The term "engine configuration" refers to how an aircraft's engines are arranged and connected within its wings or body. There are several different types of engine configurations, each with their own advantages and disadvantages in terms of performance, fuel efficiency, noise levels, and maintenance requirements. Some common engine configurations include the radial engine, where the cylinders are arranged around a central crankshaft; the inline engine, where cylinders are arranged in a straight line; and the jet engine, which uses air intake at the front and exhaust at the back to create thrust through a series of compressors and turbines. The specific engine configuration used by an aircraft can have a significant impact on its overall performance and efficiency, as well as its noise levels and maintenance requirements.