Air Consumption Issues

[NYCNaiad]

concept here: i have plenty to do with my normal job. it's something i'd write if people were interested and wanted it. if not, there's not a lot of reason to do it. kickstarter seems an efficient way to sort that out.

jfyi: Kickstarter tends to be very time consuming. Most of the projects that succeed are the ones who have a team of people spending at least an hour or two a day working on their campaign. And according to the current data, the project doesn't succeed most of the time. (I work in tech & have studied as well as managed campaigns.)

So you couldn't use Kickstarter to really judge true interest unless you spent a lot of time marketing/managing the campaign. Time likely better spent writing & publishing the book yourself as it's not that expensive to self publish. But it is a very tough industry with most authors making little money. (I also run an online book club.)

 

[Beau640]

Reminds me of this...very vague

 

[Bubblesong]

If you write a truly awesome, entertaining and thoroughly detailed book on SCUBA fine tuning SAC rates, you could find fame instead of fortune. I am thinking of the example Moosewood Cook book, self published spiral bound, and not exactly top secret recipes, yet people love that book. Just a thought.

 

[CaveDiverJD]

jfyi: Kickstarter tends to be very time consuming. Most of the projects that succeed are the ones who have a team of people spending at least an hour or two a day working on their campaign. And according to the current data, the project doesn't succeed most of the time. (I work in tech & have studied as well as managed campaigns.)

So you couldn't use Kickstarter to really judge true interest unless you spent a lot of time marketing/managing the campaign. Time likely better spent writing & publishing the book yourself as it's not that expensive to self publish. But it is a very tough industry with most authors making little money. (I also run an online book club.)

Thanks for the advice NYC. That's why I was seeking some input. I have some doubts about it of course but I thought I'd see what people thought.

 

[TMHeimer]

I completed my Advanced Clarinet book 10 years ago and it is yet to be published. No luck with traditional music publishers to date. Self publishing rock bottom costs are a bit under $1,000 (U.S., I think). Then some of the marketing you must do yourself -- in my case, getting it into music stores where people will actually buy it (as opposed to Barnes & Noble, etc.). As well, there probably were more variations of my kind of book on the market many decades ago, as I would assume would be the same for your subject. Good luck.

 

[BradMM]

IMHO, some people must simply just have high SAC rates. Like everything else in life, we're all individuals.

I was OW certified in 1991, I'm currently DM, and am completely comfortable in the water. I'm not new to diving.

During lunch, I swim a mile (normally) three times a week and the other days try to do weight training. I am, however, 63 y/o. Tonight, while watching TV, 0.67 for 20 min and 0.64 for 15 min. I'm always a gas hog when I dive regardless of the specifics of the dive.

 

[BDSC]

And FWIW, I think that anxiety is probably the greatest factor affecting SAC.

BINGO! You are so right. The anxiety factor has way more to do with your SAC rate than streamlining, drag, etc. I think that once a person can get into that zen state you describe, they will see a noticeable or measureable improvement in their SAC. You may then be able to find even more improvements with a few tweaks to your streamlining or equipment setup but that will be minimal compared to your mental state when diving.

 

[TMHeimer]

BINGO! You are so right. The anxiety factor has way more to do with your SAC rate than streamlining, drag, etc. I think that once a person can get into that zen state you describe, they will see a noticeable or measureable improvement in their SAC. You may then be able to find even more improvements with a few tweaks to your streamlining or equipment setup but that will be minimal compared to your mental state when diving.

By anxiety, I assume you guys mean you get anxious and breathe faster. As mentioned, I notice a lot more air usage when I purposely go like Hell. I also notice that after suiting up, struggling at times over a rocky shore, and donning my fins in the water, that once the reg is in my mouth entering the water I seem to lose quite a few PSI. I am not anxious at all, just breathing fast.

 

[BradMM]

I dive with a computer now but would still like to know what the dive tables are based on. I'm sure it's average people but what is average? 35 y/o, 5'8" male, normal weight?

I'm taller than average so my body is simply bigger and my lungs would be proportionate to my body. If my SAC rate is higher, then I'll be taking in more N which would cause the tables to be less useful for me than someone who fits the profile of "average." I'm not concerned, more of an academic interest.

Another reason to use a computer!

 

[scubadada]

@BradMM

Nitrogen uptake has nothing to do with your body size, lung size, or breathing rate. Dive tables and dive computers apply to everyone. You're a divemaster?