I am an Advanced Open Water Diver. I plan to do three dives. The first dive is a 25-metre/80-foot dive for 22 minutes followed by a 52-minute surface interval. The second dive is to 20 metres/70 feet for 27 minutes followed by a surface interval of 62 minutes. My third dive is to 18 metres/60 feet. What would be my maximum allowable bottom time for this third dive?

Question

Dario Mosley

Physics

10 April, 00:34

I am an Advanced Open Water Diver. I plan to do three dives. The first dive is a 25-metre/80-foot dive for 22 minutes followed by a 52-minute surface interval. The second dive is to 20 metres/70 feet for 27 minutes followed by a surface interval of 62 minutes. My third dive is to 18 metres/60 feet. What would be my maximum allowable bottom time for this third dive?

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Answers (1)

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Grant Schmidt · Answer 1

34 minutes

Explanation:

If we use the general Dive Planning mode on the eRDPML and insert the option "No" for the Multilevel Dive. Furthermore, insert the option "Yes" for the First Dive. If we use 25m/80ft and click the enter button when the NDL appears. Also put 22 minutes for the criteria ABT. For the surface interval (i. e. 52 mins), E/D is the new pressure group.

In addition, use the 20m/70ft as the next depth and put 27 minutes for the criteria ABT. With the surface interval of 62 mins and G as the new pressure group. Use the 18m/60ft as the final depth, the final ABT will be approximately 34 mins.