Conventional wisdom has it that the PRR bought disastrously bad 4-4-4-4 Duplex locomotives as its post-war K4s replacement, while the New York Central more sensibly bought North America's best 4-8-4, the S1 (and S2) Niagara.
History is complicated. The PRR's T-1 may not have been quite as bad as people usually think (there has been a string about it on the Railroad.net PRR forum...), and, more surprisingly, the New York Central at least THOUGHT about getting a Duplex variant of the Niagara!
Alvin Stuaffer's 1981 book "New York Central's Later Power: 1910-1968" reproduces (p. 269) a New York Central engineering department diagram of a "Class C1A" 4-4-4-4. Richard leonard has a scan of this diagram (sent to him by someone else, and two small to read the lettering) on his excellent steam locomotive archive WWWebsite:
http://www.railarchive.net/nyccollection/nyc_6053.htm
(There's MUCH more on his site: after looking at the diagram and photoshopped picture, explore: it's worth it.)
In the interest of ... promoting historical knowldege and enjoyable speculation? ... I will post some thoughts abut this "ghost" locomotive. Starting with the lettering on the diagram.
Upper right of diagram: Engine Designed for 18[degree] 30 [minute] curve
((Actual lettering is all capital letters.))
((Dimensional data written ON the diagram I'll put into a separate post.))
Bottom left: New York Central System
Office Eng'r Motive Power
New York, N.Y. Mar 28, 1945
Bottom right: Preliminary Diagram
Class C1A
SK-R-6153
My comment: March 1945 is when the prototype Niagara was delivered (with production S1b later that year). So apparently the C1a was considered as a possible follow-on, not as an alternative to, the 4-8-4.
(To be continued)
History is complicated. The PRR's T-1 may not have been quite as bad as people usually think (there has been a string about it on the Railroad.net PRR forum...), and, more surprisingly, the New York Central at least THOUGHT about getting a Duplex variant of the Niagara!
Alvin Stuaffer's 1981 book "New York Central's Later Power: 1910-1968" reproduces (p. 269) a New York Central engineering department diagram of a "Class C1A" 4-4-4-4. Richard leonard has a scan of this diagram (sent to him by someone else, and two small to read the lettering) on his excellent steam locomotive archive WWWebsite:
http://www.railarchive.net/nyccollection/nyc_6053.htm
(There's MUCH more on his site: after looking at the diagram and photoshopped picture, explore: it's worth it.)
In the interest of ... promoting historical knowldege and enjoyable speculation? ... I will post some thoughts abut this "ghost" locomotive. Starting with the lettering on the diagram.
Upper right of diagram: Engine Designed for 18[degree] 30 [minute] curve
((Actual lettering is all capital letters.))
((Dimensional data written ON the diagram I'll put into a separate post.))
Bottom left: New York Central System
Office Eng'r Motive Power
New York, N.Y. Mar 28, 1945
Bottom right: Preliminary Diagram
Class C1A
SK-R-6153
My comment: March 1945 is when the prototype Niagara was delivered (with production S1b later that year). So apparently the C1a was considered as a possible follow-on, not as an alternative to, the 4-8-4.
(To be continued)