What is meant by 'propulsive power' in aviation?

Propulsive power in aviation refers specifically to the power generated by an aircraft's engines that is used to produce thrust. This thrust is essential for overcoming drag and achieving forward motion, which allows the aircraft to accelerate and maintain flight. The engines convert fuel into mechanical energy, providing the necessary force to propel the aircraft through the air.

Understanding propulsive power is crucial for pilots and engineers because it directly affects an aircraft's performance, including its ability to take off, climb, cruise, and land. The other concepts mentioned—lifting power, power to maintain altitude, and total energy consumed—are related to different aspects of flight dynamics but do not specifically define propulsive power. They focus on what is needed for altitude control or overall energy usage rather than the thrust generation aspect that is characterized by propulsive power.