Skip to main content

I've posted elsewhere about two ATSF locos that were planned but cancelled, which I have decided I want to run on my layout and so must build.  A number of folks have asked for photos, etc., as I go along rather than just when done, including my showing the learning experiences (i.e., what doesn't work).  I decided rather than update those three other threads I would unify everything here.  I will add to this thread from time to time as I make progress of run into more "learning experience."  

 

The first of these two locos was a 6-4-4-4 steamlined cab-forward, 100 mph-cruise postwar oil-fired steamer to pull the Super Chief - think of PRR T-1 turned around with a diesel type cab forward and you pretty much have it, at least as pictured in E.D. Worley's Iron Horses of the Santa Fe Trail.  Photo below is of it as of this afternoon: Made from a scale TMCC T-1 and a MTH Premier dummy F3 cab, front truck from my spare/junked loco parts box.  Most of the heavy work is done: the model looks almost exactly like the drawing in the book except for sun shades over the cab front windows, which I will add later.  The only mod required beyond cosmetic bashing was to move the wireless coupler to the ofter end of the loco.  It runs well with the front truck behaving itself and tracking well.  A lot of detail work and rather involved paint to do yet (Warbonnet, of course!).  I may replace the T-1's tender with an all-new body rather than try to modify this one: the two drawings on have of this show it with what looked much more like the tender from a UP Veranda turbine than an oil-version of this one. 

DSCN5210

 

 

The second loco is a much more challenging build.  It is a Pentuplex -  a 2-8-8-8-8-8-2 proposed just before WWI by Baldwin for Santa Fe in 1913.  Had the war, USRA standards, etc., not intervened it might have been built: the longest, heaviest, steam loco ever with more pull that two Mallets.  It was to have cab forward and a cab in the rear, too, and was to have a flexible joint in the boiler as well as a flex-jointed, bendable tender.   This is my drawing of what it would have looked like, based on various books and internet references to it.  

big loco

I posted a picture some days back of the running chassis.  I never had any doubt I could make it work well (chassis from five Lionel RTR 0-8-0 locos).  It is the smoothest running loco I have ever seen, too: forty-four wheels and twelve center pickups don't lose connectivity with the track for even a millisecond for its five flywheel motors.  Photo and video below show it with experimental body #1, crude cardboard but it serves for the experiment.  aI discuss what works and what I have learned for try #2 after the video.

DSCN5213

I always figured the real challenge would be building the loco body, from scratch, so the two flex joints work, and this is proving to be the case.  The cardboard body is crude and ugly cardboard and paper , and the boiler is too narrow and way too low - deliberately so, so as to really test clearances and space needs inside it.  This experiment is semi-successful.  The tender's flex-joint works well enough: I know how to engineer that now.  At the joint one tender has a rounded end (when viewed from above) that fits about an inch into the front of the other and rotates within it. it works well enough.  

 

The boiler joint is not satisfactory. I expected this but I had to try the obvious first: here, the two sections of the boiler are firmly attached to driver sets, the front to the leading driver set and the rear to the third driver set.  They meet over the middle of the second driver set, and my hope was that their ends would place nice with one another  so that I could just install a ball joint there to connect the two (it doesn't look like a ball exactly but that terms gets the idea across).  It does not work: the two boiler ends bounce and twist around, not alot, maybe only 1/4 inch at times, but enough relative to one another that with my ball joint connecting them, shake and twist their respective driver sets too much.  Next, I will try to "float" just one of the two halves of the boiler: I will leave the rear boiler secton firmly attached to its driver set, as now, but the front boiler halve will not be firmly attached to the leading driver set, instead, it will pivot at its front and its weight supported at that point and by the ball joint.  I should get that done by next week.  

 

 

Attachments

Images (3)
  • big loco
  • DSCN5210
  • DSCN5213
Videos (1)
Pentuplex alpha prototype
Original Post

Replies sorted oldest to newest

Amazing work yet again Lee. 

 

I have been pondering your boiler articulation problems, and unfortunately I think that I may have come up with another potential problem with a fixed length ball-joint type of connection. Have you considered the various motions that might be encountered in traversing an S-curve such as on a cross-over, or even a simple siding? Sorry for mentioning this if you have already considered it, but it seemed to be of enough significance to warrant mentioning.

Very neat and really interesting engineering problem.

 

Looking at the sketch and watching the video, I'm guessing the running gear "articulates" (not sure if that is the best choice for terminology) between each 0-8-0 module (with the 2 wheel leading and trailing trucks moving separately)?

 

It looks like the tender works pretty much like two very closely coupled cars with the rotation point between the 2 0-8-0 modules.

 

With the engine portion, you have 2 points of articulation for the 3 0-8-0 modules, so that for an S curve as NQDY mentions, the 3 0-8-0 modules could be at different angles to each other. But, as drawn in the sketch, the boiler only has 1 point of articulation at the middle of the middle 0-8-0 module. Seems like something has to give.

 

I'm thinking you are on the right track with the middle point of articulation and floating the boilers. I think you are right about a ball joint as I was originally thinking just a vertical joint, but there is an also an up and down articulation.

 

But, I think you are going to need to attach the boilers so they have a ball joint at each end of the boiler.

 

The one in the middle is a fixed point attached to the middle 0-8-0 module and it attaches to the 2 boiler halves so they can twist up and down and side to side.

 

The other end of each boiler (at the front and rear cab ends) also has a ball joint that allows the boiler to twist up and down and side to side.

 

BUT, I think these two end joints are also going to need to be able to have a limited amount of "float". Perhaps some sort of slot that allows the joint box (or whatever holds the joint) to move forward and rearward slightly. This would be to account for the change in distance as the 0-8-0 modules turn in relation to each other. Each boiler half is a fixed length, but say for example when the locomotive enters a turn, there is now an angle between the first and the second 0-8-0 modules. The front boiler half forms the third leg of the triangle between the two 0-8-0 modules, but it can't remain the same length as when there was no angle between the two 0-8-0 modules, i.e. a straight line. Having a floating joint at one end (near the cab) allows for the constantly changing distance of the third leg of the triangle. Note, you could have the front half of the boiler overhanging on one side of the locomotive while the back half overhanging on the other side when going through S curves.

 

I don't know if I did a very good job of explaining it, and it's easy for me to propose an idea and then you have to try and figure out how to build it. But, given your skill and resourcefulness, you'll probably have it done in about half an hour.

Last edited by trestrainfan

Lee,

I am attempting this build as well and like the photos of the live steam version that is what I will be going off of.  With three 0-8-0 drives close together it looks like you only need two boilers to make it work.  Fixed in the front and float the rear end looks like the way to go. I will know more when I get all of my parts in.

 

James

Last edited by ddgoose69

Progress in the last week was, inevitably, less than hoped for: good weather  meant a focus on yardwork and some projects outdoors, and I distracted myself with "Sharks" (separate post) which was a lot of fun.  Still, a bit of progress.

 

ATSF 6-4-4-4 cab-forward streamliner is looking good.  I somehow managed about six hours on this this week, it being my chief focus now.  I did some light tweaking of the relocated IR coupler: the coupling now fits in either of two positions, that shown, and one that reduces the gap to the tender to about 40% of that shown: just barely enough for 72" curves.  The modified  boiler shell at the rar and all is permanently installed along with all rear body modifications: you see styrene (white) and Bondo filler (red) which I will let harden for a few days before beginning finish work.

Slide1

Slide4

 

It won't be easy to see inside through the windows of the cab so I did not put a lot of detail in the cab, but I painted the instruments and made a scratch-built dashboard and console that fits nicely in the cab, so there will be some sense of details when one looks inside.  The figures are from the ten I harvested when I took apart the RTR 0-8-0 locos that make up the chassis for fantasy loco #2 (not much progress, but updated farther below).  

Slide2

After thinking about the tender, looking at the various artis'ts renderings of what this would have looked like, and playing with SuperChief cars (which it would have pulled) behind it, I removed and put aside the PRR tender shell and began to "scratch build" a steamlined fuel-oil-and-water tender that looks more like those in the drawings.  The shiny top is from an aluminum Super Chief passenger car - an old silhouette car I decided to sacrifice: it has exactly the roof profile need.  Sides are from .10 styrene sheet, as will be the ends (yet to make).  I will lower the height about 3/16 inch from what is shown in the photo below: I have to relocate one item inside before I can do that.  Once the body is complete I will add some a few details: a few filler hatches and hoses, etc., but the whole idea is for a pretty smooth  look leading into the shape of the passenger cars themselves. 

Slide3

 

The other fantasy loco, the 1913 Baldwin 2-8-8-8-8-8-2 pentuplex, saw no work at all this week worthy of pictures: I am concentrating on the 6-4-4-4 because I want the loco badly and it is not terribly difficult.  B y contrast, this is going to be a long slog that benefits from a lot of thinking and experimentation -  issues I have to solve.  This is a real challenge, and could take several months to get just right.  

  • I played with - several experiments - the "hinges" for the flexible boiler. Not entirely successful but getting there.   I need to find something that "fits" (doesn't look out of place or take up room I don't have) and that hinges in one direction (side to side) with ease, but provides real rigidity in the up down movement, not permitting any vertical rocking and angle change, etc..  I'm still playing with/thinking about this.
  • I've determining I have to make the chassis - all five 8-driver portions, heavier by around 4 to 6 ounces each, with as low a center of gravity as I can get.  Thinking about this too.

Attachments

Images (4)
  • Slide1
  • Slide2
  • Slide3
  • Slide4

Absolutely no progress to show on the 2-8-8-8-8-8-2, although I do have a new boiler hinge design in mind. FV-Trains was up from Florida and visited last Thursday and brought along his new Electroliner to run.  I studied the between-cars bellows on that model and it gave me ideas.

 

I've been focusing most of my energy on the streamlined cab-forward 6-4-4-4.  The pictures below are based on a photo taken yesterday, when it was still in primer.  It now has a new coat of Warbonnet type silver over everything but the cab, which I will let harden for a few days and them do red, yellow, black in that order.  I have three different possible paint schemes in mind as shown below, all variants on Warbonnet, of course.  Just curious which people like best - I don't promise to follow anyone's suggestions, but I will appreciate any input.  

 

Paint schemes

Attachments

Images (1)
  • Paint schemes
Last edited by Lee Willis
Originally Posted by aterry11:

One of a kind for sure. Vote #2 but everything under the red stripe should be red too. Tender also the difference makes it special.

I have to agree with aterry11.  I don't think the "lobe" on the traditional warbonnet looks quite right in #1 (given the reduced surface area/height due to the cut-out for the drivers), and the altered styling in #2 looks much sleeker.  Because the pin-stripe is so high, though, painting everything underneath it red might look pretty good.

 

-Dustin

Lee...

 

Looking at that inspirational chapter in Worley's tome...

 

Your version #1 is on the 'right track' (pun intended), but I have to ask why you didn't follow a warbonnet design for this monster as suggested by Gil Reid, shown on page 379???  I think it would be especially honorific if you took not only the wheel arrangement and general architecture shown in that chapter, but maybe a couple of artistic cues.

 

Gil's version, looking much like the nose of a Fairbanks Morse #90....even somewhat 'sharky' like a Baldwin!...has pretty much the standard warbonnet red nose.  But notice that the lower red stripe becomes WIDE almost to the tender skirt bottom.  That would, methinks, add some drama and graphic chutzpah to the whole monster. 

 

Also, I noticed that Gil's artwork suggests an arched opening at the bottom of the engine skirt at both the front and back.  The usual yellow/black/red horizontal stripe follows the engine skirt edge precisely, but the red portion of the stripe widens both front and rear.

 

Another touch of graphic pizazz for this beast, albeit not part of Gil's rendition but seen in V.L.Smith's sketch at the beginning of the chapter, would be the large Santa Fe circle emblem on the side of the tender.  It's VERY reminiscent of the LARGE keystone on the side of some of Pennsy's most famous...and drop-dead gorgeous!!...steam creations, like the S-1.  That large circle emblem would certainly break up the long, wide silver expanse from the engine through the tender.  Besides, it's just what the management would have applauded in celebration of this, their finest Edselian accomplishment.  (Don't believe me?....check what they did to your beloved 4-6-4 Hudson #3461 after its historic Chicago-to-LA run on December 12, 1937!!....a DOUBLE huge circle herald plastered to the side of the tender!!!  Although there's no picture of this engine with the double herald in the Worley book, a single herald applied to the tender of an earlier class of their Hudsons, number 3452, is shown on page 303, lower right.)

 

Ah, well, I'm sure you and the boys in the paint department will come up with just the right lipstick for this.....!....engine.

 

Looking forward to the big reveal!!!

 

KD

 

Last edited by dkdkrd

I have no doubt that a Baldwin shark-like cab would be more of what might have been what this thing would look like, had it been built.  But: a) I have no Sharks I want to sacrifice to this project and I have so many Warbonnet F3s in the spare parts box, and b) I like the look of an F3 cab . . .  the drawing on p. 379 is good, I admit.

 

I do agree that is is difficult to fit Warbonnet to it as well as I'd like, but . . . the pity is, just to play with the design, I tried some ideas based on UP's Greyhound scheme.  THAT works very well on it.  I'm going to complete it in Warbonnett, but had it been UP, it would have looked awesome!

I sincerely appreciate all the feedback and suggestions.  Here are two revised paint schemes.  Comment  and critique is welcome - in fact hoped for - in particular I would like to get dkdkrd's feedback.  Both paint schemes are based on dkdkrd's suggestion to follow Gil Reid's artists conceptual tdrawing of the loco on page 379 in Iron Horses of the Santa Fe Trail.  I studied it carefully.  I prefer the top scheme a lot.  Particular points are:

  • The red carried down to the bottom on the shrouds and tender looks really good, particularly if the drivers, machinery, cylinders and their background are going to be  black, as I think it would have been (I played with the image some to make this decision, plus I am not certain I can/should paint all of that silver).  I am convinced that is the way to go there.  The front three-axle truck probably ought to be black, too, which I will do (if it looks bad it's trivial to convert it back to silver).
  • Note the Gil Reid paint scheme (top) breaks one rule I have seen followed in every Warbonnet loco I have ever studied: there is only one black line along the body: yellow and red meet, and do not have a black line between them as here.  Here, in the top picture, there are two as Reid drew it.  In the bottom picture, I remove one of the two lines so the "true" Warbonnet look is followed.  Why did Reid draw it with two lines? I think I know why: the yellow line here can be viewed as is a continuation of the yellow Santa Fe crest emblem on the front of the cab (I will mask that carefully and retain the entire thing in this paint scheme) - and that emblem is surrounded by black lines on all sides. 
  • In order to both fit the black line and make it smooth and straight, I will have to use 1/16th inch black pinstripe tape for it, but can do the silver (done, see below) and red and yellow with paint.  I'm okay with that.

Revised Warbonnet paint scheme

 

Here is the loco as of ten minutes ago, the silver now with nearly a day of hardening behind it.   I will let it harden through tomorrow morning and probably do the red in late morning. 

DSCN5441

Attachments

Images (2)
  • Revised Warbonnet paint scheme
  • DSCN5441

Lee!

 

Love both revised versions!!  You've captured the essence of Gil's sketch very nicely!

 

Whereas you favor the first sketch, I rather like the second, having the broader yellow band.  But either way will be classy!  Gil Reid would have a smile as broad as the engine is long....for sure!

 

I especially like the deep red skirt on engine and tender.  VERY, VERY COOL!!  And, yes, the running gear should/would be black.  They might have put something on the wheel rims to impress the press at roll-out, but it would've quickly looked like poopy after a few hard miles and several lube jobs....IMHO, of course.

 

This will be one awesome hunk-a-hauler when fully decked out!  Yowee!!!

 

KD

Lee,
 
I know we're a little late into the main course, but I have a spare Lionel Legacy NYC shell if you are interested.
 
Originally Posted by Lee Willis:

I have no doubt that a Baldwin shark-like cab would be more of what might have been what this thing would look like, had it been built.  But: a) I have no Sharks I want to sacrifice to this project and I have so many Warbonnet F3s in the spare parts box,...

 

I like some parts of the second drawing, but I think it would look better if the yellow line remains the same width. The area where the yellow expands and protrudes forward looks off to me.

 

If this area is red, than the eye follows the diagonal line formed by the rear of the red area in the front to the diagonal line at the rear of the locomotive where the red starts, and then the red continues on to the tender.

Originally Posted by trestrainfan:

I like some parts of the second drawing, but I think it would look better if the yellow line remains the same width. The area where the yellow expands and protrudes forward looks off to me.

 

If this area is red, than the eye follows the diagonal line formed by the rear of the red area in the front to the diagonal line at the rear of the locomotive where the red starts, and then the red continues on to the tender.

It would be the same width.  I could not quite get my software to draw it perfectly the same. 

Originally Posted by trestrainfan:

Sorry Lee, I did a really bad job of describing what I meant. Here is a drawing.

lee willis loco

Oh,yeah,  I see.  That is a really good drawing.  And it does look sleek and pretty: very elegant and flowing.  The drawing by Gil Reid in Iron Horses shows the little Warbonnet squiggle forward, as I the silver does into the red on F3s, etc.  I tried to draw it.  I like you suggestion, want to think about it, but sort want to go with Gil Reid's version.  Thank you very much for taking the time!!

Originally Posted by Lee Willis:

       

I sincerely appreciate all the feedback and suggestions.  Here are two revised paint schemes.  Comment  and critique is welcome - in fact hoped for - in particular I would like to get dkdkrd's feedback.  Both paint schemes are based on dkdkrd's suggestion to follow Gil Reid's artists conceptual tdrawing of the loco on page 379 in Iron Horses of the Santa Fe Trail.  I studied it carefully.  I prefer the top scheme a lot.  Particular points are:

  • The red carried down to the bottom on the shrouds and tender looks really good, particularly if the drivers, machinery, cylinders and their background are going to be  black, as I think it would have been (I played with the image some to make this decision, plus I am not certain I can/should paint all of that silver).  I am convinced that is the way to go there.  The front three-axle truck probably ought to be black, too, which I will do (if it looks bad it's trivial to convert it back to silver).
  • Note the Gil Reid paint scheme (top) breaks one rule I have seen followed in every Warbonnet loco I have ever studied: there is only one black line along the body: yellow and red meet, and do not have a black line between them as here.  Here, in the top picture, there are two as Reid drew it.  In the bottom picture, I remove one of the two lines so the "true" Warbonnet look is followed.  Why did Reid draw it with two lines? I think I know why: the yellow line here can be viewed as is a continuation of the yellow Santa Fe crest emblem on the front of the cab (I will mask that carefully and retain the entire thing in this paint scheme) - and that emblem is surrounded by black lines on all sides. 
  • In order to both fit the black line and make it smooth and straight, I will have to use 1/16th inch black pinstripe tape for it, but can do the silver (done, see below) and red and yellow with paint.  I'm okay with that.

Revised Warbonnet paint scheme

 

Here is the loco as of ten minutes ago, the silver now with nearly a day of hardening behind it.   I will let it harden through tomorrow morning and probably do the red in late morning. 

DSCN5441


       

The only thing I would change is to have the Warbonnet "squiggle" comprise of parallel lines terminating in a constant radius half circle, not the ovoid shape in your rendering.

Beginning to look like it should now.  Masking for the red took two hours (I did this with the cab on in order to exactly fit the color mashing, etc., so I had to do the windows, and I left the original front logo which was a bear to mask right at its edge, etc.).  Actually painting took maybe a minute or two is all.  Removing the masking carefully (while paint was still wet) took quite a bit longer than that.  I'm going to let the red dry for at least a full week before masking and laying down the yellow.  

Slide3

Slide4

Attachments

Images (2)
  • Slide3
  • Slide4
Last edited by Lee Willis

Add Reply

Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×