Recent Blogs
Bartrum and Powell Rotary Engine
How the Bartrum and Powell rotary steam engine works — abutment vane geometry, sealing limits, indicated power formula, and a worked rebuild example.
Knickerbocker Four Piston Rotary Engine
How the Knickerbocker four piston rotary steam engine works — geometry, indicated horsepower formula, worked example, and troubleshooting for heritage restorers.