Sentinel Steam Loco 7109

My previous main steam pipe article was at the stage of it being persuaded into a shape that should fit. In practice, it wasn't that ea...

After a few months of apparent inactivity with Sentinel 7109, things have actually been happening (although much of my time of late has been...

Years ago, my mother recounted the story of her first driving lesson in which, once she had got the car moving, her main concern was how on ...

I have to admit to being mildly excited! I'd previously been unable to include an article on Sentinel 7109's Jet Pump (Vacuum Exhaus...

One difficulty with Sentinels is that the 275 psi boiler pressure is above the 250 psi rating of many off-the-shelf valves. At 275 psi, wate...