Mallard BASIC
It was also optimised for speed it is named after the LNER A4 class 4468 Mallard locomotive, the fastest steam locomotive in the world, once again displaying the company's fondness for railway-oriented nomenclature. (For instance, see the company name itself.) In fact the Locomotive name came from the phrase "To run like a train" and it was this theme that was used to name Mallard BASIC no other Locomotive product was named after anything railway-oriented.
4-6-4
The Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road) could have produced the first American since its design work was done earlier than that of the NYC, but financial constraints delayed the project and the Milwaukee's locomotives only emerged in 1930. The Milwaukee called them Baltic, following the European practice started in France. The initial order of fourteen Class F6 locomotives was followed by eight more Class F6a locomotives in 1931 and, in 1938, the Milwaukee acquired six streamlined Class F7 Hudsons with the shrouds. These took over the Milwaukee's crack "Hiawatha" express trains from the Class A Atlantics and were among the fastest steam locomotives of all time. The schedules of many of these trains required extended running at .