Jonathan -
The F-3As, 350-354, did not have Rushton trailing trucks, as did the heavier F-
3Bs and F-3Cs, 370-375, based on the Q S-3 class - or the USRA type, as
suggested by one lister. The F-3As shared the unusually large trailing truck,
full width and length of the firebox, that was found on the S-1 and S-2
Pacifics, the class R Prairies, and the P-2 through P-5 Atlantics, including
the rebuilt P-3C which became P-6. I am using Bernard Corbin and William
Kerka's Steam Locomotives of the Burlington Route and Hol Wagner's The
Colorado Road. I do not recall seeing this type of trailing truck on any
other road's locomotives and wonder if it was unique to the Q system for some
reason. Only these passenger engines had the trucks, as the O-1 Mikados,
built beginning in 1910, had Hodges trailing trucks.
Yes, I am a "rivet counter" and am trying to make this model as accurate as
possible. One other route is to scratchbuild the truck, but I cannot find
plans for the S-2 in Corbin's book, which does have the S-1 and S-3 plans.
Does anyone know of detailed plans for the Q S-2 as built in any publication?
- John Manion
Denver, CO
> John --
>
> I don't know about the Rushton (outside-frame) trailing truck, but I can't
> believe somebody doesn't make'em. If not, you should be able to pull one
> off a non-brass engine of some sort.
>
> You also may want to replace the drivers (if that's possible). The C&S
> F-3As had 69" (vs. the S-2s' 74") drivers. Maybe it's not a big difference
> (only 1.5 mm in HO), but if you study the C&S engines, you might decide the
> slightly lower drivers do in a subtle way constitute part of the character
> of those Pacifics.
>
> Of course if your reason for wanting an F-3A is simply because you're
> modeling the C&S or the CB&Q in Colorado, you certainly can get away with
> keeping your 4-6-2 an S-2. Otto Perry has lots of pictures of S-1s and S-2s
> in and around Denver. I'm sure they ran on the C&S from time to time.
>
> Jonathan
>
> I have recently acquired an LMB S-2 4-6-2, and it is a smooth runner and
> relatively quiet, despite the outside-frame motor. My only concern with this
> model is that it is equipped with a Delta trailing truck. I would like to
> model the C&S Class F-3A series, #350-354, converted to oil burners by 1947
> and equipped with the Elesco FWH of the LMB model. The C&S engines retained
> the original outside-frame trailing trucks of the S-2s. Is anyone aware of a
> model of this trailing truck or parts to make one? Has anyone done this type
> of truck and have any advice on how to do it? Thanks for any help on
> converting this fine model to a C&S prototype.
> - John Manion
> Denver, CO
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