This study analyzes the correlation between variations in air temperature, dew point, and air pressure on aircraft lift force while considering wind components at Kualanamu International Airport using a quantitative descriptive-correlational approach based on observational METAR and SPECI data throughout 2024. The analyzed parameters included air temperature (°C), dew point (°C), air pressure (hPa), wind direction (°), and wind speed (knot), with lift force calculated based on Boeing 737-800 specifications. The results show that air temperature has a consistent positive correlation with lift force throughout the year (r = 0.35-0.6) with the highest value in April (r = 0.603) and the strongest correlation in the temperature range of 28-33°C, dew point shows variable correlation patterns between months (r = -0.301 to 0.603), while air pressure shows consistent negative correlation (r = -0.1 to -0.47) with the strongest correlation in July (r = -0.472) in the pressure range of 1003-1010 mb. The research concludes that air temperature is the most influential meteorological parameter on aircraft lift force with stable positive correlation, while wind components (headwind/tailwind) have relatively small effects on lift force for large commercial aircraft.
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