NASA starts testing more fuel efficient jet engine tech

A group of engineers have developed a new jet engine tech that can improve planes' fuel efficiency by four to eight percent, and NASA has begun testing it out. They created a new type of engine propulsor -- composed of the fan and a part called the inlet, which directs air into the engine -- designed to be embedded into a jet plane's body. Jet engines are typically placed away from the aircraft's surface, because of a highly distorted film of air called the boundary layer that… (www.engadget.com) 更多...