Re: Round roof double door boxcar
Johannes,toggle quoted messageShow quoted text
I believe that you are tripping over some vocabulary.
Round roof - this metal roof section was developed in the 1930s and applied to new steel boxcars that were built in that era to maximize clearance fits. The biggest user was the PRR, as witnessed by their X31, X32 AND X33 series cars. The PRR did apply a few to older cars, such as the X23, to generate the X23B. The DT&I built “clones” of the PRR’s X31B and the Northern Pacific will lease 335 DT&I 40’ dd flush roof cars circa 1961, one year in the future for this list.
Radial roof - this roof section, first built in wood and then metal, describes a gentle arc and was used for many cars, from many roads, beginning in the very early 20th century (or maybe even much earlier… not my area of knowledge). This was a very common roof style on the Northern Pacific and is almost certainly the roof style that you are referring to on this truss rod car (not “round roof”) and definitely NOT referring to the ALL STEEL CAR described in the post to which you were responding.
Bruce F. Smith
"Some days you are the bug, some days you are the windshield."