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Dag Bonnedal's Recent Activity

  1. Dag Bonnedal replied to the thread Rampton Trust - SOTILLOS.

    Shure, alot. Our two superheated 2-6-2T locos, Nos. 4 and 9, built by Motala, Sweden in 1914 and 15 are only 16.7 tons (even smaller than Russel) and rather low degree superheat....

    Sep 18, 2017 at 11:12 PM
  2. Dag Bonnedal posted a new thread.

    Rampton Trust - SOTILLOS

    Stumbled across a paper in the Austrian technical magazine Die Locomotive 1912 about the 0-6-2T loco Borsig 6022/1906, Hulleras de Sabero No. 7, now in the Rampton Trust collection:...

    Forum: Narrow Gauge Railways

    Sep 18, 2017 at 8:55 PM
  3. Dag Bonnedal liked Jamessquared's post in the thread Conditions inside a boiler.

    As a spin-off from the Flying Scotsman thread, I came across these videos that filmed the conditions inside a boiler in operation (via a small viewing port). The actual boiler is stationary plant, rather than a locomotive boiler, but there is a...

    Sep 18, 2017 at 11:54 AM
  4. Dag Bonnedal replied to the thread Signal Box Electricity Supplies.

    ... and very ingenuitive technique to make everything very power efficient. As an example from the UK, even into the 70:ies semaphores on the Welsh lines had kerosene lamps with bimetal thermal switches to continuously monitor their function. In...

    Sep 15, 2017 at 8:47 PM