strongbow
Guest
I am thinking about getting a steel 130 tank. I have a chute 3 Oceanic bcd and it is rated at 44lbs lift.Would this be enough lift or should i consider a bigger wing/bcd?
Proper amount of lift?
- Thread starter strongbow
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JeffG
Contributor
considering that I use a 38lb wing for two 130's...I would say you might be ok.strongbow:
JeffG:
Assuming he's diving dry?
OP
strongbow
Guest
ok thanks for the input, after diving with alum.80s I just wanted to make sure I would not become a dirt dart....
alpaj
Contributor
Hey Jeff G when you are diving double 130's, are you starting off negative? And 32 pounds is that enough to float two heavy steels, a bp, and possibly a light? Or are you not worried about having your system float on its own? Thanks in advance.
Not to high-jack your thread strongbow, but 44 lbs should be more then enough if you are weighted properly. Even with a wetsuit. So you'll be able to start of neutrally right so all your BC needs to do is offset the gas lost and wetsuit compression at depth. In anycase if you start off neutrally plus 7 lbs for air (like you are supposed to) then you will have shiat loads of lift with 44 lbs. THICK wet suit compresses to loose 26 lbs at the VERY, most plus 7-8 lbs of air at the beginning of the dive. So that is 34 lbs in extreme compression and full tank of case so yea you'll be more then fine.
Not to high-jack your thread strongbow, but 44 lbs should be more then enough if you are weighted properly. Even with a wetsuit. So you'll be able to start of neutrally right so all your BC needs to do is offset the gas lost and wetsuit compression at depth. In anycase if you start off neutrally plus 7 lbs for air (like you are supposed to) then you will have shiat loads of lift with 44 lbs. THICK wet suit compresses to loose 26 lbs at the VERY, most plus 7-8 lbs of air at the beginning of the dive. So that is 34 lbs in extreme compression and full tank of case so yea you'll be more then fine.
OP
strongbow
Guest
great advise, thanks
JeffG
Contributor
No. Single tank...the tank is ~10 lbs neg at the start of a dive. You don't need a lot of lift.dherbman:
But with doubles....Only a munch head would dive that rig with a wetsuit.
JeffG
Contributor
You start off "way" negative. In fresh water....38lbs of lift is barely enough to float the tanks/regs/manifold and the light on its own. (Thats with a AL BP and a trim weight). Salt water, there is no problem.alpaj:
alpaj
Contributor
Oh yea double 130's and wetsuit with 44 lbs is way bad. I was assuming he was diving a single 130 in which case he'd still be able to start of neutral. So he wont have any problems with 44 lbs of lift. Starting off neutral should not be a problem unless you got mondo lights reels (lots of little negative stuff) etc. Though my concern is that you will have very little weight on your belt and should something go wrong with your lift you will be stuck with a heavy non-ditchable tank to swim up. So what are you needing 130 ft^3 of air for? Will you use all of it? Have you given some thought as to what would happen if **** hit the fan and you lost lift? In conclusion I think the wing will give you plenty of lift for the purposes but you should give thought to some of the other things that come along with using the tank. Would I dive a bottom-less pit with this rig and a wetsuit? Hmm maybe not. Would I make sure that I had a good buddy who knew my rig? For sure.
alpaj
Contributor
Oh yea and I was also assuming that your exposure was giving you some decent lift. ie. You aren't diving this rig with in shorts. It's cold around Vancouver waters so I just allways assume that people are wearing thick exposure protection. 
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