O3R Dimensional Coupler Height Standard?...Is there such a thing?

dkdkrdOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Sure to be embarrassing...

Coming from 'The Dark Side' (HO/N/G) I'm familiar with NMRA dimensional standards for such mundanity as coupler height above the rails...top, bottom, centerline...whatever.

I'm befuddled to find no such dimensional definition in the O3R realm. I thought it would SURELY be in Greenberg's repairs bible. No such luck among the several editions gathering dust on my shelf.

I know, I know...you just check it against another car/engine...right? But what if that 'standard' is...wrong? I mean, we all have experienced the variations; some are rather sturdy in their vertical attitude. Others?...rather floppy, limp, droopy, etc., etc..

So what did the various designers use as the de facto standard, if not published somewhere??

Just thought I'd ask.

OK. Embarrass me. I'm ready!

10/3/225:02 PM

Original Post

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