Mailing List Archive Mailing List Archive
At 07:43 AM 12/24/99 -0500, kirvine@sa*.ne* wrote: >5) slow final ascent - the last move up to the surface is one of the >most critical. No matter how long you sit on a stop with the window wide >open, there will still be gas that will not be displaced by this method. >When you increase the gradient by trying to surface, the last of the gas >comes out rapidly and does so in bubble form. You must do a slow ascent >to reduce the risk of this, and for long dive it is one foot per minute >to the surface, for this dive it is more like 2.5 - 3 fpm. I have seen evidence of this in a dive buddy. We made a slow but direct accent from 20' after a thorough deco and he suffered the consequences. I have since adopted the practice of adding 3min safety stops at 15', 10' & 5' with very good results. Of course, we always do surface deco appropriate for the dive. Are you going to back gas for your final accent? Charlie -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]