At a temperature of 90 degrees F, what is the appropriate takeoff distance to clear a 50-foot obstacle?

To determine the appropriate takeoff distance needed to clear a 50-foot obstacle at a temperature of 90 degrees Fahrenheit, various factors are taken into account, including aircraft performance charts, aircraft weight, altitude, and atmospheric conditions. In many cases, higher temperatures can increase the density altitude, which in turn affects engine performance and aerodynamic lift.

At a higher temperature such as 90 degrees F, the aircraft may require a longer takeoff distance to achieve the necessary speed and performance to clear an obstacle. Typically, performance charts will indicate the required distances under various conditions, including temperature adjustments.

In this scenario, the choice indicating 2,000 feet aligns with the additional distance that may be required when factoring in the elevated temperature, ensuring the aircraft has sufficient performance margin to safely clear the obstacle. It accounts for the need for longer takeoff rolls and increased distances to achieve climb altitude, particularly in less than ideal atmospheric conditions. Thus, the indicated takeoff distance of 2,000 feet is rational and reflects standard operational guidelines for safety.