Ultralight aircraft are lightweight, one- or two-seat planes that are designed for recreational flying. They typically weigh less than 254 pounds (115 kg) and have a maximum fuel capacity of 5 gallons (19 liters). These aircraft are often used for personal enjoyment, flight training, and aerial photography, offering a simple and affordable way to experience flying. Due to their lightweight design, ultralights can take off and land in shorter distances compared to traditional aircraft. They are subject to specific regulations set by aviation authorities, such as the Federal Aviation Administration (FAA) in the United States, which ensures safety and compliance in their operation.