My modeling focus is similar
My modeling focus is similar to the original poster and I've taken an interest in trying to find correct gondolas for late 1970's thur early 1980's as well. Prior to about 10 years ago, choices were much fewer than today. Also, it was harder to get information as less was available in the web so I relied on magazine articles in magazines like Modelrailroading and Rail Model Journal which did a lot of great articles and reviews.
I discovered back then that gondola's have been built in so many different styles and types and versions, that it was a challenge for a model manufacturer to offer a gondola that was correct for 2 or more road names and for the period of interest 1970's and 1980's.
Sure, there were the USRA gondolas like those made by Proto 2000 which manyh more railroads had, and those are very nice by the way and some still in operation by the end of the 1970's. So it's good to have some of those on the layout - but my guess is they thinning down by that date having been manufactured in the 1940's and would be pretty worn out by then.
There were articles about the Watlhers 53' and 65' and E&C shops 53' and 65' gondlos'. From memory:
Walthers 53' kit gondola (offered in RTR form now) - only correct for a class of Southern Pacific gondolas. Close to D&RGW class but rib spacing is not an exact match on the middle of the sides.
Walthers 53' kit corrugated side gondola - article didn't find any exact matches.
Walthers 65' kit gondola (offered in RTR form now) - correct for D&RGW and BN classes only according to article.
E&C Shops 53' corrugated side gondola - exact match for a class of Missouri Pacific gondolas and also correct for UP repaints. All others are at best, stand-in's.
MDC's 53' gondola is correct for Rail Gon I believe - not sure of other road names.
In the last ten years, a lot of new gondola options have been added by ExactRail and Tangent. Some are too modern for late 1970's and early 1980's from ExactRail, but here are some good ones:
- Gunderson 2420 correct for G-100-7 SP, but not all road names offered had them - be careful if that matters
- G-100-22 SP 65' gondola - only offered in SP - very nice and accurate and now sold out.
- Thrall 2422 15 panel gondola - check road names for correctness. Good visual match for Rock Island and repainted into CR.
- Greenville 65' gondola
Also see Tangent for a lot of very nice gondolas.
http://www.tangentscalemodels.com/view-buy-models/
Tagent has a lot less fantasy models than other brands although they have done a few alternerate reality paint schemes based on customer demain, and by fantasy, I mean models painted for railroads that never had that precise freight car. Highly recommend the PRR G43 series - I've picked up a PRR and a PC version for my 1980 +/- focus. There was a lot of them and some still in PRR paint into the 1980's as well.
Walthers has offered some newer tool gondolas that differ from their original kit 53 and 65 foot gondolas. I have compared them with my D&RGW cars and they are not exact, but close stand-in's based on thickness of the upper chord. I've noticed Walthers offering a series of corrugated gondolas that look a bit like the E&C and haven't researched their origin or accuracy yet.
It's not that difficult to find HO gondola models which are good for the late 1970's and early 1980's, the hard part is finding which are close matches to real gondolas because many models are painted for railroads that never owned them. This is true for ExactRail too. That shorty Gunderson 2420 is painted for roads that never had them so you have to do your homework if correctness matters.