Takeoff distance refers to the length of runway required for an aircraft to become airborne. This distance varies based on several factors, including the aircraft's weight, engine power, and environmental conditions such as temperature and altitude. Pilots must calculate the takeoff distance to ensure they have enough runway to safely lift off. In aviation, takeoff distance is crucial for flight planning and safety. It helps determine the minimum runway length needed for a specific aircraft type, such as a Boeing 737 or Cessna 172. Understanding takeoff distance allows pilots to choose appropriate airports and avoid potential hazards during departure.