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HO Scale Freight Car
PRR X31 40 Foot Round Roof, Single Door Box Car


History:  The PRR CLASS X-31 box cars had a novel roof design named the "round roof" or "wagon top". By curving the roof sheets to meet the eave bar vertically (leaving a 4" inset on the edge) the cars had an inside height of 10'. The X-31's were used primarily to transport new automoblies or auto parts. The majority of X-31's are in the X-31, X-31A, X-31B and X-31C sub classes. These classes had very minor external differences. The X-31's were first built in January 1933. In 1935, the roof of the X-31's was redesigned, with a new inside height of 10' 5" in the center and 10' 0" at the sides. The external appearance changed with the roof sheets overlapping the side sheets at the eaves. This gave a flush apperance to the roof as compared to the inset of the original design. By 1936, the single door X-31A had replaced the X-29 as the general service box car. The X-31's were used on the Pennsy throughout the 1940's, 1950's, and the mid 1960's. The following X-31's were in service: 8,574 cars in 1936; 10,496 cars in 1939; 9,786 cars in 1944; 9,702 cars in 1953; 9,522 cars in 1960; 1,038 cars in 1968. The Seaboard purchased 1200 double doorcars and 500 single door cars in the 1940's, the Detroit Toledo and Ironton purchased 400 double door cars in 1937 and the Norfolk and Western purchased 300 cars double door cars and 1300 single door cars between 1936 & 1939. In the late 1940's the DT & I sold all its 40' round roof cars to the Northern Pacific. Later the cars were sold to Manufacturers Railway and Detroit and Mackinac.

The history of the Pennsylvania Railroad rolling stock lettering is as follows:
January, 1930 Circle Keystone Lettering was applied.
June, 1954 Shadow Keystone lettering was applied.
July, 1956 Plain Keystone (black car) was applied.
Early 1960's PRR Initials started.

Kit Includes:  injection molded plastic body, doors, roof walk, brake wheel, X2f couplers, one piece molded (coil semi-elliptic spring) trucks and 33 inch chilled wheels with RP-25 flanges on brass axles. MADE IN USA.  Our model is a prototype Pennsylvania X-31A class box car kit with INSET and FLUSH ROOF. The production molds were made using the original PRR drawings as our guide.

Ordering:  You can order any quantity. Different road numbers are available indicated by the following keys in the "Description": we have 3 road numbers available if the first letter is a plus sign [+] and we have 12 road numbers if the first letter is an asterisk [*] .

Listing of Available Models and Associated Car Numbers:  The list below identifies the cars and roadnames that are currently available.  Underlined part numbers have pictures available for you to see on-line by clicking on part number.  Please note that each production run of a roadname uses a new series of car numbers.  We do not re-use a previous numbering series for any subsequent production run.  Thus, we only can fill orders for the most current production run and associated numbering series.   Please refer to our list of PRR X31 40 Foot Round Roof, Single Door Box Car car numbers that have be used and the current numbers which are available.

Part #DescriptionPrice
1-55300  40 RR Inset Single Door Box Undecorated * n.a.
1-55301  *40 RR Inset Single Door PRR X31 Circle Keystone * n.a.
1-55302  +40 RR Inset Single Door PRR X31 Shadow Keystone * n.a.
1-55303  *40 RR Inset Single Door PRR X31 Plain Keystone * n.a.
1-55304  *40 RR Flush Single Door BOX SAL Silver Meteor * n.a.
1-55305  *40 RR Flush Single Door BOX N&W * n.a.
1-55306  *40 RR Inset Single Door PRR Compant Service * n.a.
1~55325  12 DIFFERENT Nrs 55305 * n.a.
1~55326  12 DIFFERENT Nrs OF 55306 * n.a.
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