Subject:
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Re: Stupid question about steam engines
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Newsgroups:
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lugnet.trains
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Date:
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Wed, 5 Apr 2000 11:18:55 GMT
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In lugnet.trains, James J. Trobaugh writes:
> Ok don't laugh me out of the group, but I have a very basic question
> about old steam engines. I don't understand the numbers for the wheel
> layouts. I thought I did, but after reading a book on train history this
> evening I'm even more confused than before. What do the series of three
> number mean when referencing the drive wheel layout of steam engines
> (i.e. 0-4-0,4-4-0,2-6-0,4-6-2 etc.)?
This is the White (SP) system in action. First number is the # of wheels in
the leading truck (unpowered) 2nd # is the # of powered wheels, 3rd # is
unpowered trailing wheels. All on Loco.
Of course, those are relatively easy engines, respectively 0-4-0 switcher,
American, Mogul, Pacific.
to see a photo of my model pacific, look at:
http://www.geocities.com/MotorCity/Speedway/2049/livesteam.html
and it is the 3rd photo (the green loco).
Your typical North American (GM/GE) diesel engine is either a 0-4-4-0 or a
0-6-6-0 (if built prior to about 1990). Beleve it or not, but the FRA required
all engines to be classified using this system, and so diesels are classed as
though they are a articulated engine.
Some oddball engines:
0-44-0 (Farlie)
4-8-8-4 (Big Boy)
2-6-0-0-6-2 (Garratt)
0-4-4-4-0 (3 Truck Shay)
There is also a European system, which uses the # of -axles- rather than
wheels.
So, if you see a 2-C-1, that is also a pacific. (just thought I would
compleatly confuse you!)
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Message has 1 Reply:
 | | Re: Stupid question about steam engines
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| (...) Acctually I think it's a good question, most books etc. assume you know some jargon already so if you're new to the train-hobby I can imagine it's confusing. <answer snipped> (...) Larry has a page with some RR jargon on it. At the bottom of (...) (25 years ago, 5-Apr-00, to lugnet.trains)
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Message is in Reply To:
| | Stupid question about steam engines
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| Ok don't laugh me out of the group, but I have a very basic question about old steam engines. I don't understand the numbers for the wheel layouts. I thought I did, but after reading a book on train history this evening I'm even more confused than (...) (25 years ago, 5-Apr-00, to lugnet.trains)
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