Johnb's Recent Activity
-
Johnb replied to the thread 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...
Jun 22, 2026 at 10:10 PM -
Johnb liked LMS2968's post in the thread 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...
Jun 22, 2026 at 4:01 PM -
Johnb replied to the thread 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...
Jun 22, 2026 at 2:30 PM -
Johnb liked pete12000's post in the thread 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?
Jun 22, 2026 at 9:46 AM