Observation aircraft are specialized planes designed for gathering intelligence and monitoring activities from the sky. They are equipped with advanced cameras, sensors, and sometimes radar systems to capture detailed images and data. These aircraft play a crucial role in military operations, environmental monitoring, and disaster response. Typically, observation aircraft can operate at various altitudes and are often used for surveillance missions. They can be manned or unmanned, with the latter known as drones. The information collected helps in decision-making processes for governments, military forces, and research organizations.