Re: Kadee minimum body box widths

Rich Yoder

My quick measurement shows a Kadee at 7/16
The standard Draft gear box that I sell are 5/16 and I'm sure that could
be narrower. If you can find one of my USRA Gondolas those were even

Sincerely, Rich Yoder
7 Edgedale Court
Wyomissing PA 19610-1913
610-678-2834 after 6:00PM est until 10:00PM

-----Original Message-----
From: [] On Behalf Of
David Lehlbach
Sent: Saturday, February 21, 2009 8:49 AM
Subject: [STMFC] Kadee minimum body box widths

Has anyone on list ever done math to determine the minimum Kadee coupler
box width needed to adhere to 18" radius curves yet allow use of Kadee
couplers?  I know there are a series of variables, but an enterprising
engineer could figure that out - Mr Storzek?

Variables I can think of:
- what car is coupled to
- length of car
- distance from Kadee pivot to truck center
- distance of Kadee shank

With the Kadee whisker couplers, box widths could become more narrow. 
Of course, the pivot point being so far back with long shank precludes
using significantly smaller boxes which is why Accurail designed a new
coupler box with shorter shank.  Another concept is the option of a
shorter shank Kadee whisker I suppose.

I noted Jon Cagle's Southern Car & Foundry Standard tank cars have nice
narrow boxes and use of Kadee whiskers.

Any mathmeticians out there?

David Lehlbach

[Non-text portions of this message have been removed]


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