Rolling stock of the United States

thumb|A Burlington Northern Railroad|Burlington Northern extended-vision caboose at the end of a train in 1993 thumb|An ex–Atchison, Topeka and Santa Fe Railway|Santa Fe Railway caboose used by [[BNSF Railway as a switching platform]]

early high-speed, gas turbine train

mobile missile system that was developed by the United States Air Force during the 1980s