Understanding Aircraft Drag

Understand how drag affects aircraft performance, speed, efficiency, and safety during every phase of flight.

Drag is the aerodynamic force that acts opposite the direction of flight. It slows the aircraft down and requires engine power to overcome. In this lesson, you will learn how drag is created, why it changes with airspeed and aircraft configuration, and how pilots manage drag during takeoff, climb, cruise, descent, approach, and landing.

This lesson introduces the major types of drag, including parasite drag and induced drag, and explains how factors such as airspeed, angle of attack, landing gear, flaps, and aircraft surface condition affect total drag. You will also review why managing drag properly is essential for aircraft performance, fuel efficiency, climb capability, and safe landings.

Want the complete training path?
This lesson is included in the complete Ace Pilot Academy Multi-Engine Training Series, which includes all 14 lessons, quizzes, PDF study guides, final review, checkride readiness checklist, and final quiz.

Best value: Start the full Multi-Engine Training Series instead of purchasing lessons one at a time.

What You’ll Learn

• What drag is and how it opposes aircraft motion
• How drag affects speed and performance
• The difference between parasite drag and induced drag
• Why parasite drag increases with airspeed
• Why induced drag is greater at higher angles of attack
• How landing gear and flaps increase drag
• How drag affects takeoff, climb, cruise, descent, approach, and landing
• Why pilots must manage drag for safe and efficient flight

Why This Matters

Drag directly affects aircraft performance and energy management. Too much drag can reduce climb performance, increase fuel burn, limit acceleration, and affect landing distance. Understanding drag helps pilots make better decisions about airspeed, configuration, power settings, and aircraft control.

Important Note

This lesson is for training and study purposes. Always follow the aircraft-specific AFM/POH, approved performance data, approved checklists, instructor guidance, and applicable FAA procedures.