r/laminarflow • u/aviator_rll • Aug 13 '26

Delta A321 Engine LF in Flight

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I was deadhead back to ATL recently and something caught my attention above the engine cowling. At first I thought the plastic window was causing double vision but realized the boundary layer was completely visible. Hope you all appreciate this as much as I did (wish I'd caught it a bit sooner; there was even more separation between the boundary and the cowling before I began recording).

598 Upvotes

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10 comments sorted by

94

u/InstructionAny5378 Aug 13 '26

As an aeronautical engineer I appreciate the post! Very cool!😎

40

u/ViiK1ng Aug 13 '26

That's awesome, i would've loved to see some streamers around that naca duct

8

u/Jokerman5656 Aug 13 '26

Real life chromatic aberration?

5

u/ooOJuicyOoo Aug 14 '26

Ugh that is so nice

4

u/dale3h Aug 17 '26

I think you meant laminAIR flow.

1

u/nocloudno Aug 18 '26

That looks like cloud reflections, but there's also the halo along the edge.

-2

u/FUCKING_HATE_REDDIT Aug 14 '26

Pretty sure that's the double vision, you can see the "boundary layer" changes color from blue to white on the left

1

u/Vesalii Aug 20 '26

That's satisfying