The K-3, Wha Might Have Been

[NW Mailing List]

The other K engines and the Ms had a long enough main rod that the stresses
weren't a problem.  Same wau with the J.  With the rear lead truck wheel
gave enough room to make the design practical.
The K-3 was the pm;u blot on the N&W's counterbalancing escutcheon.
When you look at the Y engines and how fast they could run without damaging
themselves or the track it's amazing.  The J might just have been the most
perfectly balanced engine ever built on this side of the
 Atlantic Ocean.  It was comfortable at driving wheel RPM of better than
500.
- Ed King

On Fri, Dec 1, 2023 at 11:24 AM NW Mailing List <nw-mailing-list at nwhs.org>
wrote:

> On 11/30/2023 9:04 PM, NW Mailing List wrote:
>
> > This doomed the K-3; shortening the main rod to connect with the
> > second driver  would have resulted in extremely h igh vertical
> > stresses on the crossheads and guides.
>
>      So, why wasn't this also a problem on the other K and M class locos?
>
> Jimmy Lisle
>
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