WHY A Passenger Must Pull on the Mask | Airline Pilot Explains
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- Опубликовано: 12 сен 2024
- The oxygen masks inside of an airplane doesn't pull oxygen from a big oxygen tank on the aircraft, its actually created from chemicals. In this video, I talk about how those chemicals are activated and why you don't have an oxygen tank like the airline pilots use on the flight deck.
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I honestly didn’t know most of this, and found myself listening with the intensity of someone actually in that situation. Thank you for another great and informative video!! 👍🏻
😆 ya its something most people don't really think about but it is from a Hollywood vs Reality movie I am working on for next week made me think of it.
@@74gear
When you said put on the oxygen mask and be quiet to listen for instructions, I keep remembering all those Hollywood movies where the passengers keeps on crying and shouting when they have on the masks. lol
I'm one of those (few) passengers who watch the flight attendants when they demonstrate how to use oxygen masks. Mostly cuz I don't want them to feel bad that no one else is paying attention--LOL. However, not until now did I realize the importance of "the tug" to start the flow of oxygen. Guess I wasn't paying as much attention as I thought! Thanks, Kelsey!
I’d prefer to take a nice hypoxia nap and wake up when we land 🤣
and in case of crash you just keep on napping forever...
How do you feel about brain damage?
@@cageordie he's already there. I think he can tell us.
Same
And I also forgot to say that I love your personality and the vibe that you're channel gives the viewers
thanks Jordan, thats really nice of you to say!!
Its only a pleasure, keep up the good work😊
74 Gear I have dreams of being a commercial pilot (can’t be military cause ADHD) any advice
4: Oxygen is going to make a fuel fire a whole lot worse once the tanks rupture.
5.tank under pressure have to be checked, maintained and replaced.
That's a LOT of burden.
A little aviation “trivia”. The 1996 ValuJet crash in the Everglades, was found to be caused mostly by improperly packaged plane oxygen generators in the cargo hold. They were expired and the company was transporting them. I placed the quotation marks on trivia because 110 people died and I’m sure to the families is not trivial.
Yeah the handling compay confused "expired" meaning out of date with "empty". The fire was so intense it burned a hole through the cabin floor. RIP all on board the Critter.
Once again, I learned something new. Thank you, Kelsey!
happy to share it with you Bram, thanks for watching.
I read that as "The Chameleon Inside your Oxygen Mask."
I'm off for a little lie down...
well... I guess you could also have a chameleon in there too, like a special request!
@@74gear Heh... "I've got a pet chameleon!"
"Where does it sleep?"
"No idea!" 🤣
Les Hemmings this comment camouflaged the sixth letter
74 Gear you are the best jokester I have ever met
"fake oxygen"
-74 Gear 2019
😂 ya for the record, its not real... its fake! 😂
Made in China oxygen!
You say stuff like that as a joke and you are pissing in the information pool. Many people will never get the joke. Like the flat earth.
Make Oxygen Great Again!!!
@@cageordie you obviously don't get the joke
I love your vibe. You provide so much interesting information but I LOVE how you provide it on your channel with your awesome editing skills. 🤣. Thank you.
Im a car enthusiast and was just about to type: What car u in?
A flying car :)))
I thought he was in a VW beetle at 1st.
That's an aircraft...
JasonZgaming 74 no kidding
I don’t know why a Tesla came to mind till she showed he’s inside an aircraft haha
On a lot of wide-body aircraft types like the B777, they DO actually use a large collection of compressed O2 cylinder tanks, stored behind the linings in the cargo area, for passenger emergency oxygen. The pressure can be displayed in the flight deck, and the tanks can be filled up by maintenance. On some airlines they just have to be replaced.
I demand organic, all-natural oxygen when I fly!
Is it vegan oxygen
Hi Kelsey. While it is true some planes may have a few oxygen generators for the passengers, 747-8 have oxygen bottles for the passengers just like the crew. The 747-8 has a minimum of 5 passenger bottles in the fwd cargo sidewall and can have as many as 18 in the ceiling of the forward cargo. We also have very strict leakage rates, NO LEAKS ALLOWED! Check out chapter 35 in the Aircraft Maintenance Manual (AMM).
If there is a pressurization problem in a freight plane, would the pilots make emergency descent similar as in passenger planes, or more subtle descent instead?
They would as the pilots oxygen system has limited resources too. More than the passengers, but still limited.
Good question.
Yes
That's an interesting hotel room
tell me about it, kind of cold at night without the engine going!
Lol
I totally thought he was in a car 😆. Also it doesn’t really get cold in LA. Except like a couple weeks in January
Real O: mm, I am so essential for you to breath
Chemical oxygen: Am I a joke to you??
June/July 2020, breathing not allowed. put your scamdemic mask on : (
I love your videos they are so fascinating! I really enjoy how you give them a humorous flair.
thanks shito glad you enjoy them!
Hello! I’m just here to say your videos are quite enjoyable to watch all the time, while still being very informative about the things you do. A very underrated RUclips channel! Anybody reading this, have a great day/night.
I think the engineers designed "fake Oxygen" not only because tanks would be heavy, leaking etc. but also because pure oxygen (O2) is an extremely flammable gas so it would be like carrying on board a bomb waiting to explode.The chemical reaction to produce Oxygen would minimize that risk and would make Oxygen available only when it's needed.
Another interesting video from you Kelsey (being an anesthesiologist I have to deal with 02 on a daily basis),thank you for sharing it.
#Kelseyfavouritepilot 😘
that I am sure was another thing they were thinking about when they did it... Thanks Nina, really appreciate that!
@@74gear Thank YOU
Hey Kelsey!! Great video once again, keep up the good work. Youre youtubr channel has come so far, I am a young aviation enthusiast and have been following youre channel for a very long time!! Love it
Thanks Jordan, glad you are enjoying it and thanks for being here and sharing it !!
@@74gear no problem Kelsey, keep up the amazing content
As a chemist + aviation enthusiast, I thought this was a great video!
Cover nose and mouth! I don’t recall Concorde pilots routinely wearing oxygen masks and they went way higher than the level you mentioned.
Different procedure for different airplanes.
"This product contains artificial flavors, colors and preservatives"
Very informative video! Thanks, Kelsey.
Glad to see you are enjoying your time off! Looking forward to the Cirrus video(s).
As an ATPL Pilot, Instructor and Regulator, that was a very good PSA, Kelsey. Thanks!
Omg that plain looks like a car inside hehehe
Informative. Hope I never need to use one, but knowing about the potential for heat and smell is great--one less thing to try not to panic about.
Hi Kelsey! Perfect timing! I am currently going through cabin crew training 😉👍.
Interesting
the mighty Jetstream, I was just talking about that plane last night!
@@74gear really... You can make a video flying jetstream one day 😋✈️
Nice that's why I passed out wearing the oxygen mask thanks "Oxygen"
I thought he was in his Tesla car!😂😂
yeah,the new cybertruck XD
I really like when nobody listens to the cabin crew safety briefing and then puts on their mask only on mouth
Darwin at work.
In a situation where the oxygen masks drop I don't think people will be complaining that 4 dropped where there were only 3 seats lol 😋
Just want to comment here, I think you are awesome! Love your vids
RUclips comment section engineer here. Another added benefit of chemical vs gaseous 02 is that it can function independently from any electrical systems in the plane. In any sort of catastrophic failure it is it's own system that works independently from the plane. Unfortunately this reaction is literally ripping off atoms from each other (mainly hydrogen from oxygen in hydrogen peroxide due to it's abundance of 02 and easability/cost effectiveness to make) so it's going to basically generate heat no matter what.
Pilot 👨✈️ Kelsey you are my hero as I’ve said I am extremely afraid of flying with your advice I concentrate and try to learn as much as possible 💋
i remember from middle-school, welding class - A before O, or up you go ↑
acetylene before oxygen or else massive explosion. Another reason no Oxygen tanks on planes,
Oxygen by itself is extremely explosive!
There were older planes with oxygen bottles, one of them let go on a Qantas 747, blew a hole through the fuselage and through the roof via a door handle. The pilots thought a bomb had gone off.
That is Such good information I never even thought about where the oxygen came from how crazy is that? I bet there’s a whole bunch of people that don’t know what I just learned thank you Kelsey
I have heard numerous times we are to "tug" on the mask to start the flow of oxygen, however; no one ever explains how firm the tug should be. I have also heard that sometimes passengers tug too hard and accidentally detach the hose from the oxygen generator. So how hard is appropriate?
Woww, kelsey now doing technical videos✌️
Great points! One more reason our O2 is actually in tanks is that it needs to be pressurized so to have a positive pressure differential to expell smoke/fumes from the mask and allow us to safely bring the aircraft down
lots of aircraft types have passenger oxygen stored in cylinders located in sidewalls of cargo bays ie B747 B777 B787 A380 .
I never knew ANY of this stuff. Thanks for this.
Yeah I worked on those systems in the air force (KC-10s) Very efficient and space saving👍.
Kelsey! I’m so mad I won’t be at the in-n-out in LA today! I would really like to meet your handsome face! I’m originally from LA, but currently stationed in DC.
Thank you for the awesome videos! ♥️
Thanks Wanda, well if this channel ever gets really big maybe I will do more of these meet ups in the future.
whatcha talkin bout willis? Your channel is really big! Look at all these people posting in the comments! You are truly admired!
In the middle of hardcore Christmas cleaning...but I gotta pause that to rep for the 74 Crew. Edit: yep I figured the extra weight of all those oxygen tanks would be an issue. Awesome video as always!!!
off to an early start cleaning Genevieve!!! thanks for watching 👍
Everyone else: records videos in their cars
74 Gear: records video in hot rod airplane
How do pilots taxi exackly at the yellow line? Tried it in a simulator and I couldn't do it
Practice.
Practice! The first time I did it for real in a Cessna 172, I taxid like I was drunk, swerving all over the place!
It’s just takes lots of practice
Thanks
In a Cessna, and if in the left seat, keep your right foot over the yellow line. The left foot in the other seat. Works great.
Love your vids Kelsey! I'm a huge fan. I learned a lot from this one. I always thought that there was a master oxygen tank on planes that got topped off on a regular basis. Interesting to know that for cost, maintenance, and weight reasons there are chem packs that generate O2 throughout the plane. Personally I don't have a problem breathing 'fake' O2 so I can live long enough for you to get the plane down to 15-10k denser air that I can breathe without having to rely on the fake stuff.
I did nearly blow coffee through my nose when you mentioned 'wearing your own oxygen tank' a few times. I'm a scuba diver, long distance sailor, and occasionally a pilot when friends let me hold the stick on their planes during straight and level flight conditions. The image I pictured of you wearing a scuba rig while piloting an aircraft was hilarious!
I love the underlying principle I feel from your videos of making a few mistakes and using them to learn and grow from. Pretty much the only way I know of to become highly competant at difficult, critical, and important tasks. God knows I wouldn't even be close to having the confidence to cross the Atlantic solo to my family and roots in Germany in a 50yo 26' boat next spring if I didn't learn and survive a few tough lessons along the way.
Keep on doing what you do so well! Love the fact that you're learning to have some personal fun with the Cirrus. Looking forward to seeing and hearing more about that. Hope you had a chance to head north from Santa Monica over Malibu and possibly as far up that magnificent coastline to Santa Barbara. I used to surf and fly that stretch of coastline in fix wing Schweizer gliders as a teenager.
Good times in great digs! Keep on keep'n on Kelsey!
These oxygen generators are actually what caused the crash of ValuJet flight 592 in Florida. Their cargo was labeled "used oxygen containers." When in fact, what they had on board were expired oxygen generators. A few of them were activated in the cargo hold. When these activate they generate a tremendous amount of heat. It started a fire and filled the cabin with smoke.
Thank you for the information sir👍👍
glad you enjoyed it Sagar.
You're very into pop culture aren't you Kelsey?
Awesome videos. I love learning more about aviation. Thanks much! You earned a subscriber :)
4:27 Just roll down a window...
4:47 - "Captain, the computer is preventing us from going to a lower altitude, we can't drop below 32,000!"
You talking about this, gave me flashbacks to being in the Navy. SCBA uses a very similar style canister to produce o2. We were never warned about the stink. We were just told, "Smokers, you may want to wait a while before you light up a cigarette" LOL
'in the US it's 41,000' - is there a reason it's different elsewhere, and why?
American lungs cant handle going as high
Different regulations in different countries, as USA has FAA regs (FARs) and Europe for example EASA. Many things change, including for example at what altitude you switch from local altimeter setting to standard (18.000 ft in the US, 4.000 I believe it was in some country in the Caribbean...can't remember) or even the unit you use for altimeter setting (inches of mercury in the US, standard being 29.92, and milibars in many other countries with the standard being 1013)
The reason : faa
Coming up
not sure how I got started with that, but everyone liked it 😂
Triple thumbs up!! I watched this again with my family so that they are aware of what to do and what actually happens when using these masks. I am sure if the bad small and foggy cabin was more common knowledge among passengers, it would reduce the amount of panic in an emergency situation. Airlines should include that info in their safety video demos. Thank you for a most informative clip!!
Hows your day kelsey ive bren a fan since october
day is going well, thanks for asking how you doing Blue?
They should have like a fun fact book/explanation book on planes that explains this stuff so people won’t freak out, i know the flight attendants will try to calm people down, but I feel like this would help calm down people.
I remember flying with Laker DC10-10 (repro from a BA YYZ-LHR/LGW) and the middle seats had the mask in the seat backs, the card also referenced the unit to keep warm/don’t touch. The airline I once worked for we had attitude compensating bottle, 3 to be precise and 2 therapeutic oxygen bottles. 👍✌️
Another good one. Thanks Kelsey. Looking forward to more....... Comin' up.
I think this is the most informative video I've seen on the intetrwebz for an airline traveler. Thank you, Kelsey!
This should replace the standard FA announcement about the masks. I've only flown a few times, but don't recall any emphasis put on the importance of pulling on the strap to activate it. I feel that could lead a lot of people to unknowingly misuse it and not activate it. They also didn't mention anything about the cheat, odor, and smoke potential, which can confuse and panic passengers even more.
I would guess the chemically generated oxygen is also chosen, because either small tanks or large tanks with oxygen-lines are also a firehazard in case of leaks. Marine engineer worked as technical chief of a hospital here, so O2 leaks, as well as NO2 leaks were always a concern in the distributing pipesystem. Elevated O2 levels in close proximity to electrical systems are always a risk, though not likely a big risk. There would have to be an electrical fault as well, or open circuit that generate a spark.
Plenty of aircraft fly around with oxygen tanks for the passengers. These oxygen tanks are (in case of a 777) in the aft cargo compartment behind the sidewalls. These are routed to the passengers with tubes. Accessibility to these tanks is good. The sidewall liners are closed with pushbuttons. This makes it very easy to check the pressure. If the pressure is too low they are not refilled but replaced. Its a simple task that takes less than 10 minutes per tank. You do have to be carefull when working with oxygen because it can ignite if it comes into contact with oil or grease. If a aircraft has oxygen tanks for passengers, it is seperate from the oxygen system for the pilots. Also, when those masks come down, and they get pulled, its ALOT less effort to replace 8 oxygen tanks than to replace 100+ oxygen generaters.
Hey Kelsey, will you tell your FAs not to worry so much about their hair and makeup when they do their O2 mask demo before takeoff? They usually hold the mask away from their face and the elastic away from the back of their heads, as the correct way of donning the mask, and I've heard that some (less intelligent) passengers were led to believe that that was the posture to adopt in an emergency. I thought that the trg of FAs was revised and now dictated that the FAs were not allowed to demo the mask that way any more, but that they had to put the mask over their nose and mouth for real, but I flew three weeks ago, and the WestJet FAs were not complying with that change. I absolutely love your videos! This was so informative! Thank you
The oxygen generators produce a lot of heat as well, it is stored separated, pressurised air tanks would leak out over time.
The compact oxygen generators are lightweight and are changed out for new ones every few years.
There are small compressed oxygen cylinders that can be carried around and are in compartments, usually 8 or more and these are for cabin staff..
There you go Grant you seem to be familiar with it all!
Only shorthaul aircraft generally have oxygen generators for the passengers. Longhaul aircraft have an oxygen manifold supplied by Oxygen Cylinders stored in the cargo bays.
What?? That doesnt sound right🤔 Which aircraft types?
One of the things I know a lot about, but hope I never experience- Explosive decompression. Awesome video btw.👍✈️
If in a panic situation is it possible to pull the mask so hard that it can break?
Btw another great video!!
Yes. You can pull the hose loose if you pull *too* hard on the mask. The hose is *easily* pressed back onto the fitting. Remember, pull *firmly* , don't *yank* it.
That’s interesting. I’m not a chemist but since oxygen is it’s own atom despite usually pairing up together in twos I figure they spark a chemical reaction which causes another chemical to break down into oxygen and other molecules.
exactly, and a lot lighter to transport like that than in a big tank.
Yes. The compounds are all over rich in oxygen, so they decompose leaving an oxide and spare oxygen. A simple example, not used for this purpose, is hydrogen peroxide breaking down to oxygen and water. 2 H2O2 => 2 H2O + O2. And a lot of heat.
Omg... Sr20 and sr22 are my fave aircraft
I like the verbal fail counter. Classic 😂
Thanks Kelsey. I don't fly that much but I found this video educational. Plus you answered questions I didnt realize I had. LOL
Lots of heat for sure. I recall an air incident that several oxygen generators were bein transported and activated in flight causing a fire....😲😲😲.You were close to the sonoma airport that gives biplane rides...try it😀
I haven't been in a biplane ya maybe I will try it!
That was Valujet in Florida. Air Disasters did an episode on it.
@@74gear I've ridden in a Ford Tri-Motor twice (about 45-50 Years apart) but a ride in a Stearman biplane and a DC-3 still remain on the bucket list. ;)
OBA'S are also used on American warships for firefighting.
Just watching your videos make me smile thank you for the effort❤️❤️
Thanks for another great video , see you in Sydney Australia
I have watched a lot of air crash investigations, and they sometimes sugar cote the suituation but always give the Necessary information to the passengers.
I wish there was " Laughing Gas " too ! 😆
that's why I prefer to sit in the front of the plane. When it nosedives the chances of the refreshment cart stopping by are higher. grab a couple of those little bottles, that's as good as it gets.
Oxygen mixture that is used at dentists for kids have usualy higher percentage of it. Just saying😁
More really useful info from Kelsey. Thank you!!!!
Another interesting video!
Not sure if you have answered this in another video already but what is up with the blinds on the planes why do they need to be up during take off and landing?
There's a couple of reasons for this
1. So rescue crews can see inside in the event of an emergency landing
2. If it's dark outside (and this ties in with having the lights dimmed for take-off and landing) it allows your eyes to adapt to the ambient light. That way if you have to evacuate for any reason your eyes won't need to adjust to see properly.
The same applies for if it's bright outside, your eyes can adjust to the brightness so it won't just be a wash of white when you get out of that emergency exit
so you can see during an evacuation if there is something out there before you open the door
Additional to the already mentioned. You want to know if there is a fire on one side of the plane after the landing did go wrong. So you can use the exit on the other side.
Well, this was eerily reassuring. 🙌🏼 #themoreyouknow
Who do you fly for? I love your videos!
Since as it stands that it is very very hard to change atomic nuclei composition, if you get oxygen from something, it is because there is oxygen in a compound of some sort that reacts and releases that bit of the compound....
Thanks, Kelsey. Awesome channel!
Thanks for explaining the extra masks. I was wondering how that worked with lap babies. The first time we flew with our daughter, she was 4 months old. I had flown before, so I knew what to expect. But as a new mom flying with a baby, I had a panic moment on our first flight because I was freaking out about “what if we crash, will there be an oxygen mask for her? How do I get one for her?” Everything was fine, but that was on my mind. Now I know!
Oxygen tanks and the necessary equipment is much more complicated than these cartouches. It is very expensive to build and maintain to get the reliability you need.
The cartouches however can be easily replaced and maintained outside the aircraft. They do not need to be specially build for this aircraft and can be mass produced. And you don't need a lot of manpower and time to maintain them. If there is a problem a mechanic can replace the cartouche in some minutes not hours and a grounded aircraft if that happens to a tank system.
There are more reasons to use that system, but these are the basics.
Thank you now I think I have alittle more knowledge. On a military planes never liked the bag over head plastic bag. Must be similar to commercial plane yours Evan's w robinson ret sgt
Kelsey, some commercial jets had oxygen tanks in the past, like 12 or 15 liter bottles installed in the wall for passenger. There was an event where one bottle exploded and ripped a part of the fuselage. I think after that accident they implemented a new rule regarding oxygen tanks on board. It is true, like 20 x15 liters tanks are like 500kg or almost 1000lbs. They are heavy and in a case of fire they would be a trigger for even bigger disaster( fire+oxygen) very bad combination.
Are there still oxygen tanks on the plane for emergency purposes? Like in case someone has a heart attack? I imagine the oxygen used for when depressurization occurs would be inadequate.
@@Boundwithflame23 For cabin crew in front and at the back there should be couple of 5-7 liter bottle with oxygen, it could be also used for first aid.The most important thing is to have some good trained cabin crew to make first aid like they are trained to do. Cabin crew needs oxygen bottle so they can move free and help and assist other passengers.Imagine if some need help and cabin crew can not leave seats because they have only oxygen provided from the ceiling like others.
@@Boundwithflame23 Tanks for medical use and for the cabin crew are mandatory.
Ah. I figured as much. I was just curious because of the bit about a new rule being implemented.
Edit cuz my sleepy brain thought you were someone else on first glance, Touring Jedi.
Hey, A question about pilots wearing oxygen masks. How was it with the Concorde? Did its pilots have to wear them all the way throughout their flights?
No. Only when one pilot was out of the cockpit. Getting down from 65000 feet in a hurry would have been a real trick.
Do Hollywood versus reality on the movie Midway
Mind blown, but make sense from the design of the aircraft. also oxygen tend to go boom when heated. so having little packets of "ready to make" o2 is also safer
He should change from "I'm a 747 pilot"
to
"I'm a really happy guy who loves my life and what I do and I always smile"
Why is the channel named 74 Gear and not 747 Gear? That's what i'm wondering about. 🤨💜There has to be an explanation, but i don't know enough about aviation to figure it out. Maybe Kelsey will answer it in a video!
Excellent info on things I’ve always wondered about. Thanx for posting. Great info on the stink and smoke associated with mask deployment. Some follow up questions: How do the masks get deployed? Is there a switch that triggers them? Is it done automatically? If switch, is it actuated by pilot or flight attendant? Is there an alarm in the cockpit so that the pilots see there is a need to descend at once? How hard does one need to yank to initiate flow? Why does the bag not inflate?
great follow up questions, and if you don't mind i'd like to add one? Some one who is panicking might yank TOO hard. How hard of a pull will loosen a connection somewhere so not enough oxygen is available for normal breathing?
There is a switch in the cockpit and also an automatic deployment when the cabin pressure gets too low.
There is an alarm too. More like all the cockpit is yelling at you and of course you can feel a rapid decompression.
Just give it a firm pull, that would be enough. It is not designed to be used as a rope.
The bag may inflate like a balloon if there is more pressure that on the outside. It acts as a pressure control device. You will get enough oxygen even if the bag does not inflate.
I love how they expect you to breathe "normally"
yeah right
This is AMAZING information!!
Thanks for another informative video.