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Murdoch17 posted a topic in LEGO Train TechIn keeping with my revamps of Museum of Transportation vehicles, I present to you this updated 4-8-4 steam engine modeled after 4460: the Forgotten Daylight. Real world background info on this type: During World War II, the US Government controlled the railway locomotive builders, one of which was Lima. Southern Pacific submitted a order to Lima Locomotive Works for 16 new 4-8-4 steam engines, (known as Daylights) which was turned down. Southern Pacific reworked the blueprints to have little streamlining, and not feature the Daylight's color scheme of orange, red and black. These new engines were painted in silver and black, and were also smaller. Lima finally green-lighted the order in 1943, but with one condition: Six engines would be taken from the order and given to the power-starved Western Pacific Railroad. Because of their smaller size and the fact they were built during WWII gave these engine the names "Baby Daylights" and "War Babies". Officially, they were called GS-6 and numbered 4460 - 4469. (GS meaning General Service or Golden State, and 6 because they were the sixth batch of engines.) Only one of the GS-6 type survives: 4460, often referred to as the Forgotten Daylight when compared to it's famous GS-4 cousin 4449. This model of the engine will be built as soon as funds allow, as it costs $170 US from five Bricklink sellers. This time the engine has new pistons derived from 4-8-0 Mastodon making this engine into a true 4-8-4 instead of having a two wheel pony truck at the front with two small wheels before the drivers but on the same frame. (this technically made it into a 2-10-4 before I fixed it.) Speaking of 2-10-4's, this engine is made to be the same size as that type, making them shed mates on my layout. As usual, the tender is the same one as before because if it ain't broke, don't fix it. The engine will have "SOUTHERN PACIFIC" in printed tiles on the tender sides, with "4460" on the cab sides and tender rear. Here is the steam engine 4460 waiting for orders sometime in it's working life. (Picture from the Facebook page of the National Railway Historical Society, St Louis Chapter) It is NOT my photo! Quoting Jan Snyder (who posted to my original MOCpage for this engine's first version): "I remember, very well, the 'funeral' held for the 4460--the last run of the SP steam engines. At the time, I was an 12 year old Boy Scout bugler who was asked to play taps. They had me stand on the engine, at the left front side, and the crowd of people seemed massive for a kid my age. A photo, published in the next morning's Oakland Tribune, recently turned up on a collection. That photo hangs on my office wall with fond memories." LDD file: http://www.mocpages....1437838341m.lxf Also, there are two parts missing from the pictures but are in the LDD file: the connecting rods that go into the pistons. These were giving me trouble so I put them next to the model. EDIT: And here is the locomotive in real life! Here is the side of the locomotive. (dang it - I just realized I put the the wheels on rear bogie of the engine too far apart!) This picture shows how much overhang (not much, really) the engine has in standard LEGO curves. This picture is slightly out of focus. Sorry! ...and as a bonus, here is a picture of the engine sitting with it's Lego counterpart: Today, the engine sits in a off-limits area (I received permission to take this photo from museum staff) and is barely visible to visitors, only by knowing where to look in the Roberts Shed and leaning over a railing can you see the beauty that is 4460.
I have been wanting to build this locomotive for almost 8 years. It is a Reading T-1 Northern 4-8-4. It ran excursions for the Chessie System in 1977 and 1978. I first started designing it in MLCAD in late 2007. Since then I have redesigned it several times and even started building it in brick in 2011. However, I got stuck, became discouraged and didn't get too far. I have never built a large steam engine before so the thought of it was quite overwhelming because I knew it wouldn't be easy. On top of that, because all of the other great LEGO steam locomotives out there, I set my expectations very high for what I wanted it to look like. I am still far from being done after about two months work, but I am far enough along that I am finally ready to share. I have started working on the tender also, but it is a very rough draft right now. I don't claim very many techniques used as my own. I took inspiration from many other MOC's. Mostly Tony Sava for his #4449 Northern. A lot of the pilot truck and cylinder construction is based on his model. After serveral failed attempts trying to figure it out on my own, it was time for help. Here is picture of the real thing For fun I started a blog where I am going to document my LEGO builds. Right now there is a little history of the first 8 years I spent on this engine: John's Blog Thanks, John
full gallery I am pleased to present my rendition of the preserved GN S2 class 4-8-4 northern, #2584. This locomotive has been on my to do list for quite some time. I was waiting for the cheese slopes to come out in sand green and then it was only a matter of time. I first saw this engine many years ago while taking Amtrak through Havre, Montana where she is on static display. How bold to paint a steam engine such a bright green. Sure, she was an oil burner, but still, imagine the work to keep that boiler looking clean. The US railroads loved to do this sort of thing and fought to keep their equipment clean (remember, these trains were the equivalent of today's business class on transcontinental flights, heck, the NYC's 20th Century limited is where the phrase "roll out the red carpet" originated, but I digress). Delivered in 1930, the engine arrived in the Glacier Park paint scheme and the fleet of S1 and S2's were used to pull the finest passenger trains on the Great Northern. By early 1950's they were reassigned to freight and repainted black. The 2584 was retired Dec 1957 and stored. GN decided to preserve this locomotive and after restoring it, put it on display in 1964 (more details can be found here). When I saw it, it still had "no trepassing, BN Ry" signs on the fence. So presumably it has been under railroad ownership throughout. When I started building the custom valve gear parts, I knew it was time to build this engine. It took a few months, but here's my model. I must say, building in rare color like sand green is extra fun. Let's take a tour from the front to the back. On the nose I had to have the air compressors, and here was the first collision with the limited parts availability in sand green. I almost gave an arm and a leg to solve it but in the end I managed to keep the arm. Getting all of the snot for the smoke box working was an exercise in multi-dimensional optimization. On the side the stairs up to the running boards turned out well (I'm not sure if I came up with that solution on my own or if I first saw it on another model). Also note the hand rails, a refined design from my earlier northern's. Within the boiler, the framework is largely unchanged from my J, and later used on two other northern's. The design is solid for operating at shows with uneven tracks- the drivers are pulled from the pilot truck and the boiler itself rides on just two trucks. This has the added feature of keeping the swing within reason on curves. Allowing me to put the tender foot plate at the cab foot plate (with the aid of a few wedge plates). I must say, when building a locomotive for tight curves, you come to understand why the rear corners of the cab roofs and top corners of the tenders were cut off. The frame is also strong enough that you can put two or three of the northerns on the point of a heavy train and pull through the front couplers. While viewing the second image above, note the sloped front to the cab borrowed from my NP northern, the mud ring on the bottom of the firebox borrowed from my Milw northern, the cab roof details borrowed from my SP pacific. I think the vent hatches look particularly good in dark red. You will also see one of the design elements that I'm quite pleased with, the sand green ladder above the running board. I'm getting ahead of myself on this tour. Jumping back to the drivers for a moment, I used my custom rods and valve gear bars for the drivers, including modeling the Walschaerts valve gear. Meanwhile, up top, I managed to sneak in a 1/2 plate offset for the green boiler jacket (visible in the very first photo in this post, where the gray smokebox transitions to the green boiler). Now moving to the rear, this oil burner had a Vanderbilt tender. I knew that wouldn't be much of a problem since I had already built one packed with PF equipment for my SP pacific. I had to build the complete engine first, so that I could figure out the clearance for the tender. This time it wound up being almost entirely snotted. Since I did not have to worry about putting anything in the tender, I could get the proportions better than the SP tender. I even included a rounded bottom (though no good photos yet exist). I've got to say that Vanderbilt tenders are hard to photograph and I'm not completely satisfied with the quality of the photos of the tender, but this one should give you an idea, If you look closely, you will also see my Indiana Jones moment. I was faced with figuring out how to get the ladder on the front of the tender. On curves, the couplers swing out to 6 wide. So there wasn't enough room to get any design I liked in there. Seeing the man waving a pair of machetes at me, I dropped my whip and picked up my six shooter. Voila, as I slip another rung down the lego purity slope, the custom ladder was born. They looked so good, I decided to hang another pair off the back of the tender (I'll post more about the ladders soon). Now returning to the prototype for a moment. The Havre locomotive looks striking in its green paint, but while I was digging up reference material for this model, I quickly learned that it was the wrong color. From everything I've read, the Glacier Park paint scheme was commonly used on passenger locomotives, but it was never an official scheme. For the curious, click the small image below for the best color example of the scheme that I'm aware of. Also note the herald on the engineer's side, the goat is facing to the right. The closest lego color to the original green would probably be dark green. Still, I like sand green as the prototype is currently and I didn't want this to look like a Emerald Night MOD. Still, it has gotten me wondering why the prototype is the wrong color. GN preserved this engine and then BN, so it is not like some misguided town repainted it in the faded color after years of neglect. full gallery
LEGO Guy Bri posted a topic in LEGO Train TechSince the Train Tech Questions thread is on the downslope, I thought I'd go on and start up a brief discussion regarding a potential problem regarding larger steam locomotives. I have a couple 10194 E. Nights that I would like to combine to make a larger steam loco, along the lines of a x-8-x set up. My questions are, how does this type set of wheel setup handle regular curves and switch points? And if this is a problem, is there a solution, or just something I will have to deal with? I cannot test this as all of my track and spare E. Night are buried in storage. A side note: I would like to have each set of wheels attached to the same rods. I am more concerned about the aesthetics rather than it's ability to run on a curve, if it comes down to that. Any advice is appreciated!