Does this exist?

Discussion in 'HO Scale Model Trains' started by CNWman, Feb 20, 2007.

  1. CNWman

    CNWman CNW Fan

    Hello everybody,
    I'm curious as to weither or not an HO model of the PRR S1 6-4-4-6 articulated exists. I think it looks pretty cool and I'd love to repaint it in CNW colors because that would be just awesome IMO. If it could handle 18' radius curves, Bachman E-Z track, that would be nice:thumb:
  2. eightyeightfan1

    eightyeightfan1 Now I'm AMP'd

    Don't think you'll find one in a plastic RTR.
    The S-1 was a Pennsy specific loco.(Like the T-1 Duplex). So finding a mass produced model would be almost next to impossible.
    Your best bet would be to try to find one in brass. In which case finding the funds for purchase would be almost next to impossible.
    I do think Lionel made one in 027 tinplate.
  3. doctorwayne

    doctorwayne Active Member

    I'm not aware of a mass-produced model of the S-1, but Bowser makes a model of the T-1 Duplex 4-4-4-4. They recommend a 22" radius, but offer tips to allow operation on an 18" radius. This loco is equipped with two motors.

  4. Ray Marinaccio

    Ray Marinaccio Active Member

  5. 60103

    60103 Pooh Bah

    The Q2 was really a 4-8-4 with extra cylinders (and am incomplete side rod). The S1 would have been like a 6-8-6. That's where the problems with track come in.
    I think the Lionel model was the steam turbine which was a 6-8-6.
  6. green_elite_cab

    green_elite_cab Keep It Moving!


    you do not paint over PRR locomotives. the last railroad that tried to do that exploded in failure

    in any event, it would be cool to have an S1. BLI and bowser did make a T1, maybe they will make an S1. theonly problem is in real life, the S1 had real radious problems. a model would surely be so handicapped.
  7. Squidbait

    Squidbait Recovering ALCO-holic

  8. MadHatter

    MadHatter Charging at full tilt.

  9. Squidbait

    Squidbait Recovering ALCO-holic

    Wups! Sorry.... that's what I get for posting in the wee small hours! :rolleyes:

    In my defense, the wheel count's the same! :p :D

    I agree GEC and the Mad Hatter... you don't deserve one if you're going to paint it C&NW colours! Yellow and green indeed! peasoup

  10. green_elite_cab

    green_elite_cab Keep It Moving!

  11. Pitchwife

    Pitchwife Dreamer

    I'm curious, why would they buy an engine that wouldn't run on their tracks?? Was it one of those "It seemed like a good idea at the time" things? :D :D :D
  12. green_elite_cab

    green_elite_cab Keep It Moving!

    I think it had alot to do with trying to beat the speed record, and the 1933(?) worlds fair. the Pennsy obviously had to have some kickass locomotive to display!
  13. Fluesheet

    Fluesheet Member

    The duplex idea was a good one, it just did not have time to be refined. The idea was to divide piston thrust between two smaller sets of engines so lighter machinery (rods and valve gear) and counterbalancing could be used. Those improvements in turn allowed higher operating speeds with less track damage than a similar-capacity 4-8-4.

    As an aside, counterbalancing is used not only to balance the weight of the side and main rods, but also to offset piston thrust. The latter, if not offset to some degree, would cause locomotives to "waddle" excessively down the track, which was hell on track gauge! This is also the reason that higher speed steam locomotives used four wheel leading trucks - their role was to act as a damper to the thrust-induced waddle, as well as guiding the engine.

    The reason the S1 used six wheel leading and trailing trucks may have been due to weight - the extra axles would have kept loadings within reason if that was the case (the S1 WAS heavy). This was true of the steam turbine engine, which was develped as a 4-8-4, but became heavier than planned due to wartime restrictions on lightweight alloys.

    Another short response gone long... :)
  14. CNWman

    CNWman CNW Fan


    Um, the first isn't the S1 and the second isn't even a locomotive, ya know...

    I've rethought about it, and decided against it. the S1 looks pretty cool in it's PRR getup. I had to take a look at my "Great Railway Adventures" book "The Torpedo Run" to fully make up my mind about it ( If you don't know, The "Great Railway Adventures" is a tirlogy involving two kids and their dog as they try to make it to the 1933 World's Fair in NYC, and in each book they ride on a famous train, the S1 being the final one seing as how it was showcased at the World's fair, but I think they called it the "Torpedo" because it sounded cooler.)

    Yes it was:D The biggest steamer in the world currently is a duplex: the 4-6-6-4 Chalenger! But why is it the biggest when the Big Boy class duplexes are 4-8-8-4's?:confused:

    I'm not going to turn it into a CNW loco anymore! Becides, I know squat about painting locos anyway and I'm probably not gonna get one if they're over $1400:eek:

  15. Squidbait

    Squidbait Recovering ALCO-holic

    OK, I already admitted to my goof... I'm not sure why the second link doesn't work - it's supposed to be pointing to a tarnished S2 model.

    What's the world's largest steam loco is a slippery question, since there's lots of different measures to go by. This site has a good discussion of the biggest and most powerful steamers.

    The UP Challenger is the largest operating steam loco, but it was nowhere near the largest ever, in the US or the world.
  16. green_elite_cab

    green_elite_cab Keep It Moving!

    actually the 2-6-6-6 Allegheny was bigger than the the challenger or Big boy locomotives in terms of sheer mass and height. the big boys were slightly longer i think, but not as big. the big boys are also just stretched challengers, so the big boys are still bigger than the challenger.
  17. Yes, but it has been proven that the Big Boy was the overall best steam locomotive because of its balance of power and size. The Big Boy had the most power for its size of any steam locomotive ever; that's why it was able to pull mile-long consists up Sherman Hill alone.
  18. Squidbait

    Squidbait Recovering ALCO-holic

    Careful with a word like proven... it's really only valid in mathematics and logic exercises. :p

    You're stating an opinion (one that your tagline suggests is biased!). Without having the locos side-by-side for objective evaluation, all we've got to go on is opinion.

    I think we can agree that the Big Boys were certainly among the best of the biggest steamers, but I don't think it's possible to set the crown on any one loco.
  19. Fluesheet

    Fluesheet Member

    Hold on fellas, back on topic! "Duplex" engines have a rigid chassis - no articulated talk! :)

    BUT... Squidbait is right - no one locomotive is the "best". Operating conditions varied from railroad to railroad. When it comes down to hard numbers, there were other locomotives that could outpull it, out horsepower it (including Pennsy's Q2 duplex!) and outweigh it. However, there is no doubt that that locomotive was an excellent answer for the question that the UP had at the time.
  20. Canopus

    Canopus Member

    Conrail? I thought they were just gobbled up by CSX. :thumb:

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