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billvon 3,111
>I have a feeling Beerlight is familiar with HALO or console O2 systems.
Oh, sorry.
Story from Monday - I was listening to a HALO guy talk about the system. At one point he said " . . . and then you'll switch from the 100% O2 aircraft system to your own system which is 22% oxygen."
"22%?" I asked. "Isn't that about the same mix as normal air? 22% oxygen and the rest nitrogen?"
"Yep, that's the point," he said.
"I mean, isn't the air in the plane 22% oxygen too? The mixture stays pretty constant up to 30,000 feet, doesn't it?"
"No! There's almost no oxygen up there!"
"Well, yeah, but isn't that because there's less of _everything_ up there?"
"Nope, there's just less oxygen."
"OK," I said. I picked up the bailout bottle. "But this has 100% oxygen, not compressed air in it, right?"
"Right."
"OK."
I think we got confused on the difference between partial pressure of oxygen in the mix and percentage of oxygen total. But for a few seconds there I thought he was telling me they were putting people out on compressed air.
Oh, sorry.
Story from Monday - I was listening to a HALO guy talk about the system. At one point he said " . . . and then you'll switch from the 100% O2 aircraft system to your own system which is 22% oxygen."
"22%?" I asked. "Isn't that about the same mix as normal air? 22% oxygen and the rest nitrogen?"
"Yep, that's the point," he said.
"I mean, isn't the air in the plane 22% oxygen too? The mixture stays pretty constant up to 30,000 feet, doesn't it?"
"No! There's almost no oxygen up there!"
"Well, yeah, but isn't that because there's less of _everything_ up there?"
"Nope, there's just less oxygen."
"OK," I said. I picked up the bailout bottle. "But this has 100% oxygen, not compressed air in it, right?"
"Right."
"OK."
I think we got confused on the difference between partial pressure of oxygen in the mix and percentage of oxygen total. But for a few seconds there I thought he was telling me they were putting people out on compressed air.
Quote
"No! There's almost no oxygen up there!"
You have the same % of O2 at 30,000 feet as you do at sea level. It just spread out more.

I don't think I would do "high altitude" with this guy running the show.

Sparky
My idea of a fair fight is clubbing baby seals
$700? That is for an O-ring, right?QuoteThe HALO type are 100% demand closed systems that cost on the order of $700 a station.

The 8 station console is around $13,000 and it is about $3,700 per complete unit for each person with a single 80cu in. bottle.
Time and pressure will always show you who a person really is!
Sparky, you always got my back!
Yep, I'm "fairly" familiar with the HALO systems.. It's just nice seeing how familiar others are!
Thanks amigo...
Buck
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