Charles
1st Class Member
Conductor
Posts:636
Send Message
 | | 01/24/2008 12:08 PM |
| Bruce
If someone could come up with some form of dynamic pull device it would probably be a different story.
Like that concept....train pull, similar to tractor pull. | |
Happy Trails on the Rails
Offering services to enhance your steam locomotive
Charles
SA #614
http://cebednarik.googlepages.com/home | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/24/2008 12:18 PM |
| Bill,
A Baldwin Centepede - I like the way you are thinking! But for now, I think 12 driving axles is enough in an A-B unit. Maybe it will look something like the early Krauss Maffei diesels (in Lake Hall & Highgrove black and tan, of course):
http://www.divisionpoint.com/D+RGW_K-M.html
Bob | | | |
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afinegan
1st Class Member
Boca Raton
Foreman
Posts:161
Send Message
| | 01/24/2008 12:19 PM |
| en.wikipedia.org/wiki/Baldwin_Centipede
Interesting lolol, long engine with perpendicular sliding powered trucks. The front and the back trucks are non powered Then add lots of weight.
-Andrew | |
Andrew Finegan
SA# 777
Current Project: DJB Coal Fired Ruby
Current Engines:
Accucraft Ruby Butane, DJB Coal Fired Ruby(in construction), Accucraft Shay #2, Aster Thunderbolt | |
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Shay Gear Head
Easley, South Carolina
Foreman
Posts:106
Send Message
| | 01/24/2008 1:14 PM |
| I think what Bob has in mind may be more like the Union Pacific Gas Turbines.
http://en.wikipedia.org/wiki/Union_Pacific_GTELs
There were several different variations to choose from. I personally like the Veranda models like #68.
Just have your axle count ready before the competition as I may run out of fingers and toes! | |
Bruce Gathman, President
Eldorado Timber & Mining Company
Tall Trees - Deep Shafts
Recreating the past with live steam Shay locomotives and lots of log cars. | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/24/2008 1:35 PM |
| Bruce,
I plan to build a separate A and B unit, with each unit electrically connected to operate as one, each having an engine and alternator, each having two 3-axle trucks. Something like this:
http://en.wikipedia.org/wiki/EMD_E1
Bob | | | |
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highpressure
DeSoto, missouri. 63020
Brakeman
Posts:32
Send Message
| | 01/26/2008 9:11 AM |
| H'mmmmm'
Let's see , That means I need to built another 2 truck trailer unit for the 4t Shay.
Making it a o-4-4-0-4-4-0-4-4-0, 6t Shay. Being external combustion we could also raise the boiler pressure, probably to 150 PSI or so & put in a High lift cam. Maybe 3 more cylinders on the left side. With John's permission we could also 'KNURL" all of the wheels. Then there are 4 more 4" long Berilliam copper slugs (6 lb's each) laying around that could be installed in the tanks to add to it's gripping power. Wadda ya think ???
LS-2173 | |
Larry Herget | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/26/2008 9:20 AM |
| Larry,
That sounds reasonable to me.
Bob | | | |
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rodblakeman
1st Class Member
UK
Brakeman
Posts:83
Send Message
| | 01/26/2008 9:23 AM |
|
Larry, I think some of you guys have too much spare time on hands  | |
Rod.
SA 475
http://cslr.co.uk/Southdown2005.htm
http://picasaweb.google.com/wpandyr | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/26/2008 11:31 AM |
| Rod,
Actually, I already have most of the parts for the 12 axle A-B unit. I will begin tests with the new alternator in the next week or so.
Bob | | | |
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highpressure
DeSoto, missouri. 63020
Brakeman
Posts:32
Send Message
| | 01/26/2008 1:21 PM |
| Rod,
I'm retired as you are & my favorite place is in the shop working (FOR MYSELF FOR A CHANGE).
Havin fun & on the run.
LS - 2173 | |
Larry Herget | |
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rodblakeman
1st Class Member
UK
Brakeman
Posts:83
Send Message
| | 01/26/2008 4:21 PM |
| Bob,
Looking for ward t o seeing your provisional testing results with the alternator, if all goes to plan you should have a real load hauler .
Larry,
Good things come out of your shop so it will be something to see next year when your 6 truck Shay faces Bob's A+B unit, that will be some showdown How about couplingthe two contestants back to back with a spring balance gauge between them , then the big pull off.  | |
Rod.
SA 475
http://cslr.co.uk/Southdown2005.htm
http://picasaweb.google.com/wpandyr | |
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Shay Gear Head
Easley, South Carolina
Foreman
Posts:106
Send Message
| | 01/27/2008 5:18 AM |
| The Judge Sez,
An "A" and a "B" unit to me equals two units. The results will need to be divided by two. Now if the second unit is a slave or slug that is permanently coupled, as per several prototypes, then OK. I guess the tech inspection guys will need to talk to NASCAR and F1 for help in writing new rules to cover any and all loco designs. As there were NEVER any real 6 truck Shays then this loco would have to be entered in the fantasy class and would receive, you guessed it, a fantasy trophy. | |
Bruce Gathman, President
Eldorado Timber & Mining Company
Tall Trees - Deep Shafts
Recreating the past with live steam Shay locomotives and lots of log cars. | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/27/2008 7:13 AM |
| Bruce,
Something for the Judge to consider: The B-unit will not be capable of operating on its own - It will not have a radio, batteries, or direction control switch. The B-unit will only have a throttle servo that is controlled from the A-unit radio. The A-unit will operate independently, but the B-unit can only operate if connected to the A-unit.
If you still consider these to be two units, I'll just create a permanent span bolster between the A and B units just like the diesel guys of old did to avoid having a union fireman on the B unit!
The reason I'm asking is I'm about to head out to the garage to start working on this thing!
Bob
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Shay Gear Head
Easley, South Carolina
Foreman
Posts:106
Send Message
| | 01/28/2008 8:14 AM |
| Bob,
It all comes down to is there more than one motor-generator/alternator in the units. The 4t Shay only had one set of cylinders or power source!
See the definition for slug here: http://en.wikipedia.org/wiki/Slug_(railroad)
If the second unit is self-powered (motor-generator/alternator inside) even though it has no controls other than a MU connection of sorts, it is additional unit. Most railroads numbered their units separately even though they were permanently coupled. I.E. CB&Q #134A, 134B, 134C, and 134D, all permanently coupled but all had power with MU operations from the first unit.
I've got to go to the fishing supply house and look for some stronger leader as the 15 lb test line is getting close to the breaking point. We need more of a safety margin. Or, we may need to add a catcher at the end of the track as we had when we ran the "Go Fast" races in St. Louis. | |
Bruce Gathman, President
Eldorado Timber & Mining Company
Tall Trees - Deep Shafts
Recreating the past with live steam Shay locomotives and lots of log cars. | |
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Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/28/2008 8:33 AM |
| Bruce,
Thanks for the clarification. Maybe I'll just build a twin-engined locomotive (6-axle) and if I have enough time add a non-powered slug unit (attached permanently with a span bolster) for a 12-axle unit
My last question, and then I promise to leave you alone! Could the locomotive run in the 4-axle class, then change the trucks to run in the 6-axle class, then add the slug to run in the 12-axle class?
Thanks,
Bob | | | |
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Shay Gear Head
Easley, South Carolina
Foreman
Posts:106
Send Message
| | 01/28/2008 1:10 PM |
| Bob,
MY HORSE IS DEAD! Sent him to the glue factory!
Yes, yes, yes, anything you want at this point.
I'm filing with the authorities for a judgeship in another territory - maybe Tallahassee.
The people down there can't be that bad can they? | |
Bruce Gathman, President
Eldorado Timber & Mining Company
Tall Trees - Deep Shafts
Recreating the past with live steam Shay locomotives and lots of log cars. | |
|
Bob Pope
1st Class Member
Tallahassee, FL
Brakeman
Posts:56
Send Message
| | 01/28/2008 1:42 PM |
| Bruce,
Sorry for killing your horse, and for bothering you. That wasn't my intention.
Bob | | | |
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