Ref below two hyperlinks
PRR H10 ... https://en.wikipedia.org/wiki/...ia_Railroad_class_H8
NYC H10 ... https://nycshs.files.wordpress.../2014/10/mikados.pdf
The PRR H8, H9 and H10 are 2-8-0 wheel configuration. The NYC H10 is 2-8-2 wheel configuration.
I am puzzled as to why they are both referred to as H10s.
Thoughts?
Tom
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Different railroads used their on mechanical classifications.
Mechanical classifications we're not manufactures model as in diesels. Many railroads had there own classifications for diesels as well, at least early on and some until the company ceased to exist.
Different railroads had different schemes to designate their locomotives. On the Pennsy, an A-class steam locomotive was an 0-4-0. On the N&W, an A-class was a 2-6-6-4. Don't look for consistent letter designations from one railroad to another.
REF: NHVRYGray " Different railroads used their on mechanical classifications. " Bob " Don't look for consistent letter designations from one railroad to another. "
Appreciate the feedback.
Tom
PRR H10
Lionel is an H9
True - a locos class (not "type" - that's the wheel arrangement) is an owner/customer designation, not one applied by the builder. Were there exceptions? Offhand, I can only think of the first 2-8-4, called an "A-1" by the builder, Lima. The class stuck.
As an aside: as classes are RR designations, one wonders why the class designation letter "K" was used by at least 4 railroads to classify their Pacifics...the New York Central, PRR, Erie and Louisville and Nashville all used "K" for their 4-6-2's. Other "K" roads?
Just a coincidence, I know.
I am not sure how other roads classified their diesels, but the Pennsylvania initially had their own class designation for their diesels. Their first attempt was cumbersome and did not last long. Their second attempt was better and while it seemed complicated, it really wasn't. For example:
-ALCO's FA1 was AF15 for ALCO Freight 1500hp.
-ALCO's PA1 was AP20 for ALCO Passenger 2000hp.
-Baldwin's VO-1000 was BS10 for Baldwin Switcher 1000hp.
-EMD's F3 was EF15 for EMD Freight 1500hp
-EMD E7 was EP20 for EMD Passenger 2000hp.
-FM's H20-44 was FRS20 for FM Road Switcher 2000hp.
-Brill-660 was GEG415 for Gas-Electric 415hp with General Electric motors
-Brill-350 was GEW350 for Gas-Electric 350hp with Westinghouse motors
Did other roads do something similar?
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