In what temperature conditions is the landing distance of 1,775 feet applicable?

The landing distance of 1,775 feet is applicable at 90°F because this temperature serves as a benchmark for performance calculations in flight operations. Aircraft performance data is often derived from standardized temperature conditions, and 90°F is a typical reference point used in performance charts provided by aircraft manufacturers.

At this temperature, the aircraft's performance metrics, including landing distance, are established based on engine output, lift, drag, and other aerodynamic factors that can be impacted by temperature. Specifically, higher temperatures can lead to decreased air density, which may lengthen the required landing distance due to less lift being generated and potential changes in engine performance.

In comparison, temperatures below or above this reference point may result in different performance characteristics. For example, at temperatures lower than 90°F, the aircraft may perform better, resulting in a shorter landing distance. Conversely, at temperatures above 90°F, the landing distance may increase as a result of reduced performance in various aspects due to higher density altitude effects.

Thus, knowing that 90°F provides a standardized and commonly referenced condition allows pilots to make informed calculations regarding landing distances and performance for their specific aircraft.