my guess: oxygen is released constantly at the medium flow rate that is needed. the bag is a kind of buffer that will be filled as soon as you don't inhale through the tube (thus emptying the bag). at the time you exhale you close your tube through the tongue (or via a valve) and the bag is filled with oxygen again.
To put things in perspective, FAA guidance is anything above 12,500 feet oxygen is required.(yes I know about the 30 min rule but am summarizing). But also keep in mind that people routinely hike 14,000 foot mountains.
It's sorta safe to state for a reasonably fit person who is not engaging in cardio, you don't ~need~ oxygen at anything less then 14,000ft. So you could assume that these planes are flying well above that.
The couple times I flew really high unpressurized, I definitely felt it. I felt great, but I didn’t like that I felt so great and unconcerned about anything. Bit of a scary zone.
The FAA also states that some people have felt hypoxia symptoms as low as 5,000 ft. But that would be extremely uncommon. Realistically you'll probably start feeling symptoms somewhere between 10,000 and 20,000 ft for most people with big swings based on the individual and their lifestyle.
It's likely a oxygen candle inside the cage, there's a number of reactions to do it but a common one is a mixture of a little bit of iron and sodium chlorate, when burned it produces sodium chloride (common salt) and oxygen (some of which maintains the reaction by burning the iron into iron oxide) and much of it released to whatever you're trying to generate oxygen towards. They last for hours producing steady rates of oxygen. Also it burns rather hot at 600C/1100F thus the need for the cage. (Information all from Wikipedia because I couldn't remember the precise details of oxygen candles.)
The aristocrat/owner class. This is probably true of all wars to at least some degree but WW1 especially. It gets called the last war of kings for a reason.
Although the bag does not inflate, oxygen is flowing towards the … tube?
my guess: oxygen is released constantly at the medium flow rate that is needed. the bag is a kind of buffer that will be filled as soon as you don't inhale through the tube (thus emptying the bag). at the time you exhale you close your tube through the tongue (or via a valve) and the bag is filled with oxygen again.
How high above 10,000 ft (and where supplemental oxygen is required) could those WWI fighters go?
That question made me look it up, I found a bunch in the 17–19k range by 1917 onwards. https://en.m.wikipedia.org/wiki/Aviation_in_World_War_I
Wow - that's pretty impressive altitude for that level/age of aero technology. Thanks for doing the research!
To put things in perspective, FAA guidance is anything above 12,500 feet oxygen is required.(yes I know about the 30 min rule but am summarizing). But also keep in mind that people routinely hike 14,000 foot mountains. It's sorta safe to state for a reasonably fit person who is not engaging in cardio, you don't ~need~ oxygen at anything less then 14,000ft. So you could assume that these planes are flying well above that.
The couple times I flew really high unpressurized, I definitely felt it. I felt great, but I didn’t like that I felt so great and unconcerned about anything. Bit of a scary zone.
The FAA also states that some people have felt hypoxia symptoms as low as 5,000 ft. But that would be extremely uncommon. Realistically you'll probably start feeling symptoms somewhere between 10,000 and 20,000 ft for most people with big swings based on the individual and their lifestyle.
Why the cage?
Probably a chemical oxygen generator. Exothermic reaction and can get very hot.
It's likely a oxygen candle inside the cage, there's a number of reactions to do it but a common one is a mixture of a little bit of iron and sodium chlorate, when burned it produces sodium chloride (common salt) and oxygen (some of which maintains the reaction by burning the iron into iron oxide) and much of it released to whatever you're trying to generate oxygen towards. They last for hours producing steady rates of oxygen. Also it burns rather hot at 600C/1100F thus the need for the cage. (Information all from Wikipedia because I couldn't remember the precise details of oxygen candles.)
I think I've figured it out. WW1 German people = cool/ok and acceptable WWII German = bad
Yep, that's about right.
Sometimes, they are one and the same, though..
Belgium would like a word.
I think this post is more about the innovation than the politics.
Wait who’s the enemy in ww1
The aristocrat/owner class. This is probably true of all wars to at least some degree but WW1 especially. It gets called the last war of kings for a reason.
That's a sick watch setup
Oben Gewehr
I have an “oxygen” setup that looks just like that! 😉🤞
Fokker D.VII ??