Takeoff and approach account for what percentages respectively?

Takeoff and approach account for what percentages respectively?

• A. 8.5% and 8.3%
• B. 8.3% and 8.5%
• C. 8.0% and 7.5%
• D. 7.5% and 8.0%

Answer: (A)

Takeoff and approach represent two flight phases where engines work hardest relative to the total mission fuel, even though those phases are shorter than cruise. Takeoff requires maximum thrust and rapid acceleration to liftoff and initial climb, which drives a larger share of fuel burn. Approach also demands careful energy management to slow, configure for landing, and align with the runway, but typically uses slightly less thrust overall than takeoff, so its fuel share is a bit lower. The numbers 8.5% for takeoff and 8.3% for approach reflect a common breakdown for typical jet operations, with takeoff consuming a touch more fuel than the final approach. Actual values vary with aircraft type, weight, route, and engine settings, but this ordering matches how the energy use is distributed across flight phases.

Takeoff and approach represent two flight phases where engines work hardest relative to the total mission fuel, even though those phases are shorter than cruise. Takeoff requires maximum thrust and rapid acceleration to liftoff and initial climb, which drives a larger share of fuel burn. Approach also demands careful energy management to slow, configure for landing, and align with the runway, but typically uses slightly less thrust overall than takeoff, so its fuel share is a bit lower. The numbers 8.5% for takeoff and 8.3% for approach reflect a common breakdown for typical jet operations, with takeoff consuming a touch more fuel than the final approach. Actual values vary with aircraft type, weight, route, and engine settings, but this ordering matches how the energy use is distributed across flight phases.