Big Macs coming to MMA?

Discussion of present-day CM&Q operations, as well as discussion of predecessors Montreal, Maine & Atlantic Railway (MMA) and Bangor & Aroostook Railroad (BAR).

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Re: Big Macs coming to MMA?

Postby fogg1703 » Mon Aug 20, 2012 12:11 pm

So are they still in Derby?
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Re: Big Macs coming to MMA?

Postby MEC407 » Thu Nov 01, 2012 6:23 pm

Anyone? Bueller?
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Re: Big Macs coming to MMA?

Postby necr3849 » Thu Nov 01, 2012 6:35 pm

As of mid-September, at least two were still outside the complex at Derby. Sorry no pic(s) this time. It didn't look like they were going anywhere soon.
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Re: Big Macs coming to MMA?

Postby MEC407 » Thu May 02, 2013 10:53 am

The four SD90MACs are now listed for sale on the Ozark Mountain Railcar web site: $130K each, which I suspect is not a whole lot more than scrap value.

8534: http://www.ozarkmountainrailcar.com/det ... C-8534-NEW

8542: http://www.ozarkmountainrailcar.com/det ... C-8542-NEW

8555: http://www.ozarkmountainrailcar.com/det ... C-8555-NEW

8560: http://www.ozarkmountainrailcar.com/det ... C-8560-NEW
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Re: Big Macs coming to MMA?

Postby MEC407 » Thu May 02, 2013 11:52 am

ShortlinesUSA wrote:The MACs are coming to Derby for rebuild. Will not leave as scrap. Any info past that is mum, as part of a proprietary deal.


That deal fell through, I take it...?
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Re: Big Macs coming to MMA?

Postby fogg1703 » Thu May 02, 2013 8:34 pm

So what has done these beasts in; unreliability, cost, weight, repairs too costly? MMA's power woes of a couple of months ago before the CP and CITX units came on property would have seemed like an ideal time to turn these units loose on the Moosehead with crude tonnage. They can't be that much different than the Mac's VTR is running on their less than beefy lines.
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Re: Big Macs coming to MMA?

Postby MEC407 » Fri May 03, 2013 10:41 am

I've heard (and seen video) that the SD90MACs had/have a pretty bad problem with "hunting" -- side-to-side motion when operating at normal track speeds. For whatever reason, this doesn't seem to be nearly as much of a problem with the other Big Macs (70 series and 80 series). I'm not sure if it's a problem at lower speeds (less than 40). This UP SD90MAC was hunting pretty badly: http://youtu.be/IAKhgr9pzH8?t=1m

I think the various gremlins in the H-engine 90MACs are the bigger problem, considering that UP still owns and uses their "convertible" 90MACs (with 4300 HP 710s under the hood), as seen in the above video, but quickly got rid of the H-engine units (as did Canadian Pacific).

The weight doesn't strike me as being too much of a problem, and the size/length is somewhat mitigated by the radial trucks... but, again, the hunting certainly can't be great for track, especially track that isn't in excellent shape to begin with.

I'm now hearing rumors that these four units at Derby were/are owned by Ross Rowland, who (according to Wikipedia) is involved in the rail preservation field. Perhaps Mr. Rowland acquired the units, sent them to Derby for repairs/rebuilds, but then something came up and the project had to be canceled. Just guessing/speculation on my part.
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Re: Big Macs coming to MMA?

Postby CN9634 » Fri May 03, 2013 1:15 pm

I'm not sure if Ross owns them or not but he wasn't the project lead.
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Re: Big Macs coming to MMA?

Postby MEC407 » Fri May 03, 2013 1:31 pm

CN, can you tell us what the "project" actually is (or was)?
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Re: Big Macs coming to MMA?

Postby CN9634 » Fri May 03, 2013 2:24 pm

Welllllllllll its a long story but a notable engineer up here was looking to convert them to natural gas or gas turbine units as a new green locomotive but let's just say the funding was spotty and inconsistent. The units never belongs to the MMA, they were really just a contractor/landlord for the units.
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Re: Big Macs coming to MMA?

Postby MEC407 » Fri May 03, 2013 3:07 pm

Interesting. Thanks. :)
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Re: Big Macs coming to MMA?

Postby rovetherr » Tue May 14, 2013 5:36 pm

MEC407 wrote:I've heard (and seen video) that the SD90MACs had/have a pretty bad problem with "hunting" -- side-to-side motion when operating at normal track speeds. For whatever reason, this doesn't seem to be nearly as much of a problem with the other Big Macs (70 series and 80 series). I'm not sure if it's a problem at lower speeds (less than 40).


I have seen this on the 90's that we have here on the VTR, I use a term to describe it taken from the Volkswagen community, the "Death Wobble". When the engines are pulling, and/or on welded rail. it doesn't seem to be very noticeable. However, on bolted rail if the engines are coasting, or not pulling hard it can become quite pronounced. The CEFX 130 was quite bad in this respect, one of the hardest riding engines I have ever operated actually. The 125 is a close second. The 105 seems to be the better riding unit of the three. I haven't had a chance to get it up to 40 yet, but at 25 on bolted rail it rides and tracks fine.

When they work, they are great units. They pull like nothing we have, the dynamic brakes are mind boggling good compared to our 40 year old 40's and 38's, and they actually have AC! However, they are quite unreliable. Not mechanically, but they seem to have lots of computer and sensor issues. I would imagine that the units on the MMA are no different, especially since they have been sitting, these units do not respond well to that. We cut our fault issues by at least 1/4 by using the units regularly.
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Re: Big Macs coming to MMA?

Postby MEC407 » Fri Nov 22, 2013 1:54 pm

Does anyone know the current status of the ex-UP SD90MACs stored at Derby? They had been listed for sale on the Ozark Mountain Railcar web site for quite some time, and then a few months later Ozark changed it to an auction listing. That listing is now gone, so I was wondering if anyone bought them at the auction. If so, it would be interesting to know who the winning bidder was and how much they paid.
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Re: Big Macs coming to MMA?

Postby CN9634 » Fri Nov 22, 2013 2:08 pm

They sit at Derby, all four are for sale. $130K each.
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Re: Big Macs coming to MMA?

Postby MEC407 » Fri Nov 22, 2013 2:57 pm

Interesting. That sounds like they didn't get any bids at the auction... or perhaps they had a reserve price which wasn't met by any of the bidders...?
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