Subject:
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Re: Canadian National SD40-2 Diesel Engine V2
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 10 Oct 2002 18:19:37 GMT
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Viewed:
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2911 times
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In lugnet.trains, Larry Pieniazek writes:
> In lugnet.trains, John Neal writes:
>
> > Anyone can build a choo-choo, and make it anything they want, and call it
> > anything they want. But if they decide to make a *certain* choo-choo, then
> > they must build in certain elements that are elemental to that certain
> > choo-choo. Wheel configuration is about as elemental a discriptor for a
> > locomotive as you can get.
>
> If it was anyone else posting the above I'd let it go.. or just post a "yep,
> well said" because most of the points are valid. BUT, since apparently J2 is
> identifying himself as a nitpicker, I have to point out that there is almost
> certainly a prototype for a 6 axle (as built locomotive) on 4 axle trucks...
> somewhere. It is not impossible to retruck something although it is a lot of
> work because of the wiring to the traction motors and the motor blower ducts
> etc, etc. that all need to get rerouted.
>
> But not all 3 axle trucks have 3 motors. Some are A1A trucks with an idler
> center axle and have only 2. I am pretty sure I've seen pictures of some
> loco originally built as an A1A-A1A riding on B-B trucks.
You're referring to the Seaboard Air Line ALCO RSC2's which were retrucked
from A1A-A1A to BB, I believe the Milwaukee Road did the same...
>
> As to WHY there are 4 axle and 6 axle units in the first place, it has to do
> with axle loadings, motor ratings (tractive force), the maximum traction
> that a single motor can transfer to the rails via a single axle and two
> wheels, and a host of other factors, although if the Canadians want to think
> it's because they're special, that's OK too. :-)
>
> ++Lar
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Message is in Reply To:
 | | Re: Canadian National SD40-2 Diesel Engine V2
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| (...) If it was anyone else posting the above I'd let it go.. or just post a "yep, well said" because most of the points are valid. BUT, since apparently J2 is identifying himself as a nitpicker, I have to point out that there is almost certainly a (...) (24 years ago, 10-Oct-02, to lugnet.trains)
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