PCM Y6b question

[nw-modeling-list at nwhs.org]

Frank,

By the time the Y6b's were built Worthington had stopped production of the
larger size BL feedwater heaters (sometime before 1947, they are not in the
locomotive cyclopedia).  The SA's were the only units available.  They were
more efficent than the BL's.

On 6/5/06, nw-modeling-list at nwhs.org <nw-modeling-list at nwhs.org> wrote:

>

> ...

> The use of SA feedwater heaters on Y6bs must surely have been not merely a

> question of aesthetics - although it certainly did (in my opinion) improve

> their appearance. On many railroads, BL feedwater heaters were apparently

> confined to smaller locos, suggesting that they were not as effective as the

> SA type on large locos such as the N&W Ys. Perhaps had steam lasted longer

> on the N&W, Y6s and Y6as would have been altered to SA heaters?

>

> Any comments or information on these matters?

>

> Frank Hung

>

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