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| author |  Jan Mulder <jlmulder@xs4all.nl> | 2017-03-07 11:04:23 +0100 |
|---|---|---|
| committer |  Dirk Hohndel <dirk@hohndel.org> | 2017-03-17 09:36:52 -0700 |
| commit | ad62d8a7317ba79536a6081bf71164008c79754f (patch) | |
| tree | 4c41f5c275641df949028c0adbf32d64c81a42ef /Documentation | |
| parent | 3c2aaaf29c3fc33e91edd04461261f1d8c8d875e (diff) | |
| download | subsurface-ad62d8a7317ba79536a6081bf71164008c79754f.tar.gz | |
user manual: TTS does not depend on SAC
This one little sentence confuses me: TTS is calculated assuming an ascent
surface air consumption (SAC) for the gas currently used.
Time to surface is a decompression + ascent time calculation only. Obviously, the diver
should plan to have suffient gas for this, but TTS is not a function of SAC. There is
the "remaining air time, RAT) some dive computers can calculate which uses TTS in
combination with SAC to assist the diver to start his ascent, but RAT != TTS.
Solution: remove the confusing sentence.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/user-manual.txt | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt index 9c5b38757..5521101b5 100644 --- a/Documentation/user-manual.txt +++ b/Documentation/user-manual.txt @@ -2224,8 +2224,7 @@ dive, given the present depth, that does not require decompression (that is, bef ascent ceiling appears). Once a diver has exceeded the NDL and decompression is required (that is, there is an ascent ceiling above the diver) then TTS gives the number of minutes required before the diver can surface. TTS includes ascent time as well as decompression -time. TTS is calculated assuming an ascent surface air consumption (SAC) for -the gas currently used. Even if the profile contains several gas +time. Even if the profile contains several gas switches, TTS at a specific moment during the dive is calculated using the current gas. TTS longer than 2 hours is not accurately calculated and Subsurface only indicates _TTS > 2h_. |