1. According to the purpose of the aircraft, there are civil aircraft and state aircraft.
National aviation aircraft refers to aircraft used by the military, police and customs.
Civil aircraft mainly refers to and helicopters.
Civil aircraft refers to civil passenger aircraft, cargo aircraft and passenger and cargo aircraft.
2. Depending on the type of aircraft engine, there are propeller aircraft and jet aircraft.
Propeller historical aircraft, including piston propeller aircraft and turboprop aircraft, aircraft engines are piston propeller type, which is the most primitive form of power.
It uses the rotation of the propeller to push the air behind the plane, and its reaction force to propel the plane forward.
The higher the propeller speed, the faster the flight speed.
Jet aircraft, including vortex jet and vortex fan jet.
The advantages of this type of machine are simple structure, fast speed, generally up to 500-600 miles per hour;
Fuel cost saving, large loading capacity, generally can carry 400-500 passengers or 100 tons of cargo.
3. According to the number of aircraft engines, there are single-engine (motor) aircraft, twin-engine (motor) aircraft, three-engine (motor) aircraft and four-engine (motor) aircraft.
4. According to the speed of flight, there are subsonic aircraft and supersonic aircraft.
Subsonic aircraft are divided into low-speed aircraft (flying speed less than 400 km/h) and high-subsonic aircraft (flying speed Mach number is 0.8-8.9).
Most jet planes are highly subsonic.
5. Depending on the distance of the aircraft, there are short, medium and long range aircraft.
The long-range aircraft has a range of about 1,100km and can perform intercontinental cross-sampling flights without having to land halfway.
Medium-range aircraft have a range of about 3,000 kilometers, while short-range aircraft typically have a range of less than 1,000 kilometers.
Short-range aircraft are commonly used in feeders and are therefore also called feeders.
Medium – and long-range aircraft are commonly used for domestic and international routes, also known as mainline aircraft.
According to passenger seat number of our country Civil Aviation Administration adopts large, medium and small plane.
Smaller planes have fewer than 100 passenger seats, medium planes have fewer than 100 to 200 passenger seats, and large planes have more than 200 passenger seats.
The range is below 2400km, the medium range is between 2400-4800Km, and the long range is above 4800KM.
But classification criteria are relative.
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