need Nitrox 32 info...

[rje634]

The big nitrox benefit as far as bottom time is concerned is the 70 FSW and less range.
Here are the maximum bottom times using EAN32:
45 ft - 220 min
50 ft - 155 min
55 ft - 110 min
60 ft - 90 min
70 ft - 60 min
80 ft - 45 min
For EAN36:
50 ft - 220 min
55 ft - 155 min
60 ft - 115 min
65 ft - 90 min
70 ft - 75 min
80 ft - 55 min

These times should give you an idea of the types of bottom times you can expect using EANx. If you dive with a computer your bottom time is greatly increased due to the credit for the shallower portions of your dives, unless your dives aren't multi-level.

 

[WaterDawg]

Jonnythan, didnt you have something on your web site??

 

[Diesel298]

its not all just about bottom time.
there are other atvantages to nitrox
shorter surface intervals.
and less fatuige at the end of the dive and day
so even if you dont extend bottom time at 90 feet because of gas consumption
nitrox will still have advantages

 

[jonnythan]

I have *something*.. whether it pleases everyone is a matter of contention, but here it is:

http://www.jonnythan.com/rockbottom.html

 

[nova]

That's exactly what I'm asking....

How many PSI ?

There is a basic mistake in the planning of a dive if you calculate by PSI for safety. a better way to plan dives is to use your SAC rate times depth (ATA)times time at depth, this will give you the total gas of a given dive , then you times the whole gas needed by 1.5. By proper planning you'll know if your tank has enough gas to do the dive and if you have enough gas left after the planned dive to rescue a buddy along the way. Bottom line, you'll never look at your SPG during a rescue, because your planning was complete before your feet got wet.


and before the regulars on SB start flaming me answer the following questions:
1. do you feel it is an exceptable practice to dive to the limits of the NDL tables without a bacic deco contingency plan? including gas?
2. do you feel that gas left in the tank equals time left on the bottom?
3. do you understand all three sac rates (working,swimming and resting)
4. do you understand that time turns a dive not gas.(with proper planning)
5.do you beleave that the more training a diver gets , the safer that diver is


so maybe taking the nitrox course isn't a bad idea , even if you never go into tech diving

 

[outlaws]

There is a basic mistake in the planning of a dive if you calculate by PSI for safety. a better way to plan dives is to use your SAC rate times depth (ATA)times time at depth, this will give you the total gas of a given dive , then you times the whole gas needed by 1.5. By proper planning you'll know if your tank has enough gas to do the dive and if you have enough gas left after the planned dive to rescue a buddy along the way. Bottom line, you'll never look at your SPG during a rescue, because your planning was complete before your feet got wet.


and before the regulars on SB start flaming me answer the following questions:
1. do you feel it is an exceptable practice to dive to the limits of the NDL tables without a bacic deco contingency plan? including gas?
2. do you feel that gas left in the tank equals time left on the bottom?
3. do you understand all three sac rates (working,swimming and resting)
4. do you understand that time turns a dive not gas.(with proper planning)
5.do you beleave that the more training a diver gets , the safer that diver is


so maybe taking the nitrox course isn't a bad idea , even if you never go into tech diving

Well Said!

Dive Safe, Dive Often
Butch

 

[StSomewhere]

The advantages to nitrox aren't on your first dive, its in your repetitive dives. If you are doing 2, 3, or 4 dives in a day at recreational depths, nitrox has huge advantages in longer bottom times and shorter surface intervals.

 

[jonnythan]

4. do you understand that time turns a dive not gas.(with proper planning)

Explain this please? Are you saying this applies in all instances?

 

[in_cavediver]

Explain this please? Are you saying this applies in all instances?

In short, yes. Excluding contingencies situations. (More exertion, more current, equipment failures etc).

A properly planned dive will have ample gas to complete the planned dive time. Contingency planning is where you account for the unknown's that may lead you to increase you air consumption from your planned dive. (Hence, then turning on gas not time)

Mike

 

[chrisch]

Sorry about pi3 guys! I forgot to change my french units! LOL

Les unites francais etre litres..................

Chris