* Jet engines are measured in thrust, not horsepower: Horsepower is used to measure the power of engines that rotate a shaft, like car engines. Jet engines don't rotate a shaft; they create thrust by accelerating air.
* Thrust varies greatly: Jet engines come in a huge range of sizes and designs. A small, single-engine jet might produce 1,000 pounds of thrust, while a massive turbofan engine on a Boeing 747 could generate over 70,000 pounds of thrust.
* Thrust changes with altitude and speed: A jet engine's thrust isn't constant. It varies depending on the altitude and speed of the aircraft.
So, how can we talk about jet engine power?
* Thrust: We typically describe the power of a jet engine by its thrust, measured in pounds (lbs) or kilograms (kg). For example, a certain engine might produce 10,000 lbs of thrust at takeoff.
* Specific Thrust: A more technical measure is specific thrust, which is thrust per unit airflow. This gives a better comparison of the efficiency of different engines.
To summarize: There is no single "engine power" for a jet engine. It's more accurate to talk about the thrust it produces, which varies depending on the engine type, altitude, and speed.
