Identifikasi Angin Silang (Cross Wind) di Sekitar New Yogyakarta International Airport Memakai Plot Wind Rose

Abstract

<p class="AbstractEnglish"><strong>Abstract:</strong> Wind has important role in aviation safety. The aim of the research is to analyze monthly wind profile and crosswind potential in the area of New Yogyakarta International Airport. The method used by installing 4 (four) AWS (Automatic Weather Station) at the end and the middle of the runway during March to September 2017. The results show that the wind patterns in the March-May period have varying directions with an average speed of 5-8 knots. In June - September, the wind pattern blows from the East - Southeast direction with an average speed of 6-9 knots. The maximum wind speed occurred between 14-20 knots and no crosswind potential was found for the runway length of 3,600 meters.</p><p class="AbstrakIndonesia"><strong>Abstrak:</strong> Angin merupakan unsur cuaca yang sangat penting dalam keselamatan penerbangan. Penelitian ini bertujuan melakukan analisa profil angin bulanan dan potensi terjadinya Crosswind pada area New Yogyakarta International Airport. Metode yang dipakai dengan memasang 4 (empat)buah AWS (Automatic Weather Station) di ujung dan tengah landasan selama bulan Maret hingga September 2017. Hasil pengamatan dan analisa menunjukan bahwa pola angin pada periode Maret – Mei memiliki arah yang bervariasi dengan kecepatan rata-rata 5 – 8 knot. Pada Juni – September, pola angin berhembus dari arah Timur – Tenggara dengan kecepatan rata-rata 6 – 9 knot. Selama periode pengamatan, kecepatan angin maksimum yang terjadi antara 14 – 20 knot dan tidak ditemukan potensi terjadinya cross wind untuk panjang landasan 3.600 meter.</p>

Analysis of Surface Wind Speed at Minangkabau International Airport for the period 2011-2020 using the Windrose Method

“…Especially in aviation, in addition to the level or intensity of weather elements, the type of aircraft, the aircraft's condition, and the flight's position are also factor that determine its sensitivity to weather. The effect of crosswind on the runway at a speed of 20 knots may pose a danger to small aircraft making landings, but it does not affect large and modern aircraft [13]. However, because every airplane has the same three activities, namely taking off, flying, and landing, the use of the meaning of danger in flight, is generally applied to each of these activities [8].…”

“…Pilots avoid this wind pattern for flight because it can have a negative impact during the flight, which can cause the plane to deviate from the runway or even slip [1]. The allowable crosswind speed limit is 10 knots for airports with a runway length of 1200-1500 m and a speed of 20 knots for airports with a runway length of more than or equal to 1500 m [13]. If the plane gets a crosswind, a pilot must have a strategy to balance the crosswind so that the aircraft does not sway and the plane can survive the dangers of the crosswind effect on the runway.…”