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  1. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Rather than manufacturing data ( your three points ) why not plot existing data eg ex Rugby records within the NRM, Swindon, BTC Bulletins, 1948...
    Post by: Maunsell907, Feb 10, 2024 in forum: Steam Traction
  3. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    V2 Boiler pressure. 220 psi Heating area 2431 sq.ft Superheater 680 sq. ft Grate 41.25 sq.ft Cylinders 3 off 18.5” x 26” A1 Boilerpressure 250psi...
    Post by: Maunsell907, Feb 9, 2024 in forum: Steam Traction
  4. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    I think the fastest existing steam recording Darlington York ( as per the RPS archive ) was made on the 24/6/1958 on the 17.05 Newcastle KX. Loco...
    Post by: Maunsell907, Feb 8, 2024 in forum: Steam Traction
  5. Maunsell907
    Post

    Flying Scotsman

    Far be it for me as a life long Southern enthusiat who now spends much of his time on a former GWR branch line to intrude on a LMS/LNER spat but…....
    Post by: Maunsell907, Jan 30, 2024 in forum: Steam Traction
  6. Maunsell907
    Post

    Flying Scotsman

    I suspect, but do not know, that the Double chimney on the Jubilee was merely fitted as a direct replacement. I would be happy to be proven wrong...
    Post by: Maunsell907, Jan 29, 2024 in forum: Steam Traction
  7. Maunsell907
    Post

    Flying Scotsman

    I thought I had been involved in a discussion wrt the Jubilee double chimney. Please see attached.[ATTACH] Michael Rowe
    Post by: Maunsell907, Jan 29, 2024 in forum: Steam Traction
  8. Maunsell907
    Post

    Flying Scotsman

    Tom, three of the examples I quoted were from Messrs Nock, Nelson and Weight who were on the footplate. In the case of Nock and Nelson their...
    Post by: Maunsell907, Jan 29, 2024 in forum: Steam Traction
  9. Maunsell907
    Post

    Flying Scotsman

    Perhaps there is no reference to the Jubilee with double chimney because there was only one, fitted very late on during BR and there is no...
    Post by: Maunsell907, Jan 28, 2024 in forum: Steam Traction
  10. Maunsell907
    Post

    Flying Scotsman

    Your post has encouraged me to read AJP’s comments ( he travelled on the Thames Forth, apparently losing10 minutes from Edinburgh to Carlisle...
    Post by: Maunsell907, Jan 28, 2024 in forum: Steam Traction
  11. Maunsell907
    Post

    Flying Scotsman

    On occasion IMHO perhaps he expresses absolute certainty where others might be more circumspect ! Michael Rowe
    Post by: Maunsell907, Jan 26, 2024 in forum: Steam Traction
  12. Maunsell907
    Post

    Flying Scotsman

    I have only just caught up with this discussion. I am slightly confused as to whether the discussion driver is livery or performance, Some...
    Post by: Maunsell907, Jan 26, 2024 in forum: Steam Traction
  13. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Thanks. Your post has spurred me on to delve a little. Nock’s first publication of the 46251 log was in the June 1961 Railway Magazine. p.422 He...
    Post by: Maunsell907, Jan 2, 2024 in forum: Steam Traction
  14. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Thanks, it is some years since I read the Gooch diaries. I suppose we should give credit to Harrison for endeavouring in the “Hurricane” an#...
    Post by: Maunsell907, Jan 2, 2024 in forum: Steam Traction
  15. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Tom, in defence of Brunel ( although he is IMHO praised more than enough ) “Hurricane” and “Thunderer” were built by Hawthorns under a stipulation...
    Post by: Maunsell907, Jan 2, 2024 in forum: Steam Traction
  16. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    OSNock has given details in three of his books of a log behind 46251 with 13/444/465 tons between Glasgow and Carlisle on the ‘Mid Day Scot’ The...
    Post by: Maunsell907, Dec 31, 2023 in forum: Steam Traction
  17. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Good question. I am not aware of any Test figures ( although there may be some within the various post WWII tests ) for a 20% following wind but I...
    Post by: Maunsell907, Dec 31, 2023 in forum: Steam Traction
  18. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Simon: My R includes air resistance and was dependent on data from road Tests; Ell (twixt Swindon and Slough) and Andrews ( March Norwich and a...
    Post by: Maunsell907, Dec 31, 2023 in forum: Steam Traction
  19. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    Simon, I have used loco resistance figures ( this includes air, mechanical and rail ) based on established quadratic equations, which were...
    Post by: Maunsell907, Dec 31, 2023 in forum: Steam Traction
  20. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    There are two major reservations wrt COT IMHO I.e. CRM’s timings, 1/5 th second stopwatch and did COT have the power. CRM’s successive quarters...
    Post by: Maunsell907, Dec 30, 2023 in forum: Steam Traction
  21. Maunsell907
    Post

    Steam speed records including City of Truro and Mallard

    This from David Slee in Australia may be of interest Michael Rowe
    Post by: Maunsell907, Dec 29, 2023 in forum: Steam Traction
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