Lähestymisvauhti

Lähestymisvauhti refers to the speed of an aircraft relative to the air as it approaches a landing. This speed is crucial for maintaining sufficient lift and control during the final stages of flight. Pilots carefully manage lähestymisvauhti to ensure a safe and stable descent. Factors influencing the optimal lähestymisvauhti include the aircraft's weight, flap configuration, wind conditions, and runway length. Heavier aircraft typically require a higher lähestymisvauhti, while the use of flaps can reduce the necessary speed by increasing lift. Headwinds also allow for a lower ground speed while maintaining a safe airspeed. Deviating significantly from the recommended lähestymisvauhti can lead to a stall if too slow or an unstable approach and difficulty in decelerating if too fast. Modern aircraft often incorporate flight management systems that assist pilots in calculating and maintaining the correct lähestymisvauhti. The concept is fundamental to aviation safety and is extensively trained during pilot instruction.