911_abuser
Guest
Speaking in hypotheticals, if dive X has a limit of Y do i have to be on the surface by Y or do I only need to start my ascent at Y? Also does Y include time needed for a safety stop.
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
911_abuser:Speaking in hypotheticals, if dive X has a limit of Y do i have to be on the surface by Y or do I only need to start my ascent at Y? Also does Y include time needed for a safety stop.
Provided that the ascent rate is within reason. Obviously if you ascent at a rate of, say, 1 ft per minute from 90 feet.... that's going to effect your bottom time. e.g. if you start ascending from 90 feet at 23 minutes, at 1 ft/min you'll be at 80 at 33; where the NDL for 80 w/ padi tables is, I believe, 30 minutes.Walter:Bottom time is from the time you begin your descent until you begin an uninterrupted ascent (safety stops are not considered an interruption of your ascent). Ascent time and safety stops are not part of your bottom time.