Complex sentence: Lockheed designed the Cheyenne using a four-blade rigid-rotor system and configured the aircraft as a compound helicopter with low-mounted wings and a tail-mounted thrusting propeller driven by the General Electric T64 turboshaft engine.
Split into simpler sentences: Lockheed designed the Cheyenne using a four-blade rigid-rotor system and configured the aircraft as a compound helicopter. It also featured low-mounted wings, a tail-mounted thrusting propeller, and a single General Electric T64 turboshaft engine.