A320 DEST APPR Page
On the DEST APPR page, you have to enter the QNH, Temperature and Wind for weather. Regardless of QNH and temperature, VLS and Vapp stay the same. They are based on actual or predicated gross weight for a specific configuration. VLS and Vapp change after based on actual winds. Why do we than enter QNH and Temperature? I am sure it is trying to calculate density altitude but for what?