TN-Steve
Contributor
Hey Gang,
Have a question, this seem like a good idea to me, which always makes me want to triple check it.
I need to determine my SAC rate so I can start to do effective dive planning. Right now it's more in the "We all jump into the quarry, swim around a while, and when somebody gets low, we surface". Since I'd rather have a better idea of how long, how deep, how much than that, I need to get some good numbers.
I was thinking (and here is where it gets dangerous), I've got a perfectly good cycle trainer at the house, a HRM that I'm very familiar with, and the ability to get my heart rate up to the approximate level I feel when diving (don't wear a HRM during dives, but I've done enough long distance cycling and touring to have a good feel for how much I'm exerting myself. )
It seems like by getting warmed up on the bike, putting my reg in and doing a measured time / psi ride I can very precisely (at least precise enough) determine my basic SAC. Once I've got that, everything else comes easy.
I was also thinking that I could then increase my work load, see how that affects it, and also see what happens when I'm working hard enough to start to over-breath the regulator.
I've read everything I could find on gas management for rec. divers, NW_Diver and the posts at Spherical Chicken were tremendously helpful.
What, if anything, am I missing. When I'm diving with the club, it's a lot of up/down, not holding a steady depth, and I really don't want to ask somebody to watch me swim back and forth at 33 feet for 15 minutes.
Thanks in Advance.
Have a question, this seem like a good idea to me, which always makes me want to triple check it.
I need to determine my SAC rate so I can start to do effective dive planning. Right now it's more in the "We all jump into the quarry, swim around a while, and when somebody gets low, we surface". Since I'd rather have a better idea of how long, how deep, how much than that, I need to get some good numbers.
I was thinking (and here is where it gets dangerous), I've got a perfectly good cycle trainer at the house, a HRM that I'm very familiar with, and the ability to get my heart rate up to the approximate level I feel when diving (don't wear a HRM during dives, but I've done enough long distance cycling and touring to have a good feel for how much I'm exerting myself. )
It seems like by getting warmed up on the bike, putting my reg in and doing a measured time / psi ride I can very precisely (at least precise enough) determine my basic SAC. Once I've got that, everything else comes easy.
I was also thinking that I could then increase my work load, see how that affects it, and also see what happens when I'm working hard enough to start to over-breath the regulator.
I've read everything I could find on gas management for rec. divers, NW_Diver and the posts at Spherical Chicken were tremendously helpful.
What, if anything, am I missing. When I'm diving with the club, it's a lot of up/down, not holding a steady depth, and I really don't want to ask somebody to watch me swim back and forth at 33 feet for 15 minutes.
Thanks in Advance.