Editing Pioneer Zephyr (section)

=== Influence on future trains ===
While a revolutionary design, the ''Pioneer Zephyr'' was not the first streamliner—that title went to the [[M-10000]] of the [[Union Pacific Railroad]], which made its first trip in February 1934.{{Sfn|Johnston|Welsh|Schafer|2001|p=11}} However, the ''Pioneer Zephyr'' had several key differences, including the use of a diesel powerplant and stainless steel construction, in contrast to the M-10000's gasoline powerplant and aluminum construction. These two design decisions had a profound influence on future streamliners and other passenger trains, which had more in common with the ''Zephyr'' than the M-10000.{{Sfn|Johnston|Welsh|Schafer|2001|pp=15–16}} The streamlined [[Hiawatha (Milwaukee Road trains)|''Hiawathas'']] launched by the [[Milwaukee Road]] in 1935 were a direct response to (and directly competed with) the Burlington Route's ''Zephyrs''.{{Sfn|Johnston|Welsh|Schafer|2001|pp=38–39}}