Was there ever a NG SW1 or 1200?

[BClemens]

Hello,
Not 'live steam' per se but: Was the SW 1, 1200, etc. ever produced for use on a 3' narrow gauge system? And: where can a set of basic dimensioned fabrication drawings be found for the same standard gauge locomotive?
bc

[SPSteam2491]

Drawings for the SW1 and SW1200 can be found in the Diesel Locomotives Cyclopedia. With an HO scale ruler, enough dimensions can be taken to build a model. Additionally, the February 1992 Mainline Modeler Magazine has drawings for a SW1 and the August 1983 magazine has drawings for a SW9 (which is very similar to the SW1200).

[Glenn Brooks]

Not a 1200 but the Hawaii Railroad Society has four center cab road switchers in 36 ga. All ex-Navy motive power, originally made for the Pearl Harbor Naval Shipyard Railroad. Built during WW2. All are Whitcombs, I think. Maybe one or two are GE, just not sure.

Can’t post any pics just now. Intrnet ??? incapable of uploading apparently. Latter perhaps...

[K. Browers]

Good afternoon,
While not a GM locomotive the South African Railway two foot gauge diesels have an older style car body. Built as Two foot gauge engines I am sure they could be adapted to 2.5 inch scale a few were fitted with 42 inch gauge trucks.. But just think how they would look in 3.75 inch scale

https://en.wikipedia.org/wiki/South_Afr ... ass_91-000

Cheers, Happy modeling
Karel

[Glenn Brooks]

Side view of #302. (44 ton Whitcomb)Just arrived back in Hawaii at the Ewa yard, earlier today, after a mainland rebuild and repowering.

[Pontiacguy1]

Those two locomotives don't look alike to me. Are they supposed to be the same builder/model?

[Glenn Brooks]

302 in the last photo is a whitcomb 45 toner. The first photo is 65 ton. I’ve asked about the builder of the first loco, as Iam not sure - might be a GE... should know in a day or two .. we had to come back to Wash early, so followup is by txt, and Hawaii finally went on lock down yesterday or today.

OK, some followup Notes: the first engine is indeed a Whitcomb 65 ton road/yard switcher. It’s definitely a bigger engine, with different center cab arrangement. Also the Smaller Whitcombs had end grills. The 65 toners did not. Here’s a pic from February, this year, showing the inspection report: showing manufacture date of 1944 by Whitcomb.

To clarify, the smaller 302, second photo, and a sister engine (not pictured) are classified as 45 ton locos, whereas the same loco on the mainland is classed as a 44 ton engine. This had something to do with WW 2 weight classification for railroads, AND union rules. USN railway equipment at Pearl Harbor were operated by naval personnel, so they were listed and operated at full factory capacity. mainland RR labor agreements set a manning cutoff at 44 tons. Hence most on line references call these locos 44 toners, when in fact they were capable of 45 ton classification.

Glenn

[mspetersen]

EMD likely had something similar as an Export model.

[NCBQGUY]

To actually answer your question, No. EMC / EMD did not build any domestic narrow gauge locomotives. There were Canadian units that used what look like GP7 body styling or components for the Newfoundland NG. Some export models used in Mexico and elsewhere in the hemisphere similarly had SW body components and rode on what look like gearboxed freight car trucks.
EMD and ALCO built roadswitchers for the Army with variable gauge trucks and one was trialed on the D&RGW. GE, Whitcomb, Davenport and others built all sorts of “critters” for NG.
Charlie Vlk

[BClemens]

'Thanks for all the data. The MR "Diesel Locomotives" was ordered and being studied - good advice. A small switch or transfer 'diesel', using hydraulics is what we are leaning toward. The RMI Transfer Locomotive is ideal but we wish to construct the locomotive - but as things are, it would probably be cheaper to purchase.
bc

RMI Photo:

[rkcarguy]

NG is limited to the D&RGW X-1 and similar, or the 44 Tonner and other similar locomotives like Glenn posted.
What is your goal? Wider train on 7-1/2" gage tracks?

[0351]

Southern Pacific’s GE 50tonner #1.
George Town used to have a couple of GE 52ton U6B’s.
DRGW had a Davenport 30 tonner.