Aviation & Piloting What is the 3 to 1 rule for pilots? February 6, 2026 by Myaya | Leave a Comment The 3 to 1 rule for pilots is a simple yet effective method used in aviation to calculate descent profiles. It helps pilots determine when to start descending from cruising altitude to ensure a smooth and efficient approach to the destination airport. This rule of thumb involves multiplying the altitude (in thousands of feet) by […] Read more ยป