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  1. Hermod
    Post

    Tornado

    In five years time coalburning on a grate will be disgusting and not bring cash. Chalapon by Hermod posted Feb 7, 2024 at 4:05 PM The pipe over...
    Post by: Hermod, Mar 26, 2025 in forum: Steam Traction
  3. Hermod
    Post

    Tornado

    https://de.wikipedia.org/wiki/Kesselzerknall_in_Meiningen Interesting A LNW&R boiler blew up 5 years after WW1. Unskilled,badly supervised...
    Post by: Hermod, Mar 25, 2025 in forum: Steam Traction
  4. Hermod
    Post

    Tornado

    It is not easy to imagine how (repair of/welding on) barrel or firebox wrapper can make boiler shorter. A more likely happening: A picture from...
    Post by: Hermod, Mar 22, 2025 in forum: Steam Traction
  5. Hermod
    Post

    P2 Locomotive Company and related matters

    Thank You for an explanation of the newer knowledge that gives hope for succes even if it is not following the shining light from Chapelon
    Post by: Hermod, Mar 22, 2025 in forum: Steam Traction
  6. Hermod
    Post

    P2 Locomotive Company and related matters

    Thank You for a clear update on poppet valve gears. Franklin B sounds like a good solution for having three cylinders driving unto second driver...
    Post by: Hermod, Mar 22, 2025 in forum: Steam Traction
  7. Hermod
    Post

    P2 Locomotive Company and related matters

    Mr Chapelon had a lot of expirience with poppet valves and chose piston valves for his last significant steam-locomotive 242A1 in 1946. What new...
    Post by: Hermod, Mar 20, 2025 in forum: Steam Traction
  8. Hermod
    Post

    P2 Locomotive Company and related matters

    K4 was constructed before 1914. In 1929Chapelon tested a modified pacific from 1907 and achieved more. Anno before Chapelon or after Chapelon...
    Post by: Hermod, Mar 19, 2025 in forum: Steam Traction
  9. Hermod
    Post

    P2 Locomotive Company and related matters

    Have read Brian Read about 50 Pennsylvania T1 that had oscillating cam poppet-valve gear Franklin A that were difficult to maintain. A single...
    Post by: Hermod, Mar 17, 2025 in forum: Steam Traction
  10. Hermod
    Post

    P2 Locomotive Company and related matters

    It will ease design of valve gear if we limit max rpm.. No Blue Peter re-enacting. What max speed for P2 newbuild? Big ship diesels to day run...
    Post by: Hermod, Mar 17, 2025 in forum: Steam Traction
  11. Hermod
    Post

    Bulleid Pacifics - Past or Present

    WP_20250308_001[1] by Hermod posted Mar 8, 2025 at 9:14 PM Not really. Picture shows some(3 -4-5 or 6?) 3 inch circulator pipes from over...
    Post by: Hermod, Mar 8, 2025 in forum: Steam Traction
  12. Hermod
    Media

    WP_20250308_001[1]

    Uploaded by: Hermod, Mar 8, 2025, 0 comments, in album: Pictures from Hermod
  13. Hermod
    Post

    Bulleid Pacifics - Past or Present

    New to me that boiler efficiency was measured and evaluated during interchange trials? Sounds more like a Rugby job. My source was Cox.
    Post by: Hermod, Mar 6, 2025 in forum: Steam Traction
  14. Hermod
    Post

    Bulleid Pacifics - Past or Present

    Thank You for a very interesting update on syphons knowledge. Are the test files You mention accessible somewhere? I read french well enough...
    Post by: Hermod, Mar 6, 2025 in forum: Steam Traction
  15. Hermod
    Post

    Bulleid Pacifics - Past or Present

    Britania was 42 sq grate, max evaporation 31410lbs/h boiler efficiency 66% MN unrebuilt 48.5 sq grate, max steam 34000 efficiency 61% Max IHP...
    Post by: Hermod, Mar 5, 2025 in forum: Steam Traction
  16. Hermod
    Post

    A Southern Railway query

    Have just ordered a copy .11$ and 6£ postage .From a library in UK selling superfluous books. We are leaving stage fast ,but promised delivery 26...
    Post by: Hermod, Mar 4, 2025 in forum: Steam Traction
  17. Hermod
    Post

    Bulleid Pacifics - Past or Present

    Have You read the Bulletin 10 from BTC and can give us a link? I would love to read it myself. Maybe Syphons were put in because Chapelon had...
    Post by: Hermod, Mar 4, 2025 in forum: Steam Traction
  18. Hermod
    Post

    Bulleid Pacifics - Past or Present

    Was locomotives with copper fireboxes cut up faster than those with Steel?
    Post by: Hermod, Mar 3, 2025 in forum: Steam Traction
  19. Hermod
    Post

    Current and Proposed New-Builds

    The fascinating story of Webb is that he changes to fourcylinder 4-4-0 compounds in 1897. A lot of autocrats would not have had the spine to do...
    Post by: Hermod, Feb 23, 2025 in forum: Steam Traction
  20. Hermod
    Post

    Current and Proposed New-Builds

    William Pickersgill and the Caledonian Raiway 956 class Locomotives ISBN 9781911038054 Constructed same time as NER S3/B16 and just as...
    Post by: Hermod, Feb 22, 2025 in forum: Steam Traction
  21. Hermod
    Post

    Current and Proposed New-Builds

    It is a very interesting locomotive. There was a smaller wheels version called John Hicks class for mixed traffic. Before the last of these went...
    Post by: Hermod, Feb 21, 2025 in forum: Steam Traction
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