Aircraft Engine Controls - Cowl


If the aircraft is equipped with adjustable Cowl Flaps:

  • Cowl Flap Position Control - Cowl Flaps are opened during high power/low airspeed operations like takeoff to maximize the volume of cooling airflow over the engine's cooling fins.
  • Cylinder Head Temperature Gauge - Indicates the temperature of all cylinder heads or on a single CHT system, the hottest head. A Cylinder Head Temperature Gauge has a much shorter response time than the oil temperature gauge, so it can alert the pilot to a developing cooling issue more quickly. Engine overheating may be caused by:
    1. Running too long at a high power setting.
    2. Poor leaning technique.
    3. Restricting the volume of cooling airflow too much.
    4. Insufficient delivery of lubricating oil to the engine's moving parts.

Read more about this topic:  Aircraft Engine Controls

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