365 Kts / 420 mph in an SR22

**** of a tailwind. wonder what the westbound speed will be.
 
crazy stupid.....to do that in an unpressurized aircraft at 25,000 feet.:yikes:
 
Looks like winds aloft at KCRW , which seems not far from where he flew over is showing 260 @ 137 Kts at 24,000'.
 
Now that's fast,have to love a tail wind.
 
Unpressurized cirrus at FL250, sounds like....uh...fun....
 
SkyHog said:
Why does ground speed matter in this case?
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I believe he was implying it's crazy due to the risk of O2 problems, not due to the speed.

I believe the mooney M20K is/was certified to FL280. Imagine doing that unpressurized.
 
JasonM said:
What is so dangerous about him flying at 25,000' and not being pressurized? As long as he is on O2 and monitoring it, I don't see what the big deal is.
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Time of useful consciousness is pretty darn short if there is a problem with the O2. I think Avweb has some articles from Deakin about taking his Bo up high to do non-stops from California to Texas. He mentions having back-up O2.
 
Clark1961 said:
Time of useful consciousness is pretty darn short if there is a problem with the O2. I think Avweb has some articles from Deakin about taking his Bo up high to do non-stops from California to Texas. He mentions having back-up O2.
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I understand the consequences of Oxygen loss, but even a pressurized aircraft can and has had a loss of pressure at altitude. I'm just saying that if the guy is monitoring his Oxygen levels, other than the risk of him running out of Oxygen, what is so dangerous?

I think the Cirrus also has a hypoxia check and auto descend.
 
JasonM said:
I understand the consequences of Oxygen loss, but even a pressurized aircraft can and has had a loss of pressure at altitude. I'm just saying that if the guy is monitoring his Oxygen levels, other than the risk of him running out of Oxygen, what is so dangerous?

I think the Cirrus also has a hypoxia check and auto descend.
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What is so dangerous is that the pilot can be unconscious before they can complete a descent to a safer altitude. It's not just running out of O2, it could be a pinched or kinked hose or even a disconnected hose. The regulator could fail...you get my drift here.

Is any of it headline scary dangerous? probably not but pilots have died from O2 problems and at 25,000 the pilot has more exposure to those problems than us low-level slugs.
 
my comment was from a risk/safety perspective.....It just isn't worth the risk to fly that high IMHO.


Should there be an issue with the O2 system or delivery....things happen very fast at 25,000 feet. :rolleyes2:
 
My record, 202 mph in an Archer.............................
Don't laugh!:D
 
I put on O2 on anything above 8-10k if I am going to be there a while. The older you get the lower the threshold.
 
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