[Accrs] Gunderson Twin Stack History

[Alameda County Central Railroad Society]

End cars have 70T (33” wheels) on the ends all others are 100T (36” wheels).



From: Alameda County Central Railroad Society<mailto:accrs at mail.accrs.org>
Sent: Sunday, January 22, 2023 1:48 PM
To: accrs at mail.accrs.org<mailto:accrs at mail.accrs.org>
Subject: Re: [Accrs] Gunderson Twin Stack History


Tony,



I have a number of different truck frames that I measure 5' 10" on the wheel base.  I think that is pretty standard.  The big question would be what weight, ie, 50 ton, 75 ton, 100 ton, etc were they using for the cars..



Dean

-----Original Message-----
From: <accrs at mail.accrs.org>
Sent: Jan 22, 2023 8:25 AM
To: ACCRS - All <accrs at mail.accrs.org>
Subject: Re: [Accrs] Gunderson Twin Stack History


Notice the intermediate trucks have 5’ 10” wheelbase – who makes a correct 5’ 10” truck in HO?



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From: Tony Long<mailto:tony.long at outlook.com>
Sent: Sunday, January 22, 2023 8:00 AM
To: ACCRS - All<mailto:accrs at mail.accrs.org>
Subject: Gunderson Twin Stack History

Okay, I finally found the wheelbase dimensions I was looking for regarding this cars in a very unlikely document.  It’s appears to answer my questions so will continue sketching this out.


https://apps.dtic.mil/sti/pdfs/ADA176892.pdf

There is a lot of information on the history and development of double stacks.   It’s worth reading section IV. DOUBLE-STACKS: PIONEER EFFORTS TO DEVELOPED NETWORK.


Cheers!
Tony


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