Modeling a KRL 304 Type FM Heavy Duty 10-axle flatcar in O scale (three rail)

This O scale model is a 10-axle flatcar which is based on the KRL 304. This model is identical to the prototype KRL 304 except it has been modified to create a 10-axle version. Otherwise the overall dimensions of the model are identical to the 12-axle version. MTH 2-axle and 3-axle trucks were used on the model.

This model has a 11-1/4 inch platform length and an overall length of 17 inches.  A special feature of the model is the use of articulated truck bolsters which allow the car to operate on small radius curves. Because each truck is allowed to shift side to side the car can operate more smoothly through turnouts and yards. The model also features a low center of gravity for additional stability.

 

KRL 12- AXLE FLATCAR WAS WESTINGHOUSE WECX 304

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Last edited by pro hobby
Original Post

Here are model photos of the original 12-axle version of the KRL 304 model and the modified 10-axle version for comparison. The deck is identical for each car. However the truck bolsters are not the same for each car due to truck spacing variations.

KRL 304 12-AXLE TYPE FM FLATCAR O SCALE MODEL [4)

KRL 304 10-AXLE VERSION

 

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Last edited by pro hobby

Hello PRO HOBBY......

Was there such an model of Pennsy's ultra heavy duty flat car that uses 4 eight wheel trucks.  The trucks were from the 16 wheel tenders used on Q-2,Q-1, S-2, S-1, J-1a and some I1sa steamers.  I could not find much information on this depressed flatcar but saw the photo of it that was place in park.  I don't know where the photo was taken and or where I saw that picture ? Would you happen to know the specs of that flat car ?

Tiffany

Tiffany,

That would be the Queen Mary and it is located at the Railroaders Museum of Pennsylvania in Altoona.  If you Google Rob's Pennsy Page he should have a drawing there.

Gene Anstine

Originally posted by GRFD59:

That would be the Queen Mary and it is located at the Railroaders Museum of Pennsylvania in Altoona

 

I thought the "Queen Mary" was an Observation car now part of some office structure in Wayne, NJ.?

Anyway, in an answer to the second poster's question, there were two prr flats with those massive trucks:

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