I recently bought a copy of Iron Horses of the Santa Fe Trail, by E. D. Worley (1965), which folks on the Real Trains forum advised me to get if I was interested in Santa Fe locos. Wow! 700 big 8.5 x 11 pages! Lots of details.
And on page 374, the chapter "Iron Horses that Didn't Make the Trail," about all the aborted designs and cancelled projects. Most interesting were:
- A cab-forward, semi streamlined 6-4-4-4 for passenger service: think a PRR T-1 with an F3 type cab forward and you pretty much have it.
- A 2-8-10-2: the rear set of drivers was going to be from the Madam Queen design, the front just four more of them.
- A dual cab, 2-8-8-8-8-8-2 - they called it a quintuplex - that ATSF briefly considered around WWI time period, which would have had an articulated boiler that would bend with a type of bellows in the middle of the boiler. They even thought of making it with ten- instead of eight-driver sections using the machinery from the then new 3000 2-10-10-2. I'm not sure about the copyright on drawings and photos taken from this book so I drew up the rendering below based on drawings in the book. It will not be my next project - for one thing I want to turn this over in my mind for a while, but I gotta make a model of this loco. Five Lionel RTR set 0-8-0s would make for a good start.