What is average surface air consumption?

[amascuba]

5'8''
155 lbs
male
24 years
drysuit - cold to moderate waters
3mm full suit - moderate to warm waters

.29 on really relaxing dives - .58 if pretty stressed or swimming against a strong current.

My average SAC rate runs around .30 - .38. I typically plan on it being at .60 to be conservative.

 

[jham2081]

I've only calculated it on a few dives... and I'm an air hog with it being right about 1

 

[Rick Murchison]

Well, lesseee here....
Looking at my log, I see recent rates ranging from 0.33 CFM up to 1.61 CFM.
I'm sure I could easily go higher under stress or a workload; I doubt I could get much lower, even asleep
For planning purposes I use 0.55 for the bottom and 0.45 for deco.
Rick
Oh, y'all are using body size & such...
Male
Old (But not as old as Smedley)
Fat
Ugly

 

[H2Andy]

Oh, y'all are using body size & such...
Male
Old
Fat
Ugly

my long lost twin!

hermano!

 

[lamont]

I wouldn't even be brave enough to try to calculate the SAC on my first dozen dives, even if I had the data! There's a very definite learning curve in terms of relaxation and efficiency underwater, and it's real steep at the beginning.

First time I did mine was back around dive #5 and it was 1.1 -- that was in 50F water, newbie in a drysuit, viz totally blown out to less than a foot by the plankton blooms and the OW students. And that was my average SAC over the entire dive.

 

[Divin'Papaw]

I wouldn't even be brave enough to try to calculate the SAC on my first dozen dives, even if I had the data! There's a very definite learning curve in terms of relaxation and efficiency underwater, and it's real steep at the beginning.

You're just trying to make me feel better.... :blush:

 

[JdLag1]

Male,48,5'8",175lbs
.47-.61

 

[ZzzKing]

Male, 45 yo, 5'-10", 180#

.30 in 3 mil WS

 

[ZzzKing]

But now I have my own boat it should be dropping again shortly

As should you bank account balance...

 

[Storm]

As should you bank account balance...

You know what they say about boats....they're a large whole in the ocean into which you get to pur all your money.