@abbie.cheeseman: Just to clarify that many airports/airlines do prefer to use ground power units while on the ground regardless of APU status & depending on the airport/airline, they may or may not have air conditioning available at each gate. The APU isn't just some random vent hole at the back of your plane, it's a whole additional engine running before your pilots ever touch the real ones. When it breaks, ground crews have to hook up an air start cart to get one engine going, then feed that engine's bleed air over to start the second one. That's why a broken APU can mean a hot cabin and a longer wait at the gate. #aviation #APU #AviationTikTok #PlaneFacts #avgeek
the picture of that airstart that you show has an airplane engine too.
2026-08-30 11:57:49
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Jedi Master Jarin Thal :
fun fact: on US airways 1539 that went into the Hudson it was Sullenberger's quick thinking to turn the APU on that gave him flight controls as he glided down into the Hudson. That was not something that was on the checklist but he knew with both engines out he needed some sort of power for flight controls and instruments. This is reference quite clearly in the movie.
2026-08-28 23:43:30
35
Cattie :
Planus
2026-08-28 23:12:09
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Remoper2008 :
I once saw a plane with 3 condensation trails but it was a 2 engine plane so I think the apu was let on mid air
2026-08-29 09:36:06
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Christian 199526 :
Ugh the air start was annoying to use to start the plane
2026-08-29 01:02:17
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꙰ :
we use apu and ground power unit
2026-08-29 01:12:05
4
proofofjoey :
That’s so cool!
2026-08-28 20:54:12
2
OneDadRagingAgainstTheMachine :
We used ground units at UPS and they were incredibly loud. I haven’t worked there in 25 years, so I don’t know if they still do
2026-08-28 23:52:44
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s7k :
kewl
2026-08-28 20:54:32
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perrytheriotgmailcom perry :
Cactus 1549. Nuff said......😏
2026-08-29 04:27:21
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T.V.Boy1 :
educational. Interesting. I did not know that. Always wondered what that hole was. I thought it was regular engine exhaust.
2026-08-29 13:52:27
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Massimo Ip :
I never knew at bc project flight sim on Roblox made me so confused and I don’t not msfs
2026-08-28 22:18:32
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Jesus Chavez :
ahhh, yeah, that little hole at the end
2026-08-28 20:56:47
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Quartus Trichardt :
I know some people who's APUs start going before the flight too. 🤪🤪🤪
2026-08-28 20:56:45
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user728390397273838 :
They mounted five of them in the a340
2026-08-30 02:41:35
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Myles :þ :
Nah it’s its planes bum hole and it’s farting
2026-08-29 00:46:46
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bigFlaws :
the blow hole
2026-08-28 21:43:51
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