High altitude flight over the ocean, we had to wear oxygen masks to avoid hypoxia flying in the flight levels. Experience flying to the Arctic Circle: • My Arctic Circle flyin...
I am a pulmonologist and critical care physician - I don’t want to normalize this, but just as an interesting point of education I’ll add that the U.S. military performed hypoxia studies on pilots decades ago. The studies found that humans were able to perform tasks including calculus, problem solving, reading, and communicating without any change in their mental capabilities down to 70-75% FiO2.
@@michaelscott33huh, interesting! I’d assume a good part of that would go along with their training? I’m an EMT so obviously you have way more experience than me, but I’ve seen patients get AMS from 83% SpO2, let alone 70-75.
From the perspective of optimal performance, 95% or higher is best.I train my team to aim for 98-99% at all times. And if I were flying a plane, I'd want to be at optimal peformance for clear thinking and neurological control. Putting together all comments, it seems like there's a range of increasing danger all the way from 99% down to 70%. So danger arises in specific cases depending on the demand the situation places on the pilot. Valuable and informative video about how to stay safe in unusual altitude conditions. And as hypoxia can quickly create a crisis that can lead to either death in the air or a crash, very useful.
They climbed up to that altitude without masks on so there blood oxygen levels were low, it looks like they checked the levels fairly quickly after putting the masks on.
I'm not an expert but it's my impression that 83% is in the deadly range. That it should be kept well above 90. That sustained 83% is as deadly as the wings falling off. A Cessna Citation crashed the other day presumably because of hypoxia. Imagine a little gremlin sitting on the wing with an electric saw. It's low key important.
Yeah 83% is extremely low. I think what is officially hypoxic will very by who you ask but certainly below 90, I’m in EMT school right now and they train us to put people on oxygen below about 94% depending on their presentation and other factors. If your sats are at 83 you are dangerously low.
in the US it’s above 12500 for 30 minutes without oxygen is allowed but for more than 30 minutes supplemental oxygen is required, Thanks for all the informative videos!!! really enjoy them 👊
Lucky it doesn't apply to cars in Peru. I drive around regularly at 16 000 feet aprox with my car. My father in law is from around 14 000 feet... I mean 23 000 is some real altitude, that's over 7000 meters, heaven't been that high yet myself. Around 18 000 is more or less what I've been to (without oxygen). But I do sincerely consider buying supplemental oxygen for my car, had a passenger get altitude sick once and there is nothing you can do but drive on and try to get down the mountain as fast as possible.
If you live at high altitudes your body adjusts to the ambient oxygen level, notably by producing more red blood cells than those of us (the vast majority of the world's population) who live below 2,000ft/ 600m. Long distance runners sometimes travel to elevated areas for a period of months ahead of competition so their body creates more red blood cells, without resorting to the illegal use of drugs to achieve the same thing.
living more or less at sea level @@pulaski1 but yes, if you come and visit Peru, don't immediatly fly to lake titikaka and when I know I'll be at over 5000m i do plan for time to get used to the altitude before trying any real physical activity. Up to 5000 though, my personal experience is that I'm totally fine. certainly not gonna try and run a marathon at that level but a several day hike is no issue for me. Luckily for my kids and wife it's mostly similar. But e.g. my sister suffers way more and needs time to adapt. As for aviation, I do get it. I *know* I'm fine at 18 000 feet. But you can't rely on what each pilot feels should be fine for him. You take the lowest altitude anybody had any real issue with ever and than mandate oxygen from there on out just to be safe.
@@DavidSmith-vr1nb Oh hell yeah does my engine struggle. Normally aspirated engine. It takes about 2h, without traffic even less from 1000 feet to 16 000 feet... at the uper parts I have to drive my poor baby permenantly near its max rpm to get any acceleration. And you can't improve that all to much with tuning or something, if your car doesn't auto adjust the fuel to air mixture you can obviously improve that, but with very little air that just means you're also getting very little fuel into the engine so my engine is running smooth but with much reduced power... the only thing that would really help is some form of compression. And when driving other cars, you really notice if it has a turbo, helps a lot. Mine doesn't.
@@hirohamada9693 They have systems that concentrate oxygen from air so that an aircraft can loiter over an area indefinitely. They apply compressed air to a "molecular sieve" (essentially a compressed bed of silica gel) the small molecules (like nitrogen) pass through and the oxygen and larger molecules stay on the inlet side, Eaton calls theirs "OBOGS". They probably aren't used much, if at all, on civilian aircraft because the systems are finicky, they aren't doing mid air refueling and you're not going to be flying at high altitudes in an unpressurized aircraft except for short durations. As for how much, O2 they use, not much. They're not breathing pure O2, just supplementing.
after watching what happened to people being put into hypoxia for training its scary how fast it can happen and they just kind of fade out and dont know they are passing out and dying
Small correction: “the *PARTIAL PRESSURE* of oxygen is half what it would be on the ground” Oxygen ‘amount’ is a pretty constant 21% for the entirety of the troposphere. It’s the reduction in pressure (thus partial pressure) which doesn’t provide as much (or enough) force to squeeze the oxygen molecules through the alveoli and into the blood.
I don’t know why the o2 masks should be that uncomfortable. I wear a CPAP mask 7 hours a night, same concept. They just need to get better fitting equipment. If I were planning to fly and require supplemental O2 I’d be sure to have my own fitted mask, not a stock piece of plastic installed in the plane.
Incredibly impressive for the SR22T to be able to climb up to 230! What’s it’s absolute ceiling? What was the TAS and GS for that leg and the time to climb! Even when we climb from 200-230 we only get around
So many questions around a pulse oximetery precentage as a paramedic i would like to explain. They check their oxygen constantly. Which i believe one person took their reading then gave it to the other. With that the device would need to recalibrate when taken off the finger and with thise cheap devices even though accurate most of the time. Take some time to calibrate. Even my monitor that is 35000 dollars takes a few seconds to calibrate on a finger. It will show. 77% thrn slowly go up to 98%.
I don't know if 85% is okay (I wanna say below 90% indicates you need to turn the O2 flow up but I can't remember), but that 95% number comes with the assumption that you're in conditions where you shouldn't be oxygen starved.
Right. Most people get that wrong and even teachers get it wrong. What decreases with altitude is the overall number of "air" molecules in every liter of you inhale. Lower pressure means more empty (= no air = nothing) space between each molecule. The percentage of each type of molecule stays the same.
Hi guys, I’m new to the aviation world and had a question about the SR22. What happens if the pilot in the left seat is right handed? Does that hinder their ability to use the side stick? Or would they be on the right side of the plane and be the pilot in command there? Thanks anyone who can help!
Hello. good question - I’m right handed but the pilot in command in an aeroplane generally always sits on the left. Even if. the aircraft has a central yoke, rather than the side stick, the pilot will generally still use their left hand to move it. It’s not as hard as it sounds and quick to get used to. Thanks for asking.
Shouldn’t you be using oxygen way before these heights you were referring? As your measuring is showing 83 that beeing a clear signal that you were already late with the mask. Not really professional or a good example to be showing off 😂
These masks look very uncomforable. There are way better models on the market. Even the old leather masks from WW2 are more comfortable than that cheap plastic stuff. The bomber crews had to wear them for 10 or 12 hours straight, heading for the target at 25000 ft and climbing to 30000 ft and more after dropping the bombs. Without real cabin heating. Something is wrong with your oxigen reader. At 83% you should already have blue lips and finger tips, massively reduced physical strength and critically reduced mental capabilities. The 83% reading is wrong, it physically can not be true. If you want to use that device for security, check how to use it correctly and check if it works correctly.
I hope that 83% reeding was an error, that is dangerously low
I am a pulmonologist and critical care physician - I don’t want to normalize this, but just as an interesting point of education I’ll add that the U.S. military performed hypoxia studies on pilots decades ago. The studies found that humans were able to perform tasks including calculus, problem solving, reading, and communicating without any change in their mental capabilities down to 70-75% FiO2.
@@michaelscott33huh, interesting! I’d assume a good part of that would go along with their training? I’m an EMT so obviously you have way more experience than me, but I’ve seen patients get AMS from 83% SpO2, let alone 70-75.
@@michaelscott33but ist 70% FiO2 a lot, compared to the usual 20%? 70% SPO2 on the other being rather low
From the perspective of optimal performance, 95% or higher is best.I train my team to aim for 98-99% at all times. And if I were flying a plane, I'd want to be at optimal peformance for clear thinking and neurological control. Putting together all comments, it seems like there's a range of increasing danger all the way from 99% down to 70%. So danger arises in specific cases depending on the demand the situation places on the pilot.
Valuable and informative video about how to stay safe in unusual altitude conditions. And as hypoxia can quickly create a crisis that can lead to either death in the air or a crash, very useful.
They climbed up to that altitude without masks on so there blood oxygen levels were low, it looks like they checked the levels fairly quickly after putting the masks on.
I'm not an expert but it's my impression that 83% is in the deadly range. That it should be kept well above 90. That sustained 83% is as deadly as the wings falling off. A Cessna Citation crashed the other day presumably because of hypoxia. Imagine a little gremlin sitting on the wing with an electric saw. It's low key important.
You are 100% correct
Yeah 83% is extremely low. I think what is officially hypoxic will very by who you ask but certainly below 90, I’m in EMT school right now and they train us to put people on oxygen below about 94% depending on their presentation and other factors. If your sats are at 83 you are dangerously low.
@@Simon_B74 yeah. Being below 90-85 for an extended period of time, you risk permanent brain damage.
I thought it was 83 for heart rate, and the smaller, fainter 88 in the corner for blood o2. Not sure but that’s a little bit more reasonable
@@milesbowen9433if you look at the text below it says sp02 under 83 and PR under 88.
in the US it’s above 12500 for 30 minutes without oxygen is allowed but for more than 30 minutes supplemental oxygen is required, Thanks for all the informative videos!!! really enjoy them 👊
And all time above 14000
ya@@BrockNielsen
That's crazy. There are towns higher up than that. Cerro de Pasco is at 14300 feet aprox. I drive around regularly at 16 000 feet aprox with my car.
@@martinschlegel1823 dang that’s crazy
@@martinschlegel1823Bolivia?
Lucky it doesn't apply to cars in Peru.
I drive around regularly at 16 000 feet aprox with my car. My father in law is from around 14 000 feet...
I mean 23 000 is some real altitude, that's over 7000 meters, heaven't been that high yet myself. Around 18 000 is more or less what I've been to (without oxygen). But I do sincerely consider buying supplemental oxygen for my car, had a passenger get altitude sick once and there is nothing you can do but drive on and try to get down the mountain as fast as possible.
If you live at high altitudes your body adjusts to the ambient oxygen level, notably by producing more red blood cells than those of us (the vast majority of the world's population) who live below 2,000ft/ 600m.
Long distance runners sometimes travel to elevated areas for a period of months ahead of competition so their body creates more red blood cells, without resorting to the illegal use of drugs to achieve the same thing.
living more or less at sea level @@pulaski1
but yes, if you come and visit Peru, don't immediatly fly to lake titikaka and when I know I'll be at over 5000m i do plan for time to get used to the altitude before trying any real physical activity. Up to 5000 though, my personal experience is that I'm totally fine. certainly not gonna try and run a marathon at that level but a several day hike is no issue for me. Luckily for my kids and wife it's mostly similar. But e.g. my sister suffers way more and needs time to adapt. As for aviation, I do get it. I *know* I'm fine at 18 000 feet. But you can't rely on what each pilot feels should be fine for him. You take the lowest altitude anybody had any real issue with ever and than mandate oxygen from there on out just to be safe.
Does your engine also struggle, or is it adjusted to compensate?
@@DavidSmith-vr1nb Oh hell yeah does my engine struggle. Normally aspirated engine. It takes about 2h, without traffic even less from 1000 feet to 16 000 feet... at the uper parts I have to drive my poor baby permenantly near its max rpm to get any acceleration. And you can't improve that all to much with tuning or something, if your car doesn't auto adjust the fuel to air mixture you can obviously improve that, but with very little air that just means you're also getting very little fuel into the engine so my engine is running smooth but with much reduced power... the only thing that would really help is some form of compression. And when driving other cars, you really notice if it has a turbo, helps a lot. Mine doesn't.
Tragically 3 people died when a Cessna 172 crashed yesterday in Iceland
I'm gonna say that the 83% sats was when it was in the middle of its usual erratic calibration 😂 because I don't want to imagine the outcome otherwise
Pilots smart enough to check their O2 levels with a PulseOx.
Also, pilots not smart enough to use correctly.
In Austria the rule is: all flights above 10.000ft for longer than 30 minutes are required to wear oxygen masks
bro knew exactly what he was doing when he put on those aviators
???
@@Tay12345 oxygen mask + aviator sunglasses = looks like a fighter pilot/Top Gun
This is cool! Is the oxygen kept in a store-bought tank? And how much is required for that long of a flight?
1. Yes it’s probably kept in a store bought tank, it would be too impure to get your own from the air. 2. A lot
@@hirohamada9693 They have systems that concentrate oxygen from air so that an aircraft can loiter over an area indefinitely. They apply compressed air to a "molecular sieve" (essentially a compressed bed of silica gel) the small molecules (like nitrogen) pass through and the oxygen and larger molecules stay on the inlet side, Eaton calls theirs "OBOGS".
They probably aren't used much, if at all, on civilian aircraft because the systems are finicky, they aren't doing mid air refueling and you're not going to be flying at high altitudes in an unpressurized aircraft except for short durations.
As for how much, O2 they use, not much. They're not breathing pure O2, just supplementing.
Now imagine, somewhere in the Himalayas, the sherpas climb 8000 meteres without the need of oxygen masks. Truly impressive!
after watching what happened to people being put into hypoxia for training its scary how fast it can happen and they just kind of fade out and dont know they are passing out and dying
Small correction: “the *PARTIAL PRESSURE* of oxygen is half what it would be on the ground”
Oxygen ‘amount’ is a pretty constant 21% for the entirety of the troposphere.
It’s the reduction in pressure (thus partial pressure) which doesn’t provide as much (or enough) force to squeeze the oxygen molecules through the alveoli and into the blood.
Was there really something wrong with the masks, causing your Sp02 lvl to drop @StefanDrury?
A lot of people are going to feel very uncomfortable at well below 14k. I'm taking from personal experience.
I don’t know why the o2 masks should be that uncomfortable. I wear a CPAP mask 7 hours a night, same concept. They just need to get better fitting equipment. If I were planning to fly and require supplemental O2 I’d be sure to have my own fitted mask, not a stock piece of plastic installed in the plane.
well you'd use it like 2-4 times a year, for most folks at least.
I often just squeeze my nail and watch the colour return
Ewh just put on a cannula
Thats a circulation test though, not O2 sat.
3 Hrs? Bomber Command and 8th Air Force veterans generate hysterical laughter!! 😂
My son is in the AF and beginning his training with the hypoxia class/physiology next week. We love our fly boys around here. ❤
Next time, hold your finger over the overpressure vents and it'll fill the rebreather mask making maks more efficient at delivering oxygen
Incredibly impressive for the SR22T to be able to climb up to 230! What’s it’s absolute ceiling? What was the TAS and GS for that leg and the time to climb!
Even when we climb from 200-230 we only get around
its*
its lighter
So many questions around a pulse oximetery precentage as a paramedic i would like to explain. They check their oxygen constantly. Which i believe one person took their reading then gave it to the other. With that the device would need to recalibrate when taken off the finger and with thise cheap devices even though accurate most of the time. Take some time to calibrate. Even my monitor that is 35000 dollars takes a few seconds to calibrate on a finger. It will show. 77% thrn slowly go up to 98%.
I thought it was 12,500'...waiting till 14,000' is a bit late.IMHO
Not sure bout 14,000? But oxygen should be used above 9000ft
Would a nose canula work? (Not sure how to spell that). Would be much more comfortable.
Your literally suppose to call your healthcare provider if your spo2 is lower than 95% according to minessota department of health
Actually. Not litterally
I don't know if 85% is okay (I wanna say below 90% indicates you need to turn the O2 flow up but I can't remember), but that 95% number comes with the assumption that you're in conditions where you shouldn't be oxygen starved.
Probably?
Not only hypoxia, but also hyperventilation, or both
You're gonna want to make sure that reservoir bag is full of O2 on that mask. Love your content, just a safety concern.
The percentage of oxygen in air is the same at sea level as it is at high altitudes, which is around 21% what changes is the atmospheric pressure.
Right. Most people get that wrong and even teachers get it wrong. What decreases with altitude is the overall number of "air" molecules in every liter of you inhale. Lower pressure means more empty (= no air = nothing) space between each molecule. The percentage of each type of molecule stays the same.
No substitute for formal training and following the rules.
🫡
What's were you flying?
It's a Cirrus SR22T (Turbo).
@@StefanDruryIn this case "turbo" is a pretty key word! lol
Yes. But what about those who wear the musk for longer. I wear my musk for 12 or 13 hours per day.
It's killed fighter pilots, forgetting or failed the oxygen mask/switch at the required altitude !!
no inflation of the bags?
Welcome to wick lad!
Hi guys, I’m new to the aviation world and had a question about the SR22. What happens if the pilot in the left seat is right handed? Does that hinder their ability to use the side stick? Or would they be on the right side of the plane and be the pilot in command there? Thanks anyone who can help!
Hello. good question - I’m right handed but the pilot in command in an aeroplane generally always sits on the left. Even if. the aircraft has a central yoke, rather than the side stick, the pilot will generally still use their left hand to move it. It’s not as hard as it sounds and quick to get used to. Thanks for asking.
@@StefanDrury thanks, I guess it would feel natural after a while
The immersion suit isnt comfortable either...but you are still wearing it.
Why isnt your co pilot?
Just open the window.
If planes need to go higher at times, why are they just pressurised?
Would make more expensive, not to mention heavier.
Make sure the oxygen bag is inflated before putting on the mask
It doesn't work like that. It can be uninflated and still delivers the oxygen. In fact, most cases they won't be inflated
2200ft before using 02??? Should have been on when going through 1200ft. Not surprised you are getting pc02 in low 80’s and hypoxia alerts…
FAA regs say 12.5 kft to 14kft is okay without O2 for up to 30 minutes.
I wouldn’t say FL230 is “high up in the flight levels.” Still high for a single engine though.
Shouldn’t you be using oxygen way before these heights you were referring? As your measuring is showing 83 that beeing a clear signal that you were already late with the mask. Not really professional or a good example to be showing off 😂
That bag is supposed to be inflated, that’s how the mask ensures a constant supply of fresh oxygen
These masks look very uncomforable. There are way better models on the market. Even the old leather masks from WW2 are more comfortable than that cheap plastic stuff. The bomber crews had to wear them for 10 or 12 hours straight, heading for the target at 25000 ft and climbing to 30000 ft and more after dropping the bombs. Without real cabin heating.
Something is wrong with your oxigen reader. At 83% you should already have blue lips and finger tips, massively reduced physical strength and critically reduced mental capabilities. The 83% reading is wrong, it physically can not be true. If you want to use that device for security, check how to use it correctly and check if it works correctly.
83% 😂😂😂😂😂😂😂😂😂😂😂😂
If your oximeter shows 83%, you're likely to be 6 feet under rather than 23,000 above. 🤌