HO Scale
HO Scale (1:87) is by far the most popular scale in the industry, featuring the widest variety of high quality trains and accessories. At half the size of O scale, HO scale trains can fit into smaller spaces and are the perfect size for most hobbyists whether you are just a beginner or a seasoned modeler. Popular manufacturers of HO scale trains include Athearn, Atlas, Bachmann, Intermountain, Walthers, and Rapido, among many more.
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![Atlas 10004399 HO MASTER GP40-2W SILVER PAN AM RAILWAYS ["SMURF"] #505 DC](https://www.trainworld.com/media/amasty/amlabel/NEW_ARRIVALS_3.png "Atlas 10004399 HO MASTER GP40-2W SILVER PAN AM RAILWAYS ["SMURF"] #505 DC")
![Atlas 10004421 HO MASTER GP40-2W GOLD PAN AM RAILWAYS ["SMURF"] #511 with DCC and Sound](https://www.trainworld.com/media/amasty/amlabel/pre-order_1.png "Atlas 10004421 HO MASTER GP40-2W GOLD PAN AM RAILWAYS [\"SMURF\"] #511 with DCC and Sound")
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![Atlas 10004399 HO MASTER GP40-2W SILVER PAN AM RAILWAYS ["SMURF"] #505 DC](https://www.trainworld.com/media/catalog/product/h/1/h10004399_1.jpg?optimize=high&bg-color=255,255,255&fit=bounds&height=220&width=240&canvas=240:220)
Atlas 10004399 HO MASTER GP40-2W SILVER PAN AM RAILWAYS ["SMURF"] #505 DCNumber 10004399
Manufacturer Atlas
Scale HO$134.99 -
![Atlas 10004421 HO MASTER GP40-2W GOLD PAN AM RAILWAYS ["SMURF"] #511 with DCC and Sound](https://www.trainworld.com/media/catalog/product/h/1/h10004399_3.jpg?optimize=high&bg-color=255,255,255&fit=bounds&height=220&width=240&canvas=240:220)
Atlas 10004421 HO MASTER GP40-2W GOLD PAN AM RAILWAYS ["SMURF"] #511 with DCC and SoundNumber 10004421
Manufacturer Atlas
Scale HO$199.99 -
Bachmann 63544 HO EMD GP40 - Pan Am® Railways #313 DCC readyNumber 63544
Manufacturer Bachmann
Scale HO$99.99
