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Johnbs letzte Aktivitäten

  1. Johnb antwortete auf das Thema Bahamas.

    Modern air brake systems use a more sophisticated distributor valve allowing gradual brake release and a faster emergency application. I’m not a driver and stand to be corrected but I would think the operation is a lot more smooth than a vac...

    22 Juni 2026 um 22:10

  2. Johnb antwortete auf das Thema Bahamas.

    Maybe it isn’t which is why I used the term future proof

    22 Juni 2026 um 16:32

  3. Johnb antwortete auf das Thema Bahamas.

    I didn’t know that, I’ve always assumed that the faster action was because of the additional brake pressure

    22 Juni 2026 um 16:04

  4. Johnb gefällt LMS2968s Beitrag in dem Thema Bahamas.

    The different air / vacuum (air pressure in reverse) are compensated by the use of bigger cylinders for a vacuum system so equalising the brake effort. A vacuum brake can be just as effective as an air system although slower acting, hence the...

    22 Juni 2026 um 16:01

  5. Johnb antwortete auf das Thema Bahamas.

    Vacuum brakes certainly are effective, less complicated and easier to maintain than a two pipe air system although less efficient as the maximum braking force is limited to atmospheric pressure, about 15psi I think. The air brake train pipe is...

    22 Juni 2026 um 14:30

  6. Johnb gefällt pete12000s Beitrag in dem Thema Bahamas.

    We also have a Facebook page with pictures showing progress on the overhaul.. And of course a shop Shop - The Bahamas Locomotive Society any income from sales or donations helps with the overhaul or why not join us?

    22 Juni 2026 um 09:46
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