An aircraft designer is a professional who specializes in creating and developing aircraft, including airplanes and helicopters. They use principles of engineering, aerodynamics, and materials science to design safe and efficient flying machines. Their work involves creating detailed plans and specifications, often using computer-aided design (CAD) software to visualize and test their ideas. Aircraft designers collaborate with other experts, such as aerospace engineers and manufacturers, to ensure that their designs meet safety regulations and performance standards. They also consider factors like fuel efficiency, cost, and environmental impact during the design process. Their contributions are essential for advancing aviation technology and improving air travel.