Ted Doskaris noticed some of the requirements for Kadee couplers on higher stress applications, notably locomotives.

I believe this was coincident on discovering the advantages of center-set couplers and the benefits of better control of the coupler height itself.

He designed and comissioned the manufacture of a coupler box made from aluminum that is similar to the Kadee #911 coupler box (the old 831 type).

He has several vignettes on this.

This first link is the design and creation of these aluminum coupler boxes:

http://www.elmassian.com/trains/ted-doskaris-vignettes/custom-kadee-coupler-boxes-for-aristo

 

Here's the application on a USA Trains GP38:

http://www.elmassian.com/trains/ted-doskaris-vignettes/usa-trains-gp-38-kadee-a-various-mods

 

 

 

Weather Underground PWS KCACARLS78