Average Gas Consumption

[Sheldon J Plankton]

What computer do you use that shows sac?

@tursiops is correct, Shearwater have that option in PSI/Min, so if you dive the same tanks it gives a good indication of air what you're using, and a reminder to relax and slow down sometimes.

View attachment 750170

I do a similar thing on mine. For those who aren't familar with the Terric, the 3rd row down is a scrolling series of screens that you can navigate through with left and right button presses. It's customizable and you can also split some of the spaces to display two values. So I split one to show GTR and SAC at the same time. My centre one is tank pressure (showing COMS because the tank valve is off).

 

[Belzelbub]

There was an example of the Subsurface RMV graphing in post #354 Average Gas Consumption This is presented by year with median, surrounding 2nd and 3rd quartiles, and the the full range. It looks like it can be displayed in different ways. Could you post an example of what yours looks like?

Here’s what I pulled quickly from Subsurface Mobile. Depending on the options you select you can display different types of graphs.

My range is all over the place. Most of my dives involved some type of work (Spearfishing, aquarium cleaning, entertaining guests with bubble gun, etc. I believe that high spot this year involved a short dive retrieving a heavy anchor.

 

[Blackcrusader]

That is exactly why I find it useful.
Other displays relate to gas time remaining, etc.

I get similar information from my cressi console in that range lets me know current dive time to 50 bar from current depth. Add that to time already dived.

 

[scubadada]

Hi @Blackcrusader

Your digital gauge gives you gas time remaining. The discussion was using SAC as an estimate of current exertion.

Isn't your computer a Shearwater? Perhaps it is not AI, so that you would not have SAC.

 

[Belzelbub]

Hi @Blackcrusader

Your digital gauge gives you gas time remaining. The discussion was using SAC as an estimate of current exertion.

Isn't your computer a Shearwater? Perhaps it is not AI, so that you would not have SAC.

If I remember correctly, it is a Shearwater, and is AI, but not used in AI mode. No transmitter.

 

[scubadada]

Wow, another 1000 views, now more than 34,000, and another 18 votes in the poll

The median, mode, and weighted average all remain 0.5-0.59 cu ft/min or 14.2-16.7 liters/min

If you have not voted in the poll, please do so. If your average RMV has changed, change your vote.

 

[scrane]

Is it possible to enter a specific tank size for all dives in SubSurface without entering for each dive individually?

 

[inquis]

Settings has a default tank.

 

[scubadada]

This thread was posted nearly 6 1/2 years ago and now has over 35,000 views and 596 votes in the poll

The median, mode, and weighted average are all 0.5-0.59 cu ft/min or 14.2-16.7 liters/min

If you have not voted in the poll, please consider doing so. If your average RMV has changed, please change your vote.

 

[arew+4]

This thread was posted nearly 6 1/2 years ago and now has over 35,000 views and 596 votes in the poll

View attachment 758960

The median, mode, and weighted average are all 0.5-0.59 cu ft/min or 14.2-16.7 liters/min

If you have not voted in the poll, please consider doing so. If your average RMV has changed, please change your vote.

Is there any way to track the changes, it would be interesting to see the correlation between experience and RMV develop over time in a large population.