Sentinel Steam Loco 7109

The last episode of the Worthington-Simpson Boiler feed pump destined for the cab left a cliff-hanger: it was merrily allowing air to be bl...

In February 2011, I attended the Sentinel Drivers' Club AGM in Basingstoke. In conversation after the formalities, I met Norman Smedley ...

After repairs, a boiler has to pass an initial hydraulic test (water) at 1.5 times working pressure to ensure that it is physically sound. T...

As background to the restoration of Sentinel 7109, I've visited some other Sentinel locos and, in some cases, done a pretty thorough pho...

The blowdown valve is used for clearing out (blowing down) accumulated scale, rust and assorted particles from the bottom of the boiler. 710...