It was so large that when its leading edge made contact with ground, its trailing edge was at least as high as the cruising altitude of a commercial airliner. 這顆災禍之星十分巨大，當它一頭撞上地面時，尾端至少還在一般客機的巡航高度。
This includes weather forecasts for destination aerodromes, prognostic charts of significant weather en route and forecast wind and temperature data appropriate to cruising levels. 氣象所也為離港航機提供飛行氣象文件，包括目的地機場的天氣預報，沿途危險性天氣預報圖，以及適用於巡航高度的風及溫度預報數據。
