Western Pacific Class M-100

The Western Pacific Class M-100 was a class of seven 4-6-6-4 "Challenger" type steam locomotives that were 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. 
A total of seven examples of these new 4-6-6-4 "Challenger" type steam locomotives 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 had survived into the preservation era, they were all scrapped by 1952 when the Western Pacific Railroad had began to dieselize their lines.
==Stock list==
Image 	Loco No.	Build date	Manufacturer 	Status 	Scrapped
 	401 	1938 	ALCO's Schenectady Works	Scrapped	1952
 	402 	1938 	ALCO's Schenectady Works	Scrapped	1952
Frameless	403 	1938 	ALCO's Schenectady Works	Scrapped	1952
Frameless	404 	1938 	ALCO's Schenectady Works	Scrapped	1952
 	405 	1938 	ALCO's Schenectady Works	Scrapped	1952
Frameless	406 	1938 	ALCO's Schenectady Works	Scrapped	1952
 	407 	1938 	ALCO's Schenectady Works	Scrapped	1952
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:Western Pacific 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:Standard gauge locomotives
Category:Western Pacific Class M-100
Category:Scrapped steam locomotives
Category:Schenectady locomotives
Category:Schenectady Locomotives
Category:Articulated locomotives