Takeoff at reduced thrust is prohibited under which conditions?

Takeoff at reduced thrust is prohibited under which conditions?

• A. On Slippery Or Contaminated Runways
• B. When Windshear Is Present
• C. When A Special Departure Procedure Specifies Full Thrust
• D. All Of The Above

Answer: (D)

When you’re deciding whether a takeoff can be done with reduced thrust, the safety margin shown by your performance data must be respected for the given conditions. Slippery or contaminated runways change how quickly the airplane can accelerate and lift off, so using less thrust can leave you short of the required takeoff speed or climb performance. Windshear adds an unpredictable, potentially dangerous change in airspeed after takeoff; in that situation you need maximum available thrust to ensure you can attain a safe escape path. If a Special Departure Procedure specifies full thrust, you must follow that—the procedure is designed around the performance you’ll have with full power. Because reduced thrust is prohibited in these scenarios, the correct answer is all of the above.

When you’re deciding whether a takeoff can be done with reduced thrust, the safety margin shown by your performance data must be respected for the given conditions. Slippery or contaminated runways change how quickly the airplane can accelerate and lift off, so using less thrust can leave you short of the required takeoff speed or climb performance. Windshear adds an unpredictable, potentially dangerous change in airspeed after takeoff; in that situation you need maximum available thrust to ensure you can attain a safe escape path. If a Special Departure Procedure specifies full thrust, you must follow that—the procedure is designed around the performance you’ll have with full power.

Because reduced thrust is prohibited in these scenarios, the correct answer is all of the above.