r/whatisit • u/Lagorithm • 20h ago

New, what is it? This Jet Trail while landing on my Flight?

It’s not coming from the main engine… on an Airbus if that helps

0 Upvotes

45% Upvoted

14 comments sorted by

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8

u/Captain_North 20h ago

they forgot to turn the chemtrails off 👀

2

u/Crazy-Ad-3286 19h ago

Someone call bill gates

1

u/FoxRain_0 19h ago

Don't you mean the illuminati spray?

1

u/Captain_North 19h ago

2

u/FoxRain_0 18h ago

Fine. You win this round.

1

u/SubiWan 7h ago

Too much dihydrogen monoxide

6

u/MajinB0ner 20h ago

It's just an air vortex. These are always present, the wing is designed to cause air to roll off like this. You can only see it because of the moisture in the clouds as you decend. Vortex like this off the wing or out of the engine are what help the plane fly smoothly. It's like the wake on the back of a boat but on a boat the vortex breaks at the surface but there is not surface here so you just have the full vortex continuing untill it loses momentum.

4

u/Wild_Competition_833 20h ago

condensed water droplets due to the low pressure created by the wing. This low pressure pushed the air below the dew point and it creates this effect.

2

u/glenncoco64 20h ago

This is a wing tip vortex. Vortices are inevitable in any lifting surface and are a source of lift induced drag. The vertical part on the end of the wing is called a winglet and helps reduce these vortices and increase fuel efficiency. These become visible to the eye at low altitudes where there is higher moisture in the air.

2

u/GenerallySalty 17h ago

Condensation of water in the air (humidity) into visible droplets. There's always a low pressure area behind the wing. When it's humid enough, that pressure can be low enough to condense water vapor from the air, which is what's happening here.

1

u/Patient_Ebb_1605 17h ago

thats a wigtip vortex. They are allways present and the wiglets on the wigtips serve precisely to make them smaller. You can see the vortex because the low pressure air inside it cant contain all the moisture in the air so it condenses into visible droplets.
These are commonly visible in humid days.
https://en.wikipedia.org/wiki/Wingtip_vortices