Why Airlines Don't Fly Higher Than 40,000 Feet?
Why Don’t Airplanes Fly Higher Than 40,000 Feet? The Real Answer Most commercial flights cruise around 35,000–40,000 feet. But why not higher? Is it safety, fuel efficiency, or something else? In this video, we explain the science and limits of how high planes can actually fly. ⏱ Timestamps: 0:27 — What You’ll Learn in This Video 0:58 — What Happens to the Atmosphere as Planes Fly Higher 1:47 — Why 40,000 Feet Is the Optimal Height for Most Flights 3:20 — What Happens Above 40,000–45,000 Feet 3:52 — Certified Altitude Ceilings for Different Aircraft 4:40 — The Altitude Record for Passenger Planes From thinning air and engine performance to structural limits and safety — discover why 40,000 feet is the practical ceiling for commercial aviation. 👍 Like if this video explained something you’ve always wondered about! 🔔 Subscribe to WhyLab for more surprising facts about aviation and technology. What’s the highest you’ve ever flown? Tell us in the comments 👇 #WhyPlanesDontFlyHigher #40000Feet #AirplaneAltitude #FlightCeiling #AviationScience #WhyPlanesFlyAt35000Feet #JetStream #AircraftLimits #DidYouKnow #WhyLab
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