Western Pacific No. 406

Western Pacific No. 406 was a class "M-100" 4-6-6-4 "Challenger" type steam locomotive that was built by ALCO's Schenectady Works for the Western Pacific Railroad in 1938.
==History==
In the late 1930s, the Western Pacific Railroad needed more powerful steam locomotives to pull monstrous freight trains throughout their system, so ALCO's Schenectady Works had drew up the blueprints for an all new 4-6-6-4 "Challenger" type steam locomotive that was based off of Union Pacific's Fetter Challengers, this resulted in the creation of what had became the Western Pacific Class M-100. 
No. 406 was constructed in 1938 as one of seven examples of the M-100 4-6-6-4 "Challenger" type steam locomotives that were ever constructed by ALCO's Schenectady Works in 1938 and they were all delivered to the Western Pacific Railroad that same year in 1938.
Withdrawal of the class had commenced and not a single example of the Class M-100, including No. 406 had survived into the preservation era, all seven examples including No. 406 were all scrapped by 1952 when the Western Pacific Railroad had began to dieselize their lines.
==See also==
*Western Pacific Class M-100
*Western Pacific No. 401
*Western Pacific No. 402
*Western Pacific No. 403
*Western Pacific No. 404
*Western Pacific No. 405
*Western Pacific No. 407
Category:4-6-6-4 steam locomotives
Category:Western Pacific locomotives
Category:4-6-6-4 locomotives
Category:American locomotives
Category:Western Pacific Railroad
Category:ALCO locomotives
Category:Standard gauge locomotives
Category:United States
Category:ALCO-Schenectady Locomotives
Category:Locomotives
Category:Steam locomotives
Category:ALCO-Schenectady Works
Category:American steam locomotives
Category:Built in 1938
Category:Scrapped locomotives
Category:4 foot 8 1⁄2 inch gauge
Category:Western Pacific Locomotives
Category:Western Pacific Class M-100
Category:Schenectady locomotives
Category:Schenectady Locomotives
Category:Articulated locomotives