Jet aircraft are powered by jet engines, which work by expelling high-speed exhaust gases to generate thrust. This allows them to fly at high altitudes and speeds, making them ideal for commercial and military use. Common types of jet aircraft include commercial airliners, fighter jets, and cargo planes. The design of jet aircraft typically features a streamlined body and wings that enhance aerodynamic efficiency. They are equipped with advanced navigation and communication systems, ensuring safe and efficient travel. Notable examples of jet aircraft include the Boeing 747 and the F-16 Fighting Falcon.