List of proposed locomotives

Despite the fact that we have plenty of locomotives in existence, there are some locomotives that actually never came into existence for their own reasons.
== Steam Locomotives ==
=== Canada: ===
* Canadian Pacific 4-10-2 "Connaught"/Cab Forward
* Canadian National 2-6-2 (built to K-5 specs)
* Canadian National 2-8-2 (built to K-5 specs)
===Japan ===
*JGR Class 78-2
*JNR Class C63
*JNR Class HE10
*JNR Class HE11
*JNR Class KE50
===Soviet union===
* Hexaplex Locomotive
===United States of America===
*4-6-4-6 Locomotive
*6-4-4-4
*American Coal Enterprises 3000
*American Quadruplex Locomotive
*Atchison, Topeka, & Santa Fe streamlined 4-8-4
*Baltimore & Ohio Class W-1
*Hexaplex Locomotive
*Illinois Central streamlined 4-4-2
*Monon Railroad 4-10-4
*Norfolk and Western Class Y7
*Northern Pacific 3-cylinder 4-10-4
*Pennsylvania Railroad Class V1
*Quintuplex Locomotive
*Union Pacific 4-6-4 Hudson
*Union Pacific FEF-4
===United Kingdom===
*British Rail Standard Class 6 #72011 "Horsa"
*British Rail Standard Class 6 #72013 "Wildfire"
*British Rail Standard Class 6 #72015 "Clan Colquhoun"
*British Rail Standard Class 6 #72016 "Clan Graham"
*British Rail Standard Class 6 #72017 "Clan MacDougall"
*British Rail Standard Class 6 #72018 "Clan MacLean"
*British Rail Standard Class 6 #72019 "Clan Douglas"
*GWR 8000 Class
*GWR Collett 2-10-2T
*Hughes Compound 4-6-2 Pacific
*LMS 0-6-6-0 Mallet
*LNER 4-8-2 "Mountain" Type Locomotives
*LNER Class UA1
*L&YR 2-10-0 (Hughes)
*Maunsell 2-6-2
*Maunsell 4-6-2
*Southern Railway No. 21C201
== Diesel Locomotives==
===United Kingdom=== 
* British Rail Class 51 "Super Deltic"
===United States of America=== 
*ALCO Century 428
*ALCO Century 620
*ALCO Century 628
*ALCO Century C636P
*ALCO Century 650DH
*BLW-Westinghouse C-C for Illinois Central
*EMD GP50T
*EMD RB3600
*EMD SD30
==Electric Locomotives ==
===United Kingdom===
*British Rail Class 93 (InterCity 250)
===United States of America===
*EMD DDR 6700 HP Electric Locomotive
*GM-EMC diesel-electric boxcab
*Westinghouse's 16-axle electric locomotive
==Monorails ==
===United States of America===
*President Roosevelt's Monorail
*Ed Valigurski's Rocket-Driven Monorail
*Propeller-Driven Mono-Railbus
==Whole Set of Trains==
===Germany ===
*The Breitspurbahn
==Trainsets ==
===Japan=== 
*187 series
===United Kingdom ===
*British Rail Class 255
*British Rail Classes 371, 381 and 471
*British Rail Class 152 "Super Sprinter"
===United States of America===
*Amtrak's High-Speed Trainset
==Gallery==
File:ACE 3000.jpg|An artist's rendering of the early ACE 3000 design.
File:Baldwin quad patent dwg.gif|One Quadruplex drawing for Henderson's Quadruplex Patent
File:EMD DDR-6700HP-Drawing.jpeg|A drawing of the EMD DDR 6700 Horsepower Electric Locomotive from a book
File:4-8-8-8-8-8-8-4.png|A 4-8-8-8-8-8-8-4 Hexaplex locomotive that was planned by Union Pacific.
File:Biggerboy.gif|A 4-8-8-4-8-8-4-8-8-4 Hexaplex locomotive that was also planned by Union Pacific.
File:Pennsylvania Railroad Class V1.jpeg|Drawing of the Pennsylvania Railroad Class V1.
File:2-8-8-8-8-8-2 Quintuplex Locomotive.png|Ditto without color
File:2-10-10-10-10-10-2 Quintuplex Locomotive.png|An Image of the 2-10-10-10-10-10-2 Quintuplex.
File:4-8-8-8-8-8-4-quintuplex0.jpg|An Image of the 4-8-8-8-8-8-4 Quintuplex that was featured in Transport Fever 2.
==External links==
* https://train-concepts-that-were-never-built.fandom.com/wiki/List_of_Train_Concepts_that_were_Never_Built
Category:Lists
Category:Unbuilt locomotives
Category:Locomotives
Category:Trainsets