The Cabin Altitude concept starting from 4:00 along with the animation is very helpful. A brilliant way to explain this! Thank you very much for your hard work on this video!
@@JxJAVIATION same with my book, but i think the reason is instructor has to simplified it. and for beginer simple things can be consume faster. But as long as you love it and want to dig it down. So here is the valuable material that we are looking for...
It was not explained quite correctly. The oxygen content in air is the same at all altitudes (air is around 21% oxygen even at 30,000+ feet). But the "partial" air pressure (as it's called) at these high altitudes means we cannot breathe the oxygen sufficiently. So its air pressure rather than amount of oxygen that is the issue.
@@TheTommowg You are correct in that the content of oxygen in the air is the same irrespective of height, but I'd like to mention volume of air here as well. Just to clarify, available oxygen decreases with altitude, which is correct, since air oxygen becomes less densely packed the higher you go (since air pressure decreases). This however decreases oxygen per unit volume, or in other words, oxygen spreads out more (still the same volume), and thus the availability of oxygen decreases. Air pressure is thus related to oxygen availability, not content unless you account for per unit volume, and I believe that is what he meant to relay, but failed.
The structural components of the fuselage: Bulkhead, Stringers and the Aircraft Skin: should have enough strength to withstand the pressure difference.
It is not true that the human body cannot survive at low pressure. It is the oxygen content of the breathable gas that limits survivability. All of the Apollo missions were flow in a pure oxygen environment at 4 psi.....equivalent to just over 30,000ft
This is a great video explaining but there is one issue. The amount of oxygen doesn’t decrease as you ascend. The issue is the lack of pressure at higher altitudes. The lack of pressure at higher altitudes means your body isn’t able to “consume” as much of the atmosphere which includes oxygen.
@@JxJAVIATION another thing is that the amount of oxygen in the atmosphere is the same as you go higher, but the molecules are further apart. Awesome video though !
at first...I didnt think this video was going to be good. but it was great!
Wow, thanks. That's great!
The simplest diagrams offer the greatest explanation!
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Best explanation.
I am a license aircraft engineer of Boeing 757-200pcf
Thank You!
The Cabin Altitude concept starting from 4:00 along with the animation is very helpful. A brilliant way to explain this! Thank you very much for your hard work on this video!
Glad it was helpful!
Awesome content! You did a great job by illustrating it. Thank you very much.
You're very welcome! Check out my other videos as well!
Perfection, best explanation
Thank You!
No problem!
Thanks a lot! This really helps in understanding the pressurization system!
You are welcome! Check out my other videos too
Great simple info you gave in this video! Thank you.
You're very welcome!
I'm currently doing my AME license course..
Watching ur videos 😊 makes me understand fantastically well after class..
I watch ur videos after class
Thats Great! Thank you! Do Check out my other videos as well!
going to the dark side
cant beat ‘em join em
Great explanation , thank you!
Welcome! Do check out my other videos as well!
awesome simple but smart video
Glad you liked it! :)
Thank you so much. Good explanation :)
thank you!!
Good explanation 👌.
Very Clear expalnation, Thank you every much.
You are welcome!
seriously great basic video. Books confused me so much. My instructor didn't do well at explaining it either. Thanks!
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Thank you so much
Thank you so much, simple explanation love it👌
You are welcome! Check out my other videos as well please!
Great video - thank you
Glad you enjoyed it
Outstanding
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Thank you very much
You are welcome
Thank you
Thank you! Check out my other videos as well!
Thank you sir
Welcome
Far much more better than cbt
Nice class
Thanks:)
AMAZING EXPLANATION!!
Glad it was helpful!
I love all u our video. Great job done 👍🏾
Thank you so much 🤗
This was a root cause for Helios airline crashed landing back in 2005
Thanks for the input!
Do you have any video on landing gears!?
YES! Have made Landing Gear System in 3 parts! Do check it out!!
Hi, can i use the thumbnail of this video as reference for one of my videos, and if so should i mention you? Thank you so much!
You can use it, but provide my reference and do tag my channel as well!
Aviation's books these days dont include how and why. Only bloody fancy words and small infos. Thx
Hope this video was useful!
@@JxJAVIATION same with my book, but i think the reason is instructor has to simplified it. and for beginer simple things can be consume faster. But as long as you love it and want to dig it down. So here is the valuable material that we are looking for...
How are you sir can you tell me please on the 8000feet oxygen level of aeroplane is maintan same like ground level
That's because of the pressurization system
It was not explained quite correctly. The oxygen content in air is the same at all altitudes (air is around 21% oxygen even at 30,000+ feet). But the "partial" air pressure (as it's called) at these high altitudes means we cannot breathe the oxygen sufficiently. So its air pressure rather than amount of oxygen that is the issue.
@@TheTommowg You are correct in that the content of oxygen in the air is the same irrespective of height, but I'd like to mention volume of air here as well. Just to clarify, available oxygen decreases with altitude, which is correct, since air oxygen becomes less densely packed the higher you go (since air pressure decreases). This however decreases oxygen per unit volume, or in other words, oxygen spreads out more (still the same volume), and thus the availability of oxygen decreases. Air pressure is thus related to oxygen availability, not content unless you account for per unit volume, and I believe that is what he meant to relay, but failed.
So why doesn't the cabin pressure break apart the plane due to lower ambient air pressure?
The structural components of the fuselage: Bulkhead, Stringers and the Aircraft Skin: should have enough strength to withstand the pressure difference.
The composite Material of the aircraft structure design to sustained inn-cabin pressure.
05:06
Why cabin altitude maintain 8000ft while oxygen pressure (15.4psi) at this altitude less then the human body required(19.5psi)?
The oxygen available at 8000ft is sufficient, safe and comfortable as well for the human body.
They are lying to u 🤥
It is not true that the human body cannot survive at low pressure. It is the oxygen content of the breathable gas that limits survivability. All of the Apollo missions were flow in a pure oxygen environment at 4 psi.....equivalent to just over 30,000ft
Yes should have mentioned the oxygen availability in that statement!
This is a great video explaining but there is one issue. The amount of oxygen doesn’t decrease as you ascend. The issue is the lack of pressure at higher altitudes. The lack of pressure at higher altitudes means your body isn’t able to “consume” as much of the atmosphere which includes oxygen.
Thank you for the information. With reference to the human body I meant that the oxygen available is not sufficient.
You are right! This is crime against the passengers!
Why do we reset pressurization if all doors closed?
The pressurization cycle starts when the doors are closed!
@@JxJAVIATION what if i didnt reset it then i take off, can i reset it during climb? Or level off?
@@Vanilla_o28 it should be set to auto at operating conditions. Hence the pressurization cycle starts when the doors are shut.
Because all they say to u is a 🤥!
Can you give a private special important infos …I have an exam 😢
What kind of infos?
@@JxJAVIATION I have oral exam to get an A&P and I don’t know what kind of questions they usually ask . Including documents
1:07 a human body in the stratosphere wouldn't burst like a balloon, it's only that it would have hypoxia set in.
Yes, that is true. Hypoxia will affect the human body first.
@@JxJAVIATION another thing is that the amount of oxygen in the atmosphere is the same as you go higher, but the molecules are further apart. Awesome video though !
No mention of the safety valve or the controller missing a lot of important info
Just focused on the basics in this video!
Don't Fear rights reserved and wrong failures everything is fine
Cool!
Echo. Bad sound. I know u are lying about tim. What did you do to Tim?
Tim is safe with me. I did this video with a very basic setup initially!! :)
2 MUCH PRESSURE
Yeah!
lmao this seems like such a jank system
Keeps the passengers safe though!
Always feel free to come up with something better!
@@lamalamalex not my job lmao
Thank you a lot
Thank you and Welcome!! Check out my other videos as well!