What are the main differences between Gross Thrust and Net Thrust?
Gross thrust is the reaction of the momentum of the jet stream produced in a gas turbine engine. If you don’t know net thrust, let me tell you.Net thrust is the resultant force acting on the aircraft.Net thrust=Gross Thrust-Momentum(Intake)Drag. Don’t go deep in momentum drag. When the aircraft with a turbine engine, is moving, Gross Thrust is more than net thrust. And when the engine is at rest, gross thrust=net thrust.
Environmental and non-environmental factors that will affect gas turbine engine thrust:
If turbojet engines were operating just under static conditions in an air condition room at standard day temperature, there would be no compelling reason to change the amounts utilized as a part of the previous conditions for the net and gross thrust at any given throttle setting. Be that as it may, all engine introduced in aircraft must work under changing states of airspeed and altitude. These varying conditions will radically affect the temperature and pressure of the air entering the engine, the amount of airflow through the engine, and the jet velocity at the engine exhaust nozzle. This implies, for any given throttle setting, different values must be entered in the thrust equations as the airspeed and altitude of the aircraft changes. Although some of these variables are compensated by the engine fuel control, many of the changes that will occur affect the thrust output of the engine directly. All things considered, a comprehension of the effect on the thrust equations of the several variables that will be encountered during normal engine operation will serve to illustrate how the changing conditions at the engine air inlet affect engine performance in flight and on the ground. Gas turbine engine operates under the varying condition that affects the amount of thrust the engine produces. These conditions affect either the momentum of air-fuel flows through the jet nozzle.