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LMS2968's Recent Activity

  1. LMS2968 replied to the thread Proposed New-Builds.

    I'm not aware of any head-to-head tests, but both classes were subject to dynamometer car tests and also had a twirl on the rollers at Rugby. You'd need to find the individual results and try to match them up. Unless they were seeking the same...

    Sep 19, 2017 at 3:02 PM
  2. LMS2968 replied to the thread Proposed New-Builds.

    4767 was tested against 4757 (Caprotti), 4764 (Walschaerts) and 4766 (Walschaerts with double chimney) in July and August 1949. These tests were conducted on the St Pancras - Manchester route with 310 ton trains. The reported noted, "... there...

    Sep 19, 2017 at 2:00 PM
  3. LMS2968 replied to the thread David Shepherd (RIP) and his locomotives..

    They certainly weren't well thought of; their sole purpose was to fill a gap which the British builders couldn't fill, being somewhat over-committed at the time. Once they were able to fulfil the orders, the Yanks had completed their function....

    Sep 17, 2017 at 1:56 PM
  4. LMS2968 liked Steve's post in the thread Flying Scotsman.

    Tom's adequately stated why locos had domes. Just to add that the regulator takes up vertical space as can be seen. As boilers got bigger and domes smaller the conventional vertical regulator could not be used. Stanier locos, for example,...

    Sep 16, 2017 at 5:40 PM
  5. LMS2968 liked Jamessquared's post in the thread Flying Scotsman.

    In a boiler, there isn't a clean transition between water and steam. Above the water level, the surface is turbulent and there is a layer of froth and bubbles. So if the steam take-off is too close to the water level, you risk sucking some of...

    Sep 16, 2017 at 9:10 AM
  6. LMS2968 liked Hirn's post in the thread Proposed New-Builds.

    Some people really don't get on with Facebook could I suggest: by all means as well as but not instead of the King George the Fifth website.

    Sep 15, 2017