Author Topic: What If? Design Project: 1925-1940 2ft Diesel  (Read 5888 times)

James Patten

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #30 on: February 02, 2018, 12:09:16 AM »
Some of the Queensland 2' gauge locos are actually ex-3'6" locos - former Queensland "standard" gauge switchers.

Ed Lecuyer

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #31 on: February 02, 2018, 12:58:48 AM »
Ed Lecuyer
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Wayne Laepple

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #32 on: February 02, 2018, 01:29:51 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.
« Last Edit: February 02, 2018, 01:43:18 AM by Ed Lecuyer »

Ed Lecuyer

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #33 on: February 02, 2018, 01:43:58 AM »
Oh. You learn something new every day. They kind of look like a US Baldwin.
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Roger Cole

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #34 on: February 02, 2018, 02:51:36 AM »
3' 6" is also known as Cape Gauge as in South Africa.

Philip Marshall

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #35 on: February 02, 2018, 02:54:38 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.

Robert Hale

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #36 on: February 02, 2018, 10:54:36 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

Wayne Laepple

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #37 on: February 02, 2018, 03:33:49 PM »
Here's a 1935-vintage 150 hp 0-6-0 diesel built in Australia. Still in existence, still operational.

John Kokas

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #38 on: February 03, 2018, 11:45:25 AM »
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.
Moxie Bootlegger

Robert Hale

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #39 on: February 05, 2018, 12:11:34 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.
« Last Edit: February 05, 2018, 01:44:51 PM by Robert Hale »

Wayne Laepple

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #40 on: February 05, 2018, 03:20:07 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.
« Last Edit: February 05, 2018, 03:28:46 PM by Wayne Laepple »

Robert Hale

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Re: What If? Design Project: 1925-1940 2ft Diesel
« Reply #41 on: February 05, 2018, 06:27:28 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.