga 48.04KB
chain-chain_a.texture.txt 47 bytes
chain.tga 4.04KB
chain_a.bmp 3.05KB
copy of usra482.tga 4.00MB
ebtdriver.texture.txt 32 bytes
ebtdriver.tga 192.04KB
ebtdriver2.texture.txt 33 bytes
ebtdriver2.tga 192.04KB
env_metal.bmp 12.05KB
env_metal.texture.txt 32 bytes
glass.texture.txt 28 bytes
glass.tga 48.04KB
lod1.im 1.11MB
lod2.im 545.26KB
number white.tga 192.02KB
number.texture.txt 47 bytes
number.tga 192.02KB
shadow1.texture.txt 49 bytes
shadow1.tga 64.04KB
usra482.texture.txt 30 bytes
usra482.tga 4.00MB
usra_lmount_body.lm.txt 252 bytes