The GOT is influenced by several factors, including:
1. Aircraft Weight:
The heavier the aircraft, the more thrust is required to achieve lift-off. Heavier aircraft will generally have a higher GOT.
2. Runway Conditions:
The condition of the runway can affect GOT. A wet or icy runway will reduce the friction between the tires and the surface, making it more challenging for the aircraft to accelerate. This can lead to a higher GOT.
3. Atmospheric Conditions:
Factors like air density, temperature, and wind speed can impact the aircraft's lift and drag. Higher temperatures and higher altitudes can result in reduced air density, which can impact the aircraft's ability to generate lift and lead to a higher GOT.
4. Engine Thrust:
The thrust produced by the aircraft's engines is critical in achieving lift-off. Insufficient thrust can result in a higher GOT or even an aborted takeoff.
5. Flap Settings:
Flaps are movable surfaces on the aircraft wings that increase lift at low speeds. Proper flap settings can improve the lift-to-drag ratio of the aircraft, allowing it to reach a higher speed and lift off at a lower GOT.
To calculate the GOT, aircraft manufacturers and pilots use various performance charts and manuals that account for the specific characteristics of the aircraft, its weight, and the environmental conditions. GOT calculations ensure that the aircraft can clear obstacles during takeoff, maintain a safe climb profile, and have sufficient performance margins for contingencies.
By understanding and meeting the GOT requirements, pilots and airlines can ensure safe and efficient aircraft operations during takeoffs.
