Hi Tom:
Thanks for asking. There are two current resources for U23C; a resin shell from PNW resins, and a fully running unit from Frateschi (made in Brazil, but with an incorrect pilot, foreign couplers, and too narrow of a hood width). I have the Frateschi unit....but am going to use the PNW resins shell on the Atlas frame. Yes, I am planning to have the truck sideframes 3D printed, with the rear mounting tabs. Is the sideframe difficult to remove from the stock unit? I have not done so yet.
Happy to share photos and progress of same if you desire.
Chris
Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message -------- From: "Tom Mack via groups.io" <thommack=yahoo.com@groups.io> Date: 1/9/21 9:16 AM (GMT-08:00) To: CBQ@groups.io Subject: Re: [CBQ] CB&Q U23C truck inquiry
I'm definitely interested in following your project. Few people realize just how rare U23C's were - only 53 built for North America - 20 ATSF, 9 CB&Q, 5 LS&I, and 19 PC. So I doubt we'll ever see a U23C produced by one of the model manufacturers. That being said, they externally resemble the U30C, except they have fewer engine access doors. What are you using as a basis for your model and what else have you found to be major differences (other than the engine doors) between the CB&Q U23C's and a U30C?
Also, in regard to the trucks, if you are using an Atlas U30C frame, for example, are you planning to recreate the standard mounting tabs on the back of the truck side frames so they can easily replace the existing side frames of you base locomotive?
--
Tom Mack
Cincinnati, OH
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