Sentinel Steam Loco 7109

Back in April 2013, in a previous article , I wrote about the curved main steam pipe which was to be remade by Mendip Steam Restorations. It...

Having settled on the GL-1 Jet Pump ejector running at 60 psi in Vacuum Braking (3) Design (2) , here are the next three challenges: 1. Ho...

Having laid down the requirements and played with some design ideas , now it's time to start making some decisions and begin the shoppi...

In Vacuum Braking (1) Requirements I set out the way I was thinking about approaching Sentinel 7109's vacuum braking system. Here I...

Ejector Construction (from Penberthy literature ) Background As an industrial shunter, Sentinel 7109 never had train braking equipmen...