An ultralight aircraft is a small, lightweight aircraft that is designed to be flown by a single person. Ultralights are typically used for recreational purposes and are often considered to be a more affordable and accessible alternative to traditional aircraft.

Ultralights are usually made from lightweight materials such as aluminum tubing, fabric, and composite materials. They are generally powered by small engines, such as two-stroke or four-stroke engines, and are designed to fly at low altitudes and at relatively low speeds.

In many countries, ultralights are classified as a separate category of aircraft, with their own regulations and requirements for operation. These regulations often specify maximum weight and speed limits, as well as requirements for pilot certification, training, and safety equipment.

There are many different types of ultralights, including fixed-wing aircraft, powered parachutes, trikes, and gyroplanes. Each type has its own unique characteristics and capabilities, but they all share the common features of being lightweight, low-powered, and relatively easy to operate.

Overall, ultralights offer an affordable and accessible way for individuals to experience the thrill of flying, while also providing a platform for aviation enthusiasts to experiment with new designs and technologies. However, as with any form of aviation, safety should always be a top priority when operating an ultralight.