What affects takeoff performance?

Aircraft weight Foremost, a heavier aircraft has more inertia. This requires more acceleration. To accelerate, more runway is required, and this increases the takeoff distance. A heavier aircraft also puts in more load on the ground, and this increases the wheel drag which in turn increases friction.



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Pressure, temperature, and humidity have a great influence on aircraft performance because of their effect upon density. There is no rule-of-thumb or chart used to compute the effects of humidity on density altitude, but it must be taken into consideration.

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Maximum permissible takeoff weight or regulated takeoff weight, varies according to flap setting, altitude, air temperature, length of runway and other factors. It is different from one takeoff to the next, but can never be higher than the MTOW.

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The most critical conditions of takeoff performance are combinations of: High gross weight. High-density altitude. Contaminated runways.

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Pressure, temperature, and humidity have a great influence on aircraft performance because of their effect upon density. There is no rule-of-thumb or chart used to compute the effects of humidity on density altitude, but it must be taken into consideration.

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A headwind reduces the takeoff ground roll, allowing for shorter runway lengths, and reduces wear on the tires. Similarly, for landing, a headwind lowers the groundspeed at touchdown, shortening the distance required to stop, and reduces tire wear.

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Reasons to perform a rejected takeoff vary, but are usually related to a suspected or actual problem with the aircraft, such as an engine failure; fire; incorrect configuration; aircraft control issue; unusually slow acceleration; automated warning signal(s) indicating a critical system failure; environmental ...

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The takeoff distance and speed at which the aircraft can safely fly can be significantly reduced by using flaps and other high lift devices such as slats, an optimum flap/slat setting being configured to minimize the takeoff distance and maximize the initial rate of climb.

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  • Failure to adequately clear the area prior to taxiing into position on the active runway.
  • Abrupt use of the throttle.
  • Failure to check engine instruments for signs of malfunction after applying takeoff power.
  • Failure to anticipate the airplane's left turning tendency on initial acceleration.


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Actual landing distance is affected by various operational factors, including: High airport elevation or high density altitude, resulting in increased groundspeed; Runway gradient (i.e., slope); Runway condition (dry, wet or contaminated by standing water, slush, snow or ice);

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If you haven't reached 70% of your takeoff speed by the time you've reached 50% of the length of the runway, you should abort your takeoff. You should always use your takeoff performance charts to make sure you have enough runway for a safe takeoff.

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