NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby GP40MC 1116 » Tue Jan 13, 2009 11:12 pm

Lets hope someone actually replaces those T logo's with the real thing :wink:
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby MBTA3247 » Wed Jan 14, 2009 2:50 am

IMO, they'd look better in the paint scheme 3247 has.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby p42thedowneaster » Sun Jan 18, 2009 8:22 pm

Introducing the 3GS21B
Wow with a name like that...
Doesn't exactly have that nice familiar ring to it like F40 or GP40MC....and 3G just reminds me of cell phone networks! I guess "genset" will do.

Ah well aside from the name and the oversize "T" logo I really like it! Its the best thing I've seen from them since the GP40MCs!

Can they not pull a regular service commuter train with these?
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby tober » Sun Jan 18, 2009 8:48 pm

Indeed, "3GS21B" doesn't roll off the tongue, but the nomenclature makes sense - each unit contains three gensets. With respect to being able to pull regular trains - for one thing, they lack HEP. In addition, I believe they are not designed for and cannot continuously produce the power required for high-speed operation with a normal consist of coaches (and thus they are not "road switchers" and not replacements for the 3247). That said, I believe they can produce plenty of tractive effort at low speeds and will reasonably be able to handle any consist around the yards and for the Readville Switcher. I would guess that once the 3248/3249 have proved themselves, 904 will be retired.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby diburning » Mon Jan 19, 2009 12:16 am

904 might be kept for rescue power though
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby sery2831 » Mon Jan 19, 2009 9:12 am

The 904 will be sold once the Gensets have proved themselves.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby mbta1051dan » Mon Jan 19, 2009 9:39 am

It would be nice if they sold it to the Berkshire Scenic Railroad Museum :)
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby atsf sp » Mon Jan 19, 2009 12:05 pm

sery2831 wrote:The 904 will be sold once the Gensets have proved themselves.

But didn't it come back from rebuilding? Why would they sell it now?
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby diburning » Mon Jan 19, 2009 2:09 pm

Also, since the gensets aren't made to run a set of coaches and a dead engine at speed, then wouldn't they have less options for rescue power if a trainset dies on the road? 3247 would be the only rescue engine which would be a hassle to transfer it from the North side to the South side and vice versa. If there aren't any extra sets or engines to go rescue the dead set, then they'd be in trouble.

Would it work if they doubleheaded 3248 and 3249 and used that for rescue power?
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby tober » Mon Jan 19, 2009 3:16 pm

I don't think 904 can achieve track speed in most places while pulling a typical dead consist including locomotive - maybe 904 isn't even geared to allow 60mph. I'm pretty sure that it is already the case that one of the regular road engines is preferred over 904 for rescues on the south side. Further, I think but am not certain that 3247 isn't even allowed to go south because it's too tall. The new gensets are, I am quite sure, not capable of being trainlined for tandem operation, so, no, they could not be used together in the manner you suggest.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby sery2831 » Mon Jan 19, 2009 3:18 pm

atsf sp wrote:
sery2831 wrote:The 904 will be sold once the Gensets have proved themselves.

But didn't it come back from rebuilding? Why would they sell it now?


Parts and maintenance costs. It was rebuilt to get it to last til it was not needed. The rebuild also now is a great selling point for someone to purchase the locomotive.

The Readville switcher is supposed to get a Genset, and the North Side Work Extra is to get the other unit. The 3247 will be used in the yard at BET and for North Side rescues. The 3247 does not have any sort of cab signals, so it remains North no matter what. Don't forget about the 1116 & 1119 can be used for heavy duty switching and rescues. So I would expect to see one or both of those units South.

Lets keep this discussion to the Gensets, please. I don't want this to go off on a discussion about the 904!
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby diburning » Mon Jan 19, 2009 11:48 pm

tober wrote:I don't think 904 can achieve track speed in most places while pulling a typical dead consist including locomotive - maybe 904 isn't even geared to allow 60mph. I'm pretty sure that it is already the case that one of the regular road engines is preferred over 904 for rescues on the south side. Further, I think but am not certain that 3247 isn't even allowed to go south because it's too tall. The new gensets are, I am quite sure, not capable of being trainlined for tandem operation, so, no, they could not be used together in the manner you suggest.


Isn't 3247 the same height as a GP40MC?

Does anyone know what speed the gensets are geared for?
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby sery2831 » Tue Jan 20, 2009 2:15 am

The 3247 is probably lower than the GP40MCs since they had the cab roofs raised in the rebuild/mod for the T.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby ST214 » Tue Jan 20, 2009 3:40 am

I thought the GP40MC's had the cabs lowered?

sery2831 wrote:The 3247 is probably lower than the GP40MCs since they had the cab roofs raised in the rebuild/mod for the T.
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Re: NREX Switchers 3248/3249 Thread(New MBTA CR switcher rumor)

Postby GP40MC 1116 » Tue Jan 20, 2009 9:04 am

If the 3248/3249 are MU'ed they should work fine. I have seen images of the larger Class 1's who purchased some of these for service and at times they are uses as a duce set rather than just a single.
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