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Recent content by Ian Umpleby

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    Railway Performance Society "Fastest Times" over the "main" main lines (Jul 2026 edition)

    From the Railway Performance Society's wondrous Archive: 97m 10s by 91011 with plenty of 130 mph and over running. 101m 37s fastest Azuma 102m 30s HST 104m 32s class 90 105m 09s class 180 124m 05s Deltic 142m 36s cl 47 Wooden spoon 255m 44s 60027 (steam version) -------------------------------
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    Welwyn Garden City to Kings Cross - what's the record?

    The Railway Performance Society's Archive has 317 runs nonstop between Welwyn Garden City and Kings Cross all between 1935 and 1968.There have maybe been few timetabled WGC-KGX services since, but I'll leave that to somebody with more time on their hands to find out! For the record on the 17th...
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    Re–calulating mileages after closure/abandonment of original routes?

    When the line's European Signalling System was implemented everything was made metric, distances and speeds, the latter still present today. A zero kilometre point was created at the Zero MP by Sutton Bridge Jn and the series extended all the way to Aberystwyth with kilometre posts at (if I...
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    Class 810 for East Midlands Railway Construction/Introduction Updates

    Great run! The Railway Performance Society's Archive has a fastest 222 run in 59 m 50s, only beaten by an APT run in 58m 30s.
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    Harrogate

    A 20 mph facing crossover, south of the station, from the Down to Up Harrogate at 17m 13ch was put in about 4 years ago to facilitate direct access to platform 3. Ian U
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    Progress on Avanti West Coast's 805/807s Hitachi AT300 sets

    At the recent Railway Performance Society Timing Event class 807s did not exceed 100 mph between Rugby and Birmingham. -----------------------------------------
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    Why does the nonstop Kings Cross to York not feel like a fast train?

    The fastest London Kings Cross to York time in the Railway Performance Society Archive is 97m 10s achieved by 91011 in 1991. There was a lot of 130 mph+ running, with 133 mph maxima, as fully documented in Milepost magazine. The fastest Azuma time is 101m 37s (c 100mins net) with 123 mph...
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    Leeds-Bradford Signalling

    This scenario has been in place from the July 1969 resignalling between Wortley and Laisterdyke which was largely mirrored in the May 2018 scheme. The three aspect signals control the steep (1/100 to 1/146) Bradford-bpund climb where attained speeds were generally lower than line speed in the...
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    How long is the Copley Hill Chord?

    The Railway Performance Society Distance Charts also has 17 chains as the distance.
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    Mileage Check for Swansea/Cardiff to London Euston (route taken by diverted GWR services)

    A quick measure shows it's 4-5 yards longer. ---------------------------------------------------
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    Mileage Check for Swansea/Cardiff to London Euston (route taken by diverted GWR services)

    From the Railway Performance Society’s Distance Charts: The distance from the Buffers at Paddington’s platforms 11/12 (0m 05ch) to Reading footbridge/ nominal centre (36 MP) is indeed 35 m 75 ch, I chain less from 9/10 and 2 less from 1 to 8. The distance from Paddington (Elizabeth Line)...
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    Mileage Check for Swansea/Cardiff to London Euston (route taken by diverted GWR services)

    The Railway Performance Society take on this is Euston Buffer Stops (mean) to Acton ML footbridge 6m 68ch Acton ML footbridge to Patchway 108m 48ch Patchway to Severn Tunnel Jn 11m 13ch Severn Tunnel Junction to Cardiff Central...
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    Progress on Avanti West Coast's 805/807s Hitachi AT300 sets

    Eastbound 805s seem to be accelerating more slowly than usual from the Flint stop over the past 2 days according to signalling data, I am advised. Anybody know whether an emergency temporary speed restriction is in force?
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    New RSSB standards for speed signs

    Signs introduced at Bradford Forster Square this weekend
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    6.30 Bradford Forster Square to London Kings Cross

    The fastest time from Wakefield to Kings Cross in the Railway Performance Society Archive was by 91008 on 13/2/1995 in 100m 30 sec. However, to show what could also be done, a run of mine 3 weeks ago on a Saturday from Wakefield took 103m 32 secs or 99 mins net following signals at Dock Hills...
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