I am attempting to cast a set of these in 1/8th scale. I am unable to find plans, diagrams, or illustrations, to help me with the numbers. I've been working of photos of trucks being salvaged or swapped out, but a diagram would be so much more helpful.
Anyone have such an animal they'd be willing to scan and email me?

This was a standard truck, made by Commonwealth/General Steel Castings, and interestingly, was never apparently considered an "AAR" design:

http://utahrails.net/loconotes/loconote ... #typeAandB

The key dimensions that are available is a 9' 4" wheelbase, and 40" wheels. Although I could not find a truck drawing as such, some locomotive drawings are available.

http://trainiax.net/me55-ge.php

http://trainiax.net/mescaleloco36-undectype.php

From what I can tell, this type of truck is actually similar to a 4-wheel drop equalizer passenger truck, also called a "Commonwealth" truck, although obviously a good deal larger and heavier, and using two drop equalizers per side if my memory is right.

Not related, but stuck here as a reference item so I wouldn't lose it, an accident report from Canada illustrating an EMD swing bolster:

http://www.tsb.gc.ca/eng/rapports-repor ... 2c0050.asp

Also found in the search, a photo of a P&LE inspection locomotive. The photo is cool, but I wish I could find what we're looking for!

http://justacarguy.blogspot.com/2011/06 ... -from.html

Internet searches can be like going through someone's attic:

http://justacarguy.blogspot.com/2011/06 ... se-it.html

Bah, out of time; a thought, check out the Norfolk & Western Railway Historical site, and check out the archives; there are some drawings there, and it is possible a truck drawing is among them. I'll check that myself when I get the time. . .

Richard,
Some great scale line drawings of locomotives with AAR type b trucks are posted here:
http://trainiax.net/index.php
http://trainiax.net/drawings/36-ge/u-b/r36-ge-u23b-cr-ph2h2.GIF

Mike Tillger

Guys- Thanks for your fine efforts. Now you see what I'm having difficulty finding! The locomotive black line drawings are only somewhat useful, and yes, I've been through tons of them. I've actually referred to the drawings in the ALCO locomotive manual for the C420, C424, C425, ut what I really need is a diagram of the truck itself, the truck exploded, the illustration or plan. One would think such a popular truck would be easy to find, but I can't find it anywhere. I'm n internet research hound of sorts, so this was my best hope.
If somebody finds it, or has a copy, a scan posted publicly would be a huge contribution to the hobby.
Thank you, everyone!