Recent Blogs
Ritter Rotary Engine
How the Ritter Rotary Engine works — a 19th-century rotary steam engine using sliding abutments and a drum piston. Theory, formula, worked example, and restoration...
Kipp Rotary Piston Engine
Kipp rotary piston engine explained — how the oscillating piston converts steam pressure to shaft rotation, with sizing math and a heritage demonstration build.
Forrester Rotary Engine
Forrester rotary engine explained — abutment geometry, sealing tolerances, and worked sizing for heritage steam restorations in mills and pumping stations.