At this point, which has covered the most milage, Green Goddess or Flying Scotsman? It seems like it should be Flying Scotsman with ease. However...
Can someone explain how decreasing cutoff percent works with regards to too much steam limiting top speed. I understand mechanically what is...
Not sure where to put this thread so if it's in the wrong place, I apologise in advance. If you aren't aware of aerogel here's the wikipedia...
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