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I'm new to the 'board. Hi. My wife and I are one dive away from our open water c-card. Having fun in our dry suits here in the Puget Sound area.
A question has come up concerning the vastly different no-fly times our computers are showing us. I'm diving an Atomic Cobalt, she's using a Suunto Viper Air. Our no-fly times are exactly 12-hours different (Cobalt says 15 hours, Viper Air says 3).
Now, we found in the Viper Air manual that no-fly times will always be the greater of 12 hours or the desaturation time and that if the desaturation time is less than 70 minutes, no no-fly time is shown. Does that mean that she needs to add 12 hours to any no-fly time displayed?! That's nuts, if that's the case!
Anyway, I'm guessing others have figured this out. We're having a lot of fun; just want to clear up this confusion between our two computers.
No-fly times border on the arbitrary. You do not have to add 12 hours to the Vyper's no-fly time. You have interpreted the user manual correctly: it counts down from the greater of desaturation time or 12 hours. It sounds like Atomic is being significantly more conservative, that's all.
On a large pile of smokin' A'a, the most isolated population center on the face of the earth. 2,175 miles to Alaska, 2,390 miles to California; 3,850 miles to Japan; 4,900 miles to China; 5,280 miles to the Philippines.
There are those who feel that there should be a 12 hr (of more) surface interval before flying, no matter what. There are those who are comfortable with the model computation for an ascent to 8,000 feet ... I am of the latter school, but I often hedge my bet with pure oxygen washout.
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