Frejght Car Truck Classification

[fifedog]

First off ---> .

AAR - Association of American Railroads

There are 3 general styles of RR truck sideframes (that we as modellers should keep in mind).

archbar - A common early century design.  Some of these lasted under MOW and caboose fleets.

Bettendorf - middle century design.

roller bearing - most modern design that you will see trackside today.

[cmzmijewski]

 What is an AAR type or 7a truck?

Chester Zmijewski

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