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

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.

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: