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Re: Snowplows

 by Allen Hazen ¦  Sat Nov 18, 2023 11:38 pm ¦  Forum: General Discussion: Locomotives, Rolling Stock, and Equipment ¦  Topic: Snowplows ¦  Replies: 4 ¦  Views: 294

Thanks for the further information! (I suspect that both the Green Mountain and (parts of) the MEC would have had more need of a "serious" snowplow than the Naugatuck (Grin!))

Re: Snowplows

 by Allen Hazen ¦  Thu Nov 16, 2023 10:09 pm ¦  Forum: General Discussion: Locomotives, Rolling Stock, and Equipment ¦  Topic: Snowplows ¦  Replies: 4 ¦  Views: 294

Thanks for the picture! Questions: Where did this piece of equipment start its career? Nowadays, what with global warming and all, it's hard to imagine a railroad in Connecticut needing this serious a plow (though maybe in places where, because of the way the wind blows around the landscape, snow ac...

Re: GM Aerotrain

 by Allen Hazen ¦  Mon Nov 13, 2023 6:24 pm ¦  Forum: EMD - Electro-Motive (Progress Rail, General Motors) ¦  Topic: GM Aerotrain ¦  Replies: 2 ¦  Views: 589

Skimming the article: interesting that the New York Central tried out "their" Aerotrain on the Cleveland to Chicago route: the Centra's staff, as railroad professionals, saw that the Aerotrain, with its low power and non-tilting cars, was suitable only for straight and level track.

Re: GM Aerotrain

 by Allen Hazen ¦  Mon Nov 13, 2023 6:19 pm ¦  Forum: EMD - Electro-Motive (Progress Rail, General Motors) ¦  Topic: GM Aerotrain ¦  Replies: 2 ¦  Views: 589

"Look" was a fine magazine, but hardly a technical journal: doubtless the powers that were at GM were happy to get a puff piece in a mass-circulation mag! Speeds over a hundred mies per hour are all very well and good, but don't translate into very short end-to-end times unless they can be...

Re: What would the PA-3 have been?

 by Allen Hazen ¦  Mon Nov 13, 2023 12:19 am ¦  Forum: American Locomotive Company - ALCO ¦  Topic: What would the PA-3 have been? ¦  Replies: 1 ¦  Views: 285

Hummm.... Look at the dates. The last PA (Dl-304D for the cabs, Dl-305D for the PB units) were built in 1953. The first 2400 hp Alcos, the (16-244 powered) Dl-600A, weren't built until October 1955. The Alco volume (volume 2) of Kirkland's "The Diesel Builders" cites two Alco documents, fr...

What would the PA-3 have been?

 by Allen Hazen ¦  Sun Nov 12, 2023 10:13 pm ¦  Forum: American Locomotive Company - ALCO ¦  Topic: What would the PA-3 have been? ¦  Replies: 1 ¦  Views: 285

Never mind the nomenclature. Alco didn't (it seems) care very much abut model names, and different Alco documents apparently disagree. The original "Diesel Spotter's Guide" used PA-3 for the last 2250 hp PA built (the ones without the drip strip" and porthole on the sides, and with ce...

Re: B36-7s and the GTA24

 by Allen Hazen ¦  Fri Oct 20, 2023 11:13 pm ¦  Forum: General Electric ¦  Topic: B36-7s and the GTA24 ¦  Replies: 2 ¦  Views: 409

Ummm. Change the verbs in the first sentence of my previous reply to plural: SSW had four of these test B36-7: they were the first four of an order for 30 B30-7. They are described (by Marre and Withers, "The Contemporary Diesel Spotter's Guide") as "test-beds" for the B36-7. And...

Re: B36-7s and the GTA24

 by Allen Hazen ¦  Fri Oct 20, 2023 11:03 pm ¦  Forum: General Electric ¦  Topic: B36-7s and the GTA24 ¦  Replies: 2 ¦  Views: 409

I believe the SSW unit was the first B36-7, and was very much an experimental/test/demonstrator unit: I think the idea was to try out GE's last technology, which would have included Sentry and, I assume, the GTA 24. But I'm not sure. The "package" with the GTA 24 would also, I think, have ...

Re: Help Needed Please!

 by Allen Hazen ¦  Sat Sep 09, 2023 9:48 pm ¦  Forum: General Discussion: Fallen Flags, Trolleys, and Interurbans ¦  Topic: Help Needed Please! ¦  Replies: 4 ¦  Views: 456

Observation platform on end of passenger "observation" car: not a caboose. The logo could also be read as "CB" -- I think the round letter his a C and not a G, and the order isn't obvious. Suggesting (to me) the Chicago, Burlington & Quincy railroad (someone else might know i...

Re: CN: 4-8-4 vs 4-8-2

 by Allen Hazen ¦  Mon Sep 04, 2023 10:17 pm ¦  Forum: Steam Locomotives ¦  Topic: CN: 4-8-4 vs 4-8-2 ¦  Replies: 11 ¦  Views: 1195

So, with reference to the "RME" comparative table and the idea that something of a revolution in American steam locomotive design came with the (Lima designed) New York Central H-10 Mikado and its greater superheater area, I said "So maybe I should do some arithmetic with the figures ...

Re: CN: 4-8-4 vs 4-8-2

 by Allen Hazen ¦  Mon Sep 04, 2023 6:25 pm ¦  Forum: Steam Locomotives ¦  Topic: CN: 4-8-4 vs 4-8-2 ¦  Replies: 11 ¦  Views: 1195

Sounds like the right period for the article I remember. I've got a poorly organized bunch of old indues of "Trains": I'll look to see if I have that one (and if I don't, will write to you to take you upon your offer -- thanks in advance!). -- Looking at the table of 4-8-2 from the 1926 &q...

Re: CN: 4-8-4 vs 4-8-2

 by Allen Hazen ¦  Sun Sep 03, 2023 5:46 pm ¦  Forum: Steam Locomotives ¦  Topic: CN: 4-8-4 vs 4-8-2 ¦  Replies: 11 ¦  Views: 1195

Thank you for your reply, putting at USRA "Heavy" 4-8-2 into a broader context! You (and Le Massena) may be right in pointing to the USRA engine a a possible ancestor of several later types. I don't know enough about the "culture" of locomotive design offices: maybe, at this late...

Re: CN: 4-8-4 vs 4-8-2

 by Allen Hazen ¦  Thu Aug 31, 2023 1:36 am ¦  Forum: Steam Locomotives ¦  Topic: CN: 4-8-4 vs 4-8-2 ¦  Replies: 11 ¦  Views: 1195

W.r.t. the original Rock Island 4-8-4, you say "It was bigger, I think, than the USRA Heavy 4-8-2 boiler." Yes. The USRA heavy 4-8-2 only had 76 (and some fraction) square feet of grate, but even allowing for the difference in firebox size between a Mountain and a Northern, its boiler was ...

Re: Pre-PRR question

 by Allen Hazen ¦  Sun Aug 20, 2023 1:08 am ¦  Forum: Pennsylvania Railroad ¦  Topic: Pre-PRR question ¦  Replies: 4 ¦  Views: 690

Allegheny Portage Railroad National Historic Site. (Thanks for the suggestion, Ex-Con 90!) It does have a website, but I've only glanced at it, not explored it yet. (It is the site I visited back n the early 1970s. I enjoyed it... Of course, the Altoona region has lots of other things for a person i...

Re: Standard gauge trucks for GE C36-7?

 by Allen Hazen ¦  Wed Aug 16, 2023 10:49 pm ¦  Forum: General Electric ¦  Topic: Standard gauge trucks for GE C36-7? ¦  Replies: 2 ¦  Views: 258

(1) Thanks for the photo! Traction motors would be the usual 752 model used on domestic (standard gauge) units: I think I can see, at the left end of the near axle, where the gears were set a bit inboard. (Russian gauge is ??? about 80 millimetres wider than standard, so a 752 motor won't fill the w...

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