The Aircraft Owners and Pilots Association (AOPA) is a non-profit organization based in the United States that advocates for general aviation pilots and aircraft owners. Founded in 1939, AOPA provides resources, education, and support to its members, promoting safety and accessibility in aviation. AOPA also engages in legislative efforts to protect the interests of general aviation. The organization offers various services, including flight training resources, insurance options, and access to aviation-related information, helping to enhance the flying experience for its members and ensure the future of general aviation.