In 1917, Peter Cooper and Elmer A. Sperry invented the first automatic gyroscopic stabilizer, a device that allowed the aircraft to maintain a balanced forward flight, and the unmanned aerial vehicle was born.This technical achievement successfully transformed the U.S. Navy Curtiss N-9 trainer into the first radio-controlled unmanned aerial vehicle (UAV).The Sperry Aerial Torpedo flew 50 miles with a 300-pound bomb, but it never fought.The types of unmanned aerial vehicles are basically classified according to the distance that the data can be transmitted and the airborne time: the initial classifications are: close-range, medium-range, long-range, and airborne, and later evolved into: Tactical UAV (Outrider), medium-distance long-endurance (Predator), high-altitude long-time (Global Hawk) and other UAV types.In addition, the size of the vehicle can be divided into super-large, large, medium, small and micro, but the main classification is still based on the task airspace and airborne time to be performed. At present, the types of unmanned aerial vehicles are explained:4. Short distance: refers to the weight of less than 200 kg, the maximum flight altitude of 3,000 meters, and the data transmission distance of 30-70 kilometers. Its application range is bomb damage assessment, reconnaissance, and mine detection.5. Medium distance: refers to the weight between 150-500 kilograms, the maximum flight altitude of 3,000-5000 meters, and the data transmission distance of 70-200 kilometers. Its application range is bomb damage assessment and chemical weapons sampling.6. Long-distance: refers to the weight of about 500 kg, the maximum flight altitude of 5,000 meters, and the data transmission distance of 200-500 kilometers. Its application range is bombing damage assessment and communication relay.7. Endurance type: refers to the weight between 500-15,00 kg, the maximum flight altitude of 5,000-8,000 meters, and the data transmission distance of more than 500 kilometers. Its application range is bomb damage assessment, reconnaissance, electronic warfare, and communication relay.8. Medium-distance and long-endurance type: refers to the weight between 1,000-1,500 kg, the maximum flight altitude of 5,000-8,000 meters, and the data transmission distance of more than 500 kilometers. Its application range is bombing damage assessment, reconnaissance, electronic warfare, communication relay , weapon delivery.9. High-altitude long-duration type: refers to the weight between 25,000-12,500 kg, the maximum flight altitude of 15,000-20,000 feet, and the data transmission distance of more than 2,000 kilometers. Its application range is bomb damage assessment, reconnaissance, electronic warfare, communication relay, booster Intercepting launch vehicles and airport security.You must be logged in to post a comment.