W.W.&F. Discussion Forum

WW&F Railway Museum Discussion => Work and Events => Topic started by: Robert Hale on January 06, 2017, 03:00:44 PM

Title: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 06, 2017, 03:00:44 PM
I thought that I could set a few personal goals that involves the museum this year and one is simple; become a lifetime member. The other is much more complex but I have been doing research for the last year as to what/how to accomplish this goal. I will try to start the drawings for W.W.&F. #s 54 & 55. I have been looking at the 1925-1940 era industrial switcher designs and trying to hypothesis what the RR would have done to have built or home-built for a possible transition/mixed use of non-steam locomotives if the RR lasted past 1933. Granted, the use of very common current day engines/drive train would be used to keep running costs down, but the sheet metal body would reflect the era's styling cues and operating routines. I know many might be reluctant to have such locomotives at all, but I see it as an opportunity to do something for the long term life of the RR/museum and keep it inline with a "what if" timeline, as well as providing a locomotive the is as heavy as the steam locomotives to serve as back-up power and use for work trains to save wear and tear on the more valuable locomotives in the collection. Please feel free to ask me anything, I am still drawing up the basics of the specifications. Also, I don't want to step on any toes by posting this, so if it is a bad idea or not welcome please let me know.
Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 29, 2018, 03:40:52 PM
Update: #54 & #55
I have decided on the gearbox/drive train layout, it will be similar to the Baldwin 600cm trench locomotive 0-4-0 gas-mechanical from WWI, just with it being double ended. Still researching off the shelf gears/bearings to minimize costs. Also developing the centralized control stand for bi-directional use. Will be diesel powered with common power plants. That is all.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Bernie Perch on January 29, 2018, 11:09:13 PM
Rob,

Why don't you study what the Mount Washington Cog Railway used to make their diesel-hydraulic locomotives?  I believe they used a standard power unit with hydraulic motors.  I know it was unsuccessful on the Southern Pacific and Rio Grande for various reasons, but on a small road like the WW&F it may be the simplest way to go.  I am not a mechanic, so this is just a "from the hip" suggestion.

As far as the aesthetics of the locomotive, make it look good . Design it with AAR type trucks with drop equalizers like passenger car trucks similar to  those used on road switchers.  The Durango & Silverton made a beautiful self propelled car and put it on what I feel was a very cobbled looking front truck made from an industrial locomotive.  It looked terrible.  Home made locomotives tend to look cobbled up.  Try to avoid that.

Bernie
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: John Kokas on January 30, 2018, 12:00:10 AM
I would suggest looking at a center-cab design with two engines.  Each one connected directly to its end truck.  The one advantage is if you have a road failure of an engine, you have the remaining one to get you home.  Think of a scaled down GE 44 tonner.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 30, 2018, 05:04:32 PM
I would suggest looking at a center-cab design with two engines.  Each one connected directly to its end truck.  The one advantage is if you have a road failure of an engine, you have the remaining one to get you home.  Think of a scaled down GE 44 tonner.
That is the idea. It would be a period correct (except for the power plant) "kitbashed" locomotive using surplus chassis from WWI, in theory (like a what if). Outside some custom shafts/gearboxes everything will be sourced from the light/medium truck industry to keep costs down and have a good supply of spares.
I'm going to hit this hard this year, getting my CAD program up and running since most of my VA stuff has closed out now. I have to call some vendors and contact some youtubers to get input into the gearboxes.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 30, 2018, 05:22:07 PM
Rob,

Why don't you study what the Mount Washington Cog Railway used to make their diesel-hydraulic locomotives?  I believe they used a standard power unit with hydraulic motors.  I know it was unsuccessful on the Southern Pacific and Rio Grande for various reasons, but on a small road like the WW&F it may be the simplest way to go.  I am not a mechanic, so this is just a "from the hip" suggestion.

As far as the aesthetics of the locomotive, make it look good . Design it with AAR type trucks with drop equalizers like passenger car trucks similar to  those used on road switchers.  The Durango & Silverton made a beautiful self propelled car and put it on what I feel was a very cobbled looking front truck made from an industrial locomotive.  It looked terrible.  Home made locomotives tend to look cobbled up.  Try to avoid that.

Bernie

I thought of that, but there are allot of issues with Diesel-hydraulic (pump/lines/motors/cooling/costs) and it would not be a period correct design. Using a mechanical design from the period of the early 1900's with a minor modification (using an automatic transmission/diesel engine) you could have a loco with good power and speed.
My goals are: ease of maintenance. That means common filters, belts, parts, spares, controls (pneumatic) with a minimum amount of custom parts (machined/cast/fabbed). I think the final weight might be in the 20-24k range. I thought it could be a viable solution for a robust locomotive for the RR for when steam is not running and save some wear/tear on #52, but look and feel period correct for the size of the line. More to follow.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Mike the Choochoo Nix on January 31, 2018, 01:21:24 AM
What are you using for wheels?
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Jason M Lamontagne on January 31, 2018, 02:09:17 AM
Hi Robert,

Am I clear in understanding that the extent of your project, at least at present, is to prepare drawings?  Anything more would require the board to review the plans and approve the project, even if materials and labor are donated, to ensure the resulting machine would be appropriate.  That said, the mental exercise your proposing, along with the resulting plans, sounds like an interesting project.

I can confirm that we are growing more interested in a 2-truck diesel locomotive.  52 is an industrial machine designed for slow speed and is ill suited for our main line use.  Above 6 or 8 MPH it’s hard on itself and track.  It (52) is also the reason we’re so restrictive on pony plow and snow flanger design.  Carpenter steel called them “dinky’s.”  They’re not meant for what the WW&F is all about.

We most likely would not build a 2 truck diesel locomotive from scratch; it’s too far outside of our mission to devote that many resources.  We’d likely try to locate an existing machine which requires rebuilding, in order to keep costs down.  We’ve thought of some alternatives including the use of two Plymouth dinky carcasses.

That said, if you develop some designs and drawings, it’d be great to see them!

Some helpful design hints: keep most weight on the chassis and off the truck frames.  Trucks should be as light as possible.  Prime movers should be standardized; either gen-sets or hydraulic power units depending on the transmission of choice.  Center cab with dual prime movers preferable.

  If we used dinky carcasses, we’d couple the two chassis together, as if double heading two 52’s, put floating center pivots on, a girder frame atop those- then two hydraulic power packs or gensets around a center cab.  Plymouth chassis would retain their final chain drive, and be powered by hydraulic or electric motors. Plymouth engine cowling and radiators used as is; new cab which would allow some custom styling. 

We’d also thought of regauging a 3-foot center cab, or semi-scratch building from a standard gauge carcass. 

When will this happen?  We have plenty of someday projects; it’s healthy to aspire.

See ya
Jason
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 31, 2018, 12:41:38 PM
Yes, I hope to have drawings sometime soon. Here is a link for some good photos of the Baldwin gas-mechanical I am basing the truck design off of. My idea is a blend of this locomotive and a Garrett steam locomotive. Everything that powers the unit except for the gearboxes, rods, wheels, counter weights, truck frames and brake rigging will be on the frame. That means cab, hoods, engines/transmissions, cooling systems, fuel tank(s), air tanks, batteries ect.
The only differences I plan between #53 and #54 is the engines. #53 will have the 6BT (12 valve with the non-computer fuel control) with single exhaust (turbo) and #54 will have the 6B with 6 individual stacks (non-turbo). I am trying to find out about the 45RLE transmissions if they have an aftermarket manual valve body for shifting to delete the computer and delete the reverse gear (reversing will be done in the truck gearboxes). Also, they do make larger capacity pans and the trans coolers will most likely triple the transmission fluid capacity.
I started to look at frame materials in the area of 7"x3" box 3/8" thick, 7/8" plate for frame gussets, and 1 3/4" plate for the truck frames. Handrails would be 7/8" rod stock. More to come.

http://www.rmweb.co.uk/community/index.php?/topic/82183-baldwin-gas-mechanicalmoelwyn-photos/


Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 31, 2018, 01:09:23 PM
What are you using for wheels?

Machined centers with tyres. Not sure of the size yet. Tapered roller bearings on the axles.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Bernie Perch on January 31, 2018, 01:51:49 PM
Rob,

If you are thinking of wheel centers with spokes, I made patterns for two sizes which are currently stored at the railroad.  Depending on the thickness of the tire or how much is machined off the center, you could go from a 18" wheel (like on the Model T railcar) to a 20" wheel (like on #11's lead wheel assembly), or even more with thicker tires.  With the larger center you could start with about a 31" wheel or larger depending again on the thickness of the tire.  I don't know if you are thinking this large a wheel, but it is remotely possible.  At this point I wouldn't offer making a mid size pattern because of the many pattern projects I have to complete and based on #11's time line, this project would be ten years away before it was physical consummated.

If you are thinking side rods and cranks with the larger wheel center, the patterns for the cranks are also made and in storage.

I have seen mine locomotives where the traction motor was mounted longitudinally between the axles with worm gears.  You could possibly use truck differentials with some of the gears removed for this.

Bernie
Title: Re: Personal goals for 2017
Post by: Robert Hale on January 31, 2018, 02:35:02 PM
Rob,

If you are thinking of wheel centers with spokes, I made patterns for two sizes which are currently stored at the railroad.  Depending on the thickness of the tire or how much is machined off the center, you could go from a 18" wheel (like on the Model T railcar) to a 20" wheel (like on #11's lead wheel assembly), or even more with thicker tires.  With the larger center you could start with about a 31" wheel or larger depending again on the thickness of the tire.  I don't know if you are thinking this large a wheel, but it is remotely possible.  At this point I wouldn't offer making a mid size pattern because of the many pattern projects I have to complete and based on #11's time line, this project would be ten years away before it was physical consummated.

If you are thinking side rods and cranks with the larger wheel center, the patterns for the cranks are also made and in storage.

I have seen mine locomotives where the traction motor was mounted longitudinally between the axles with worn (sp?) gears.  You could possibly use truck differentials with some of the gears removed for this.

Bernie

The gearbox design will operate in the same fashion as an outboard motor lower end; Forward/reverse/neutral. The gears will come from a Dana 80, two ring gears and one pinion 6:1 ratio. The outboard gears going to the lower shaft driving the side rods will be from the 2.5 ton Rockwell axle bull gear (4 per box). All fitted with tapered roller bearings. Short driveshaft to the transmission. If patterns are already made for counter weights and wheel centers, that does save allot of time. I will be emailing someone that could machine the gear box shafts and axles and contribute to their youtube channel content.
I'm trying to find the simplest solution to drive the wheels, and thus far this is the simplest I could come up with. It keeps the axles simple, the truck frames simple, the gearbox is accessible for oil changes, the transmission/engine pans are accessible for maintenance. It will also include two cast iron air compressors (one per engine) for the shifting/braking system. As far as vacuum brakes, I would need someone's help with that since I am not familiar with them.

Rob 

Edit: Thanks for merging the topics.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Ed Lecuyer on January 31, 2018, 02:37:42 PM
[Moderator's Note]
I re-titled this thread to reflect the topic at hand. I also moved it into the Museum discussion area, rather than the section reserved for non museum-specific topics.

That said,
I like the idea. The photos of the WWI era Baldwin the design is based upon show a really neat looking locomotive. Jason would be sure to love it - it is a Baldwin after all!
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on January 31, 2018, 03:43:34 PM
[Moderator's Note]
I re-titled this thread to reflect the topic at hand. I also moved it into the Museum discussion area, rather than the section reserved for non museum-specific topics.

That said,
I like the idea. The photos of the WWI era Baldwin the design is based upon show a really neat looking locomotive. Jason would be sure to love it - it is a Baldwin after all!

Yes, that is why I chose that set-up. Simple, period correct. Also thanks for merging the topics. Now that I have a clearer picture moving forward in my life (VA appointments done) this is giving me motivation to get the drawings done.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Roger Cole on January 31, 2018, 06:01:31 PM
Isn't there the remains of a 2-foot narrow gauge diesel in Portland.  I think it is being used as a parts source for Edaville's two other diesels from the same batch created by GE for the Whitin Machine Works.  It might be cheaper and easier to resurrect that hulk than build a totally new engine.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Jason M Lamontagne on January 31, 2018, 06:28:39 PM
Well- to be clear- I’m not a diesel fan, and don’t much care for the “what if” exercise.  However we need a main line diesel, out of necessity.

I want to reiterate- we likely will not build from scratch.  I don’t mind the design-from-scratch drawings which Robert intends to propose, as they’ll likely feed our net result.  I suggest, Robert, that you not worry too deeply about fine design details- esp mechanical- until you produce and aire a concept drawing.  As mentioned, it’ll probably morph a lot during the review process.

I’d like to see the Plymouth dinky idea drawn up- no time myself.

The third GE diesel at MNG is gone to another home, I believe.

See ya
Jason
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Mark Spremulli on January 31, 2018, 10:08:31 PM
Jason the wrecked diesel is at Edaville last I knew
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Bill Piche on January 31, 2018, 10:19:12 PM
Diesel 3\5 was sold back to Edaville a few years ago as part of MNG's effort to divest equipment that wasn't salvageable by the museum itself. This was done before they had to transfer ownership of the boxcars that are now in WW&F's and Boothbay's hands.

There wasn't much left except the frame. The prime mover and generator were shot. I believe that the traction motors were (if still in the wheel sets) shot. The wheels needed turning, and the cab was obviously crumpled and all the electrics long since gutted. I am unaware of it's disposition since returning to Edaville, but I wouldn't put it past them to have it rebuilt at some point to supply more power to backup the #2 and the other assorted critters.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Murphy Jenkins on February 01, 2018, 03:58:50 PM
In my personal opinion, If you wanted to go with an early diesel/gas mechanical design, I think a replica WWI Baldwin 50HP loco-tractor would be a great choice. These locomotives were sold all over the world after the war, and I'm honestly suprised that the Maine 2 footers never got any war surplus equipment. The locomotive could also be used to tell the story of trench railways, and their importance in the First World War.

Murphy Jenkins
Conductor A&M RR
Owner Frisco & Cherokee 2ft Gauge
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 01, 2018, 04:19:06 PM
While the Baldwin trench locomotives are cool in their own right, they would not solve the problem at the WW&F. What is needed is a locomotive with both power and speed, to allow it to be used to rescue a train and bring it home. It might be worthwhile to take a look at some version of the diesel locomotives manufactured in Australia for use on the still-extensive sugar cane network in Queensland. Using already-proven and functional mechanical designs, the sheet metal surrounding it could be customized to look like a 1930's gasoline or diesel unit.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: James Patten on February 01, 2018, 05:11:36 PM
Some of those Queensland sugar cane engines are really beefy for two foot gauge.  I was thinking we should try to get one used - but suspect that anything the plantations are parting with are things that have been beat down pretty well.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 01, 2018, 06:29:07 PM
While the Baldwin trench locomotives are cool in their own right, they would not solve the problem at the WW&F. What is needed is a locomotive with both power and speed, to allow it to be used to rescue a train and bring it home. It might be worthwhile to take a look at some version of the diesel locomotives manufactured in Australia for use on the still-extensive sugar cane network in Queensland. Using already-proven and functional mechanical designs, the sheet metal surrounding it could be customized to look like a 1930's gasoline or diesel unit.

If the museum needs such a locomotive then the South African GE U8 locomotives would fit the bill. Diesel electric with CAT 3208 power plants.
I'll do my best to present the my best design using modern power train components from the light/medium duty trucks of the day with a period correct design for the final drive (with modern parts) and keeping with the 1920-30s styling. The units would be scratch-built using laser/water CNC cut plate, rectangle tube frames, standard wiring, pneumatic brakes and controls, cab heater with a full enclosed cab.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 01, 2018, 06:55:13 PM
South African GE U8: way too heavy, way too wide. I was suggesting something along the lines of the attached photo.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 01, 2018, 07:09:43 PM
South African GE U8: way too heavy, way too wide. I was suggesting something along the lines of the attached photo.
I just read some info on the exact loco last month. It is diesel-hydraulic with a Detroit 12V92 engine and tips the scales at about 40 tons (I need to double check that number).
Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 01, 2018, 07:16:31 PM
I have asked an Aussie friend if he can round up drawings and specifications of something like this.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Roger Cole on February 01, 2018, 08:19:41 PM
I noticed mention of a South African diesel.  Sandstone Estates in South Africa has been collecting all sorts of railroad equipment as well as farm equipment, aviation, etc.  They supplied the Welsh Highland Railroad with a Garratt locomotive as well as several gondolas, so they do sell equipment on occasion.  The link below lists their rail inventory as of a few months ago.  Scroll down past the Cape gauge equipment to the 2-foot gauge stuff.  They have more equipment than needed for their excursion loop.  They have several 2-foot diesels--one of them was a GE.  They also would have some wheelsets as well. 

http://www.sandstone-estates.com/images/pdf/Sandstone_Stock_List_Nov2016.pdf
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: John Kokas on February 01, 2018, 08:39:51 PM
I believe we have several members who are from "Down Under".  There have been mill closures and some scaling back of 2' trackage over the last 10 years.  It might do us well to contact them and ask if they could make some inquiries or to at least sniff around on their local railway forums.  Never know what may turn up.

As far as South Africa is concerned - their stuff is probably too big/heavy for our track.  BUT!  I did not know they had a 2' BALDWIN 4-6-2 Pacific!  A possible engine #12 or 13?
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 01, 2018, 08:54:02 PM
The Baldwin 4-6-2 at Sandstone is currently under restoration, so I think that one's a non-starter.

One of my mates in Oz is president of the Light Railway Study Society of Australia, and I've asked him if he can look into surplus locomotives. But having said that, we next must consider the cost of shipping a locomotive from Queensland to Maine, not to mention the possible difficulties in securing parts for such a locomotive. If nothing else, however, having some drawings and specifications may be useful.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 01, 2018, 09:43:46 PM
Here are a couple of other Queensland sugar cane locomotives. These are in the 15-20-ton range and about 180 horsepower diesel hydraulics.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 02, 2018, 12:39:40 AM
Here are a couple of other Queensland sugar cane locomotives. These are in the 15-20-ton range and about 180 horsepower diesel hydraulics.

http://sa-transport.co.za/trains/sugar_cane_rail/eimco.html
This thing weighs in at 40 tons.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: James Patten on February 02, 2018, 01:09:16 AM
Some of the Queensland 2' gauge locos are actually ex-3'6" locos - former Queensland "standard" gauge switchers.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Ed Lecuyer on February 02, 2018, 01:58:48 AM
Another Baldwin design, 32 tons:
http://sa-transport.co.za/trains/sugar_cane_rail/baldwin.html (http://sa-transport.co.za/trains/sugar_cane_rail/baldwin.html)
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 02, 2018, 02:29:51 AM
Let us be clear that the Baldwin sugar railway diesels are NOT from Baldwin Locomotive Works, USA; rather they are by E.M. Baldwin & Sons of New South Wales, Australia -- no relation.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Ed Lecuyer on February 02, 2018, 02:43:58 AM
Oh. You learn something new every day. They kind of look like a US Baldwin.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Roger Cole on February 02, 2018, 03:51:36 AM
3' 6" is also known as Cape Gauge as in South Africa.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Philip Marshall on February 02, 2018, 03:54:38 AM
But just to be confusing, the WWI gas-mechanical locos like FR 'Moelwyn' mentioned earlier in the thread really are from the US Baldwin Locomotive Works, not the Australian Baldwin.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 02, 2018, 11:54:36 AM
But just to be confusing, the WWI gas-mechanical locos like FR 'Moelwyn' mentioned earlier in the thread really are from the US Baldwin Locomotive Works, not the Australian Baldwin.

I'll try to clarify my position: My plan for #53 & #54 settled on the drive train style of the Baldwin gas-mechanical like the 'Moelwyn' minus the leading non-powered axle and then making a 0-4-0+0-4-0 twin engine center cab engine using Cummins 6BTs with automatic transmissions on both ends. A 100-120 gallon fuel tank and air tanks from a semi-truck. I'm aiming for about 20-25000lbs with a top out of 30000lbs max.

Rob
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 02, 2018, 04:33:49 PM
Here's a 1935-vintage 150 hp 0-6-0 diesel built in Australia. Still in existence, still operational.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: John Kokas on February 03, 2018, 12:45:25 PM
Robert,

Due to the scaled down size of your proposed engine, I would suggest you look more at a 4BT engine rather than a 6BT.  They are available up to 140HP which is only slightly less than the original engines on a 44 tonner.  There are lots of surplus or re-man engines available for very reasonable prices.  Also I would look at diesel-electric as they would not require transmissions, gearing, etc. They would also be period correct since both GE and I-R were building boxcabs during the 1920's-30s.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 05, 2018, 01:11:34 PM
Robert,

Due to the scaled down size of your proposed engine, I would suggest you look more at a 4BT engine rather than a 6BT.  They are available up to 140HP which is only slightly less than the original engines on a 44 tonner.  There are lots of surplus or re-man engines available for very reasonable prices.  Also I would look at diesel-electric as they would not require transmissions, gearing, etc. They would also be period correct since both GE and I-R were building boxcabs during the 1920's-30s.

The biggest issue I have been running into is finding a suitable generator head to power the electrics. Traction motors and controllers are easy to find, but the generator is the hard part. I'll keep digging unless someone knows of a good DC generator head out there.
4BTs are also a good option but they are pricey to the point of costing more than 6BTs right now.

Rob

Edit: Just found a 26KW diesel DC genset. Now to look up if speed controllers can handle variable voltages to operate electric motors.

Edit 2: HOLY COW! Speed controllers are $$$$$$$, motors are about $4000.00 ea, and that is not including all the wire, relays, fuses ect and the genset is not cheap as well. I think this was why I shied away from diesel-electric.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Wayne Laepple on February 05, 2018, 04:20:07 PM
Just as a matter of information, as well as a possible assist in the design of a new internal combustion locomotive, the early General electric steeple-cab electric locomotives were fitted with arch-bar trucks. See photo. This particular locomotive was later outfitted with a diesel engine and generator buy its original owner, the Warwick Railway in Rhode Island, and still later purchased and retrofitted with another larger diesel by the Strasburg Rail Road. Unfortunately, it was too small for their needs and scrapped.
Title: Re: What If? Design Project: 1925-1940 2ft Diesel
Post by: Robert Hale on February 05, 2018, 07:27:28 PM
Just as a matter of information, as well as a possible assist in the design of a new internal combustion locomotive, the early General electric steeple-cab electric locomotives were fitted with arch-bar trucks. See photo. This particular locomotive was later outfitted with a diesel engine and generator buy its original owner, the Warwick Railway in Rhode Island, and still later purchased and retrofitted with another larger diesel by the Strasburg Rail Road. Unfortunately, it was too small for their needs and scrapped.

I'll keep doing the research on the diesel electric.