According to the different classification standards, aircraft can be divided into the following methods: 1. According to the purpose of aircraft, there are civil aviation aircraft and national aviation aircraft.
National aviation aircraft refers to the aircraft used by the military, police and customs, civil aviation aircraft mainly refers to and helicopter, civil aircraft refers to civil passenger aircraft, cargo aircraft and passenger cargo aircraft.
2. According to 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 engines of the aircraft, there are single engine (engine) aircraft, twin-engine (engine) aircraft, three-engine (engine) aircraft and four-engine (engine) aircraft.
4. According to the flight speed, there are subsonic aircraft and supersonic aircraft, subsonic aircraft is divided into low speed aircraft (flight speed less than 400 km/h) and high subsonic aircraft (flight speed Mach number is 0.8-8.9).
Most jet aircraft are highly subsonic.
5. According to the range of the aircraft, there are short-range, medium-range and long-range aircraft.
The long-range plane has a range of about 1,100 kilometers and can fly across continents without landing.
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 generally used for regional jets, so they are also called regional jets.
Medium – and long-range aircraft are generally used for domestic and international routes, also known as trunk aircraft.
Our General Administration of Civil Aviation is adopted by the plane passenger seat number division large, medium and small aircraft, aircraft passenger seat number in the following 100 small, between 100-200 is medium, more than 200 is large.
Those with a range of less than 2400km are short-range, those between 2400-4800Km are medium-range and those above 4800KM are long-range.
But classification criteria are relative terms.
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