Lightweight Car Body types?

This is a small section of the Daylight Pullman car body.  Aluminum extrusions have been done by Speer (shown) and Sunset.  Brass built-up versions were done by Pecos River in 2-rail.

This is an excellent photo of the Kasiner extrusion, showing the NYC-style Pullman corrugations.  Note the significant differences between this and the Daylight car body.

The photo is courtesy of the DeBruins of Dallas and Atlanta.  This style extrusion has also been done by CRC, K-Line, and possibly Sunset.  Pecos River has done it in brass for ATSF, and I can get a photo of that when I shoot the  Budd extrusions.

K-Line used this style for their Daylight cars - beautiful cars, but wildly incorrect.  Sunset did it a lot better.

My interest has been piqued by Delbridge's "Hollywood" thread.

Bob, the Kasiner extrusion looks a lot like the ACF cars.  Here's a photo of SAL ACF 6-Bedroom Buffet, Lounge car:

Seaboard had 3 of these I know of, Red Mountain, Stone Mountain, and Kennesaw Mountain.  Southern also had ACF cars.

more later!

Atlantic Coast Line, FEC, and RF&P also had ACF 6 Bedroom, Buffet Lounge cars too.  From what I see the roofs were smooth, the sides had "large" fluting above and below the windows, and small fluting on the skirts.

ACL and PRR had ACF 14 Roomette, 2DR Sleeping cars.  FEC also had 14 Roomette, 2 DR Sleeping cars from ACF but the roofs on them have lateral ribbing.

I believe ALL these ACF cars had lateral ribbing, just can't see it in most of the photos.  The ribbing is plain to see on cars with stainless steel roofs, but on cars with black roofs it's hard to see.

I'm also seeing ACF cars that are smooth on all the surfaces.

I'm using "The Passenger Car Library, Volume 6" book by W. David Randall as a reference, it covers cars belonging to: ACL, FEC, SAL, SOU, C&EI, CofG, GM&O, and L&N, with RF&P and PRR lookalikes thrown in.

I imagine Pullman, Budd, and ACF pulled their collective hairs out trying to please all the RRs that wanted these cars.  SALs Pullman 10-6 sleepers were ordered with Budd roofing to match the cars ordered from Budd...Pullman said afterwards "Never again!!!".  Pullman had a hard time shot-welding from what I recall and their roofs started buckling, Budd must have had the procedure down to an art.  Here's a blurb on the NEB&W website that kind of explains things:

http://railroad.union.rpi.edu/...eight_Passenger_Cars

Really nice article - answers your diaphragm question.  I think, but am not sure, that the Cor-Ten steel was used on the corrugated outside panels on Pullman cars.

For a good photo of two different Budd extrusions, see that other forum.  My lighteight car thread died a violent death, then got resurrected.