I’m not sure if any engine built today will still be salvageable 100 years from now. Not to sound like a grump, but so much relies on computers that will surely be obsolete by then. And let’s not get ...

Gabriel Voisin was an aviation pioneer who progressed into the car business after the First World War using Knight-type sleeve-valve engines. Designed by American Charles Yale Knight yet perfected in ...

Continental, a successful manufacturer of automotive engines, purchased the rights for a Burt-McCollum single-sleeve valve engine design in 1925. Believing this technology might replace poppet valves ...

The Napier E124 Two-Stroke H-24 Diesel airplane engine was designed in the ‘30s. The dual horizontally opposed engine displaced 75 liters and had 24 cylinders and a gas turbine. It was superseded by ...