The Dornier Do-335 used a push-pull engine arrangement to reduce drag and eliminate asymmetric thrust. Flight testing showed speeds unmatched by other piston aircraft, along with strong climb and ...

From 1945 to 1955, a British aeronautical company called Napier & Son produced not just one but two versions of an intricate hybrid piston engine, which they named the Napier Nomad. The post-World War ...