Definition
The pilot's active control of engine and system temperatures during all phases of flight to keep them within manufacturer-specified operating limits. In a piston-engine airplane, this is achieved primarily through adjustments to power setting, mixture, cowl flaps (if installed), airspeed, and rate of climb or descent, so that cylinder head temperature, oil temperature, and exhaust gas temperature remain in their normal ranges.
Plain English
Heat management is how a pilot keeps the engine from getting too hot or, in some cases, too cold. It is done by adjusting throttle, mixture, airspeed, and cooling controls so the engine stays in the temperature range the manufacturer says is safe.
Context Anchor
Encountered during climbs, descents, high-power operation, and any situation where the pilot must watch engine temperature indications and keep them in a safe range.
Why Pilots Care
Good heat management prevents engine damage, extends engine life, and keeps the flight safe.
Intuition Check
Heat management does not mean cabin heating or passenger comfort here. In this context, it means controlling operating temperatures so the airplane and engine stay within safe limits.
Example Sentence 1
On a hot summer climb, the pilot lowered the nose slightly to increase airspeed and improve heat management before the cylinder head temperature reached the red line.
Example Sentence 2
On descent the pilot adjusted settings to maintain proper heat management and avoid rapid cooling.