The shapes of aircraft wings vary significantly from one aircraft to another, and this difference is not related to appearance alone. Rather, it reflects the nature of the missions for which the aircraft is designed and the operating conditions in which it performs. The wings of commercial aircraft are primarily designed to achieve high flight efficiency, reduce fuel consumption, and provide stability and the ability to carry large loads over long distances. In contrast, military aircraft focus more on high speed, maneuverability, and rapid response during flight. Most commercial aircraft feature wings with suitable dimensions and aspect ratios that help generate sufficient lift while reducing aerodynamic drag. Their wings are often swept backward at carefully calculated angles, a design that helps the aircraft fly efficiently at relatively high speeds during cruising. Commercial aircraft wings also contain control surfaces and movable components, such as flaps and ailerons, which assist in controlling the aircraft and improving takeoff and landing performance, particularly at low speeds. Military aircraft, on the other hand, require more diverse wing designs because of the variety of missions they perform. They may be required to fly at supersonic speeds, perform sharp maneuvers, operate at different altitudes, or carry various weapons and equipment. As a result, military aircraft may feature delta wings, highly swept wings, variable-sweep wings, and other designs intended to achieve a balance between speed, maneuverability, and stability. The shape of a wing directly affects the relationship between lift, aerodynamic drag, and aircraft speed. A wing that provides high efficiency during steady cruising may not be the best choice for extremely high-speed flight or sharp maneuvers. Therefore, wing design aims to achieve the best possible performance according to the specific mission, while taking into account aircraft weight, materials, aerodynamic conditions, and safety requirements. The differences between commercial and military aircraft wings provide a clear example of the importance of engineering design in aviation. Every curve, angle, and dimension of a wing is determined according to precise scientific and engineering requirements to achieve the desired performance with the highest possible efficiency. Therefore, the shape of an aircraft wing is not simply an aesthetic feature; it is one of the most important factors determining the aircraft's ability to fly, its speed, maneuverability, and operational efficiency. Assist. Lecturer Al-Boraq Hayder Mohsin