𝐇𝐨𝐰 𝐢𝐬 𝐚 𝐟𝐢𝐠𝐡𝐭𝐞𝐫 𝐣𝐞𝐭 𝐞𝐧𝐠𝐢𝐧𝐞 𝐝𝐢𝐟𝐟𝐞𝐫𝐞𝐧𝐭 𝐟𝐫𝐨𝐦 𝐚 𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐢𝐚𝐥 𝐣𝐞𝐭 𝐞𝐧𝐠𝐢𝐧𝐞?
The main difference between a fighter jet engine and a commercial jet engine is the amount of air that bypasses the core of the engine. The core of the engine is where the air is compressed, mixed with fuel, ignited, and expanded through a turbine. The bypass air is the air that flows around the core and exits through a nozzle at the rear of the engine.
A commercial jet engine is usually a high-bypass turbofan engine, which means that most of the air that enters the engine bypasses the core and is accelerated by a large fan at the front of the engine. This type of engine is very efficient, quiet, and reliable, as it produces a lot of thrust with relatively low fuel consumption and noise. A high-bypass turbofan engine is ideal for long-distance flights at subsonic speeds, which are typical for commercial airliners.
A fighter jet engine is usually a low-bypass or no-bypass turbofan or turbojet engine, which means that most or all of the air that enters the engine goes through the core and is accelerated by a smaller fan or no fan at all. This type of engine is very powerful, fast, and responsive, as it produces a lot of thrust with relatively high exhaust velocity and temperature. A low-bypass or no-bypass turbofan or turbojet engine is ideal for short-distance flights at supersonic speeds, which are typical for military fighter jets.
An afterburner is a device that injects more fuel into the exhaust stream of the engine and ignites it, creating more thrust and heat. An afterburner can boost the performance of a fighter jet engine by up to 50%, but it also consumes a lot of fuel and creates a lot of noise. An afterburner is rarely used by commercial jet engines, as it is not economical or environmentally friendly.
The main difference between a fighter jet engine and a commercial jet engine is the amount of air that bypasses the core of the engine. The core of the engine is where the air is compressed, mixed with fuel, ignited, and expanded through a turbine. The bypass air is the air that flows around the core and exits through a nozzle at the rear of the engine.
A commercial jet engine is usually a high-bypass turbofan engine, which means that most of the air that enters the engine bypasses the core and is accelerated by a large fan at the front of the engine. This type of engine is very efficient, quiet, and reliable, as it produces a lot of thrust with relatively low fuel consumption and noise. A high-bypass turbofan engine is ideal for long-distance flights at subsonic speeds, which are typical for commercial airliners.
A fighter jet engine is usually a low-bypass or no-bypass turbofan or turbojet engine, which means that most or all of the air that enters the engine goes through the core and is accelerated by a smaller fan or no fan at all. This type of engine is very powerful, fast, and responsive, as it produces a lot of thrust with relatively high exhaust velocity and temperature. A low-bypass or no-bypass turbofan or turbojet engine is ideal for short-distance flights at supersonic speeds, which are typical for military fighter jets.
An afterburner is a device that injects more fuel into the exhaust stream of the engine and ignites it, creating more thrust and heat. An afterburner can boost the performance of a fighter jet engine by up to 50%, but it also consumes a lot of fuel and creates a lot of noise. An afterburner is rarely used by commercial jet engines, as it is not economical or environmentally friendly.