@aeroshortsofficial: Why do some airliners fly faster than others on the exact same route? 🤔✈️ The answer is the Cost Index. Airlines constantly balance fuel costs ⛽ and time related costs ⏱️ to calculate the most economical speed for the flight. A low Cost Index saves fuel. A high Cost Index saves time. And that’s exactly how the aircraft calculates its ECON speeds during climb, cruise, and descent. 📈 One small number in the FMC can completely change how the aircraft flies. #aviation #fyp #foryou #avgeek #pilot

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Saturday 16 May 2026 11:06:25 GMT

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Obergudekurt :

biggest humor to show an A350 in an video explaining the cost index

2026-06-26 10:58:58

拉西·菲萨利亚[𝗗𝗮𝗻𝘇𝗿𝗮𝗶𝗱𝗲𝗻] :

Now, I know how to use cost index thanks to aeroshorts👍

2026-05-16 21:25:05

Max Verstappen :

why dont they just fly high altitude and high speed to save both fuel and time?

2026-05-17 14:55:41

Sky :

Our airline use CI 80

2026-05-28 05:31:58

louddrum :

Would wingspan matter? High aspect ratio wing fly higher for emergency. Descent rate be less compare low aspect ratio?

2026-05-17 01:27:56

Filip :

Well why doesn’t all aircraft have winglets?

2026-05-17 01:46:48

Morozz :

This is BS. Crew doesn’t any of that

2026-05-17 09:35:17

sohailmoolla :

🥰🥰🥰

2026-05-16 13:01:16

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