billt4sf
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Short answer: You probably could pull that off, but it's not a good idea. Wait until you have more experience.
- Bill
- Bill
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I really have no words to express how many things are wrong with this... You most likely went into mandatory deco, hence the 2 stops. Did you have any sort of gas plan? Obviously not, if one of the other divers had to share. Did you discuss your "safety stops" on the surface. Did anyone look at tables or planning mode on a dive computer to see how long you could stay at depth without going into deco as from the sounds of it you are not decompression trained. Or did you just take what the guide said as gospel?
Under what algorithm?NDL at 40m is 5 minutes.
Under what algorithm?
For both the PADI RDP and the US Navy tables, it is 10 minutes.
Hello Youseef,I'm going on a dive trip in a couple of days and one of the dives I want to do will be at 40m.
I've done 32 dives, 7 of which have been at 30m (100ft), with one at 35m. I have a PADI AOW certificate where the recommended depth is 30m. The dive will be on air.
Do you think I have enough experience to try doing dives of up to 40m? Do you think the PADI Deep specialty is worth it (I personally don't but if someone can convince me to do it...)?
Thanks!
I have my computers set to ZHL 16-C with GF 50/80, and I will confirm that on an NDL dive, you will go into deco long, long before anyone using recreational dive computers. However, their idea of deco at that point means you have to do a 1 minute stop while everyone else is doing their 3 minute safety stops. It takes a while before you accumulate the deco needed for a 3 minute stop.ZHL16-C +GF, 40/75 on Multi Deco
There's no cut and dry point where you're ready or not. Every dive is a risk - the deeper, the more risk. Experience improves your ability to manage an emergency, but depth is just one of the factors that affect it.Do you think I have enough experience to try doing dives of up to 40m? Do you think the PADI Deep specialty is worth it ?
IDT picking a bottom time at which a deco algorithm gives zero stops is a good way to estimate recreational NDL. Gradient factors are a safety margin - for, among other things, deco complications. Separate hi/lo GF particularly outright account for deep stops.ZHL16-C +GF, 40/75 on Multi Deco
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