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Thread: An engine spec needed for an 1870's Beyer-Peacock.

  1. #1

    Default An engine spec needed for an 1870's Beyer-Peacock.



    I need a little help. I regularly run this delightful Beyer-Peacock single driver locomotive on my GCR-GER-M&GNR layout and I really like driving it, but trying to find the right engine spec for it has been a bit of a trial. The problem is I don't just want to run it under DCC, but I also want to run it using the 'realistic' advanced controls. So far I've found some engines specs that seemed promising on DCC, but won't work at all using the advanced steam engine controls. At present No.3 has a 2P engine spec by Paul Hobbs which does work well on both DCC and when I use the advanced steam engine controls, but the problem is No.3 is now just too good and has a performance way beyond what it should have. These Beyer-Peacock singles were a very successful design, but they were nothing like as good as how No.3 is at present since No.3 can readily outperform other more modern engines on the line with ease. Despite having made some stunningly fast passenger runs which were amazing fun I really would like to find a more appropriate engine spec for this old engine.
    Any useful suggestions would be very much welcomed and received with thanks.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  2. #2

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    Quote Originally Posted by KotangaGirl View Post


    I need a little help. I regularly run this delightful Beyer-Peacock single driver locomotive on my GCR-GER-M&GNR layout and I really like driving it, but trying to find the right engine spec for it has been a bit of a trial. The problem is I don't just want to run it under DCC, but I also want to run it using the 'realistic' advanced controls. So far I've found some engines specs that seemed promising on DCC, but won't work at all using the advanced steam engine controls. At present No.3 has a 2P engine spec by Paul Hobbs which does work well on both DCC and when I use the advanced steam engine controls, but the problem is No.3 is now just too good and has a performance way beyond what it should have. These Beyer-Peacock singles were a very successful design, but they were nothing like as good as how No.3 is at present since No.3 can readily outperform other more modern engines on the line with ease. Despite having made some stunningly fast passenger runs which were amazing fun I really would like to find a more appropriate engine spec for this old engine.
    Any useful suggestions would be very much welcomed and received with thanks.
    Hello KotangaGirl,,,,

    Hope you are doing well, I learn more things from you about these Ancient Locos and other Assets you make.....Really amazing stuff you make......Can you imagine how it was when it Rained, Snowed or a really hot day on this engine....I guess something like old Airplanes and Ships, we are so lucky these days with the comfort we have, and yet, we still complain....LOL

    I hope someone can find the Engine Spec you need.....Nice looking Loco you are playing with.......

  3. #3

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    Hi there Blue. The Beyer-Peacock is by Paulz Trainz and is quite a nice model. I've done quite a bit to it with modifying the textures and brought it up to a cosmetic 1970-1890s spec. More than likely it would have had some kind of cab by the time period of my layout, but since I can't do 3D modelling I can't do anything about it. The weatherboard plugs into an attachment point so I would imagine a cab could be made to do the same. Perhaps I should talk to Paul about it and see if he could help me out.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  4. #4

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    These are the only details I've been able to find for my Beyer-Peacock engine.

    Beyer-Peacock 2-2-2 built 1856.

    Valve gear Stephensons
    Driving wheel dia 78ins
    Boiler pressure 120lbs/sq in
    Grate area 14 sq ft
    Firebox area 82 sq ft
    Evaporative heating surface 1010 sq ft
    Evap heating surface/Cyl volume ratio 217.01
    Cylinders 16"x20"
    Tractive effort 6695lbs
    Weight 22000 lbs engine only
    Last edited by KotangaGirl; April 5th, 2019 at 03:36 AM. Reason: added details
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  5. #5

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    At least one Beyer-Peacock engine of this design went to Australia. Note that the driving wheel is of a smaller diameter than my one though. http://www.beyerpeacock.co.uk/Drawings/890%20Col-El.pdf

    Some went to Europe, but I don't have any details of those.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  6. #6

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    With the engines specs I've tried so far let's start off with the original Paulz Trainz one. For a start it steams like the devil himself was doing the stoking which would be Ok if I couldn't manage to do 50mph on 7% cutoff with the regulator barely cracked open. The Paulz Trainz engine specs have the worst brakes ever by the way which is why I modded the Beyer-Peacock's tender to have working brakes before I started to look at other engine specs.

    I have a De Glenn compound with the same '68005' engine spec and if I hang 12 of Steve Flander's excellent GWR coaches behind it the engine spec gets tamed a little, but with a much lighter engine like the Beyer-Peacock the poor thing gets turned into a uber steam powered roller skate.

    By the way all tests were done with five six wheel coaches that Trainz said was a 87 ton load.

    Several engine specs had zero steam pressure when tried in advanced mode so they were out for a start. Others had good steam pressure, but it disappeared moment the regulator was cracked open and it never recovered.

    Camscott's E8 engine spec showed some promise with having good regulator and reverser controls that worked realistically, but it wouldn't steam no matter what I did despite being hungry for coal and thirsty for water, -and eventually at a long signal stop the steam in the boiler just faded away and never came back.

    Paul Hobb's 2P engine spec is a good steamer with the steam pressure staying at around 120 lbs/in which fits the Beyer-Peacock's specs nicely. The engine can be driven realistically with the reverser which works precisely and well (I read '2750, - Story of a Locomotive' when I was 14 so I learned all about this technique and never forgot it). The brakes are good in a perfectly realistic and believable way; - the only problem is this old Beyer-Peacock would have been a great contender in the 'Race to the North' if it'd had the same level of performance as I'm getting with Paul Hobb's engine spec.

    So that's where I am at the moment. If all else fails I'll keep using Paul Hobb's 2P engine spec and just drive sensibly, but it would be nice if I could find an engine spec that was a little closer to my old Beyer-Peacock's actual performance.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  7. #7

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    So I've found a contender. Paul Hobb's Y7 engine spec. I can hear the cries of 'No!' and 'No way!' from the audience, but bear with me. For a start it makes good steam and doesn't die off or fade away. I will admit that as an e.spec it is just a little underboilered for the Beyer-Peacock, but not enough to put it out of contention. With a train it's excellent, - the reverser and the regulator work as they should nice and precisely. I had no problems maintaining steam and did all the right things with not making the fire too thick or suddenly dumping a lot of cold water in the boiler. I did mess up once though, but it didn't cause too much of a problem.
    I did a complete circuit of Valleyfields which is about 30 scale miles without any problems at all. No steam pressure dying away at stations stops or any other such problems as I had with some other e.specs. Very easy to drive using the reverser to control speed and power which is my favoured driving techique. Braking is good, being believably realistic rather than 'snap your neck and try to hold your eyeballs in' type braking which I've struck before with some DLS downloads.
    My Beyer-Peacock is no longer a 'Race to the North' contender, but I think it will now suit my GER secondary lines just fine.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  8. #8

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    By the way this is the book I mentioned in one of my earlier posts in this thread. The author spent much or his working life on the footplate and around steam engines so it's a seriously good read for anybody interested in railways. Published in 1953 so it might be a bit hard to find, but there are copies around second hand if you want to look for them.

    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  9. #9
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    The best easily available UK steam especs are by 2995Valliant. Most of the others around are generic or made using instant calculators. He has some on the DLS for broad gauge singles which might not be too far away.


  10. #10
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    Quote Originally Posted by KotangaGirl View Post
    By the way this is the book I mentioned in one of my earlier posts in this thread. The author spent much or his working life on the footplate and around steam engines so it's a seriously good read for anybody interested in railways. Published in 1953 so it might be a bit hard to find, but there are copies around second hand if you want to look for them.
    You can Order it from Waterstones in the UK £19.99 compared to £57 second hand from Amazon!
    Malc


  11. #11

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    Quote Originally Posted by edh6 View Post
    The best easily available UK steam especs are by 2995Valliant. Most of the others around are generic or made using instant calculators. He has some on the DLS for broad gauge singles which might not be too far away.
    The problem with the Broad Gauge ones Ed is that they are designed to be DCC only and if tried under the advanced controls the boilers don't produce any steam. I had great hopes for them and ended up being disappointed.

    The e.specs I tried by Paul Hobbs worked well and produced good steam, but as you say there are a lot of not very good e.specs around and when put to the test in the advanced controls they can't steam for toffee.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  12. #12

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    Quote Originally Posted by clam1952 View Post
    You can Order it from Waterstones in the UK £19.99 compared to £57 second hand from Amazon!
    Thanks, I have made a note of that Malc. The copy I read when I was 14 was a library book and it would be really nice to find a copy of the book to call my own.
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  13. #13

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    G'day,

    I've got an e-spec for a similar loco, it's around 5,000 lbf tractive effort at 90 PSI Working Pressure...



    Cheers.

  14. #14

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    Is that e.spec on the DLS Azervich?
    Narcolepsy is not napping.

    HP XW8400 Xeon, Dual E5320 quad core CPUs, 16GB RAM, 1Tb SAS Hard drive, Nvidia GTX 960, Win 7.

  15. #15
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    I'm very surprised that the 2995Valliant ones don't work in cab mode. Normally they are very carefully set up and researched.

    I must remember to look at the Australian stuff available from Azervich when choosing specs for my locos, some are probably quite close to British classes for the 1900s type era.


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