2.3 The Operating Environment and Aircraft Performance
Humidity and high temperatures are some of the many environmental factors that directly affect an aircraft's performance. As we learned in chapter 11 density altitude, when increased, affects the aircraft performance negatively by decreasing its performance. Contrarily, when the density altitude is decreased the performance of an aircraft is increased. "Water vapor is lighter than air so, moist air is lighter than dry air" (FAA, 2016). Due to this, as water content in the air increases (higher humidity) the air becomes less dense which increases the density altitude. Therefore, decreasing the aircrafts performance. Takeoff and landing distance, rate of climb, speed, maneuverability, and stability are all affected by when a higher humidity and temperature is in play.
References
Federal Aviation Administration (FAA).
(2016). Pilot’s Handbook of Aeronautical Knowledge (PHAK). Retrieved https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/phak/
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