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std tank's Recent Activity

  1. std tank replied to the thread BR Double blastpipes.

    I have similar thoughts, but it is a fact that the damper apertures were wrong.

    Aug 2, 2026 at 1:15 PM

  2. std tank replied to the thread BR Double blastpipes.

    Royal Scot 46165 spent 6 months at Rugby Testing Station in 1955/56. There were modifications made, but it is doubtful that more than a few Scots received these modifications.

    Aug 2, 2026 at 12:04 PM

  3. std tank replied to the thread BR Double blastpipes.

    The major problem with 71000 was that the damper apertures in the original ashpan were much smaller than what was shown on the ashpan drawing. This led to 71000 being a very poor steamer in BR days. In preservation this was corrected. The...

    Aug 2, 2026 at 11:45 AM

  4. std tank liked jma1009's post in the thread BR Double blastpipes.

    It's not a question of blast nozzle sizes. It is an assessment also of the distance of the blast nozzle to 'choke' dimension, and the diameter of the 'choke' and design of the petticoat pipe and bottom flare, and the 'L' length above the choke to...

    Aug 1, 2026 at 7:13 PM

  5. std tank replied to the thread BR Double blastpipes.

    One wonders what Sam Ell would say about your comments.

    Aug 1, 2026 at 12:10 PM

  6. std tank liked Jimc's post in the thread Oil Firing.

    Except that it was a blind alley. Whether it was bad luck or bad judgement, the GWR copped a number of these:- Atmospheric haulage, Broad Gauge, Fishguard/Irish development, Oil firing, Gas Turbines, Diesel hydraulics. Quite possibly more...

    Aug 1, 2026 at 10:40 AM

  7. std tank replied to the thread BR Double blastpipes.

    The double blast pipe caps are all of Swindon design to drawing No. SL/SW 1310.

    Jul 31, 2026 at 8:44 PM

  8. std tank replied to the thread BR Double blastpipes.

    I take it that you are talking about the diameter at the top of the blastpipe caps? Castle single ? double 3-7/8" King single ? double 4" Std 4 4-6-0 single 4-5/8" double 3-3/4" Std 9 2-10-0 single 5-3/8" double 4"

    Jul 31, 2026 at 6:49 PM

  9. std tank replied to the thread Oil Firing.

    In the NRM's Drawings Archive for Derby Works there is a listing for Derby Numerical Series Drawings. In this list there are approx 50 drawings for various oil firing components. The prefix for the drawing numbers is D5/T1. The LMS locomotive...

    Jul 30, 2026 at 1:51 PM
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