Definition
The pilot's management of how the airplane's total mechanical energy is divided between kinetic energy (airspeed) and potential energy (altitude) at any given moment. By using pitch, the pilot trades one form for the other; by using power, the pilot adds energy to or removes energy from the total. Energy distribution is one of the three basic rules of energy control, alongside total energy and energy exchange.
Plain English
How the airplane's energy is split between speed and height. Pitching the nose up or down shifts energy between the two; adding or reducing power changes the total amount available.
Context Anchor
Seen in the Airplane Flying Handbook discussion of energy control, especially when learning how pitch and power work together in climbs, descents, approaches, and level-offs.
Derivation
Energy comes from a Greek word meaning activity or work. Distribution comes from Latin roots meaning to divide out or share. Together, the phrase points to how the airplane’s available energy is divided between moving fast and being high.
Why Pilots Care
Correct energy distribution prevents unintended loss of airspeed or altitude that can lead to stalls or loss of control during maneuvers.
Analogy
Think of the airplane’s energy like money split between two accounts: speed and height. Moving energy into one account usually takes it out of the other unless the engine adds more.
Grounding Statement
At any instant, the airplane has a certain amount of energy on board, and the pilot is constantly deciding how much of it should be speed and how much should be altitude.
Intuition Check
Energy distribution does not mean electrical power distribution or fuel flow. Here it means how the airplane’s flight energy is divided between airspeed and altitude.
Example Sentence 1
On a high, fast approach, the pilot reduced power and lowered the nose slightly, adjusting energy distribution to lose altitude without gaining unwanted airspeed.
Example Sentence 2
In a go-around the pilot increases power to raise total energy and then redistributes it to gain both altitude and airspeed safely.