Since the appearance of 19 14 submarine, all countries have used airships and seaplanes to deal with submarines. At that time, only visual and telescope search was used, which posed little threat to submarines. At the end of World War I, Britain began to use shore-based aircraft for anti-submarine, and adopted an original sonar system. During the Second World War, Britain and the United States used sonar buoys, airborne radars and searchlights to search and attack submarines with torpedoes, depth charges and mines, and achieved good results. Since 1950s, anti-submarine helicopters and suspended sonar systems have been in use. The appearance of nuclear submarines puts forward higher requirements for anti-submarine systems.

The total weight of anti-submarine aircraft is generally more than 50 tons, and it can patrol at a speed of 300-400 km/h at an altitude of hundreds of meters, and its battery life exceeds 10 hour.

The total weight of shipborne antisubmarine aircraft is about 20 tons. Based on the aircraft carrier, it undertakes the anti-submarine mission in the fleet area, and its flight speed is high subsonic. Anti-submarine helicopters are usually carried on ordinary ships, which can improve the anti-submarine capability of the ships themselves.

Anti-submarine seaplanes can stop on the water and hang sonar. Because of the large hull resistance and short voyage, they can only perform anti-submarine missions in the offshore.

Modern airborne submarine search equipment includes sonar buoy, suspended sonar, magnetic controller, anti-submarine radar, infrared detector, waste gas detector, core radiation detector, photoelectric equipment, side-looking radar and so on.

1 965438+On August 26th, 2005, the British Air Force 1 biplane bomber accidentally spotted the1German submarine while flying over the northwest waters of Belgium, and immediately dropped two bombs, hitting the rear of the submarine and fleeing quickly after being injured. Although the submarine was not sunk, the victory of the first battle made countries look at the anti-submarine of the aircraft with new eyes.

1 965438+In August 2006, the Austrian Lonell biplane suddenly attacked the1British submarine moored in the Venetian port, causing the British submarine to sink. This has become a real anti-submarine war.

During World War II, major naval countries began to equip aircraft with equipment suitable for detecting and attacking submarines, and since then, anti-submarine aircraft specially used for anti-submarine warfare have been born. By the beginning of 1942, there were more than 400 British anti-submarine aircraft and more than 300 German anti-submarine aircraft. During the whole World War II, the aircraft sank 4 12 submarines, accounting for 37% of the submarine losses at that time.