This chapter is all about managing the airplane’s altitude and airspeed using an energy-centered approach. Energy management can be defined as the process of planning, monitoring, and controlling altitude and airspeed targets in relation to the airplane’s energy state in order to:

1. Attain and maintain desired vertical flightpath-airspeed profiles. 2. Detect, correct, and prevent unintentional altitude-airspeed deviations from the desired energy state. 3. Prevent irreversible deceleration and/or sink rate that results in a crash.