eli5: Why do bigger aircraft appear to be flying more slowly than smaller ones both from the ground and from the inside?

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Every time I see a large plane in the sky, or even riding in one, it seems like it just flies more slowly. I wonder if it’s an illusion or do they actually fly more slowly?

In: Physics

7 Answers

Anonymous 0 Comments

They’re usually flying higher and there are no features way up there to compare scales with. If you ever actually see another plane while you’re up there you might be able to gauge how absurdly fast you’re going.

For a passenger, they’re bigger and more stable so the ride feels smoother and slower despite being considerably faster. It’s like riding in a modern car at 70mph vs riding in a shopping cart at 40mph. One is so smooth it’ll lull you to sleep, the other is a death-defying stunt.

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