A class and Lightweight rods

[NW Mailing List]

Bud,

Thanks.  Other than the increase in labor and materials was the roller rods
the only cause of the increase in cost?

John Rhodes

On Sat, Dec 12, 2009 at 9:56 AM, NW Mailing List
<nw-mailing-list at nwhs.org>wrote:


>  John,

>

> The railway listed the 1235-37 costing $277,564.00 each; the 1238-42

> $300,404.00 each.

>

> Bud Jeffries

>

> ----- Original Message -----

> *From:* NW Mailing List <nw-mailing-list at nwhs.org>

> *To:* NW Mailing List <nw-mailing-list at nwhs.org>

> *Sent:* Friday, December 11, 2009 3:32 PM

> *Subject:* Re: A class and Lightweight rods

>

> Bud,

>

> Do you know the difference in cost between the last produced roller rod and

> non-roller rod Class A's?

>

> Thanks,

>

> John Rhodes

>

> On Fri, Dec 11, 2009 at 12:09 PM, NW Mailing List <

> nw-mailing-list at nwhs.org> wrote:

>

>> Matt,

>>

>> The last five A's when built, numbers 1238-42, were equipped with the

>> lightweight rods and reciprocating parts with roller bearing connections to

>> enhance long distance running. They were very successful and were built

>> primarly for troop train and passenger service, when needed.

>>

>> The Class J's were all equipped with this type of rods and bearings

>> allowing them to be assigned to Roanoke and dispatched to Norfolk and

>> Cincinnati on these runs with a minimum of servicing. The five A's could

>> perform similarly on extended runs on troop and passenger service. Beginning

>> in 1955 with the inauguration of time freights 77 and 78, these engines ran

>> to Petersburg and back to Roanoke, and also between Roanoke and Portsmouth,

>> without engine change.

>>

>> Official N&W literature stated that the Timken lightweight reciprocating

>> parts resulted in a weight reduction of 38 percent from the original type

>> used. The advantages listed was greater reliability, increased availability,

>> lower roundhouse maintenance cost, reduction of hammer blow on the rails,

>> and longer runs without lubrication servicing.

>>

>> The only other modification required was the counterweights on the driving

>> wheels had to be changed. There was an increased cost to build these five

>> A's when compared to the three A's built at the same time using conventional

>> rods.

>>

>> Bud Jeffries

>>

>> ----- Original Message ----- From: "NW Mailing List" <

>> nw-mailing-list at nwhs.org>

>> To: "NW Mailing List" <nw-mailing-list at nwhs.org>

>> Sent: Friday, December 11, 2009 8:40 AM

>> Subject: A class and Lightweight rods

>>

>>

>> Were the lightweight rods applied to the last A's a successful

>>> application? How was success measured and what was the business /

>>> operational reason behind it?

>>>

>>> What other changes to the locomotive were required to accomodate the

>>> rods?

>>>

>>> Matt Goodman

>>> Columbus OH

>>>

>>>

>>>

>>>

>>>

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>>

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>

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