Ken abucs
Contributor
I have the exact same situation, 1 PST 100 & 1 Faber 100. I add or subtract 6lbs based on which tank I'm using. I also labled each tank with the amount of weight I need for a salt water dive, so I don't get it wrong.
Steel Tanks: Math!
- Thread starter CompuDude
- Start date
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OP
Good point. Yes, real world results don't match up with theory every time. I will be sure to experiment before attempting any advanced dives.CoolTech:
That said, as I mentioned, looks like it's not a Faber after all, but an older, painted PST. Didn't know there was such a thing... unless the paint job was end user-applied.
lamont
Contributor
CompuDude:Good point. Yes, real world results don't match up with theory every time. I will be sure to experiment before attempting any advanced dives.
That said, as I mentioned, looks like it's not a Faber after all, but an older, painted PST. Didn't know there was such a thing... unless the paint job was end user-applied.
heh, if that's true its a really good reason to test your weighting on shallow dives -- you might have done a missile to the surface after taking 6# off....
OP
The real question is: do I put air in my BC or not while doing the test.lamont:
bradshsi
Guest
CoolTech:
I don't dispute your observation, but your conclusion seems curious to me.
Tank buoyancy is pretty standard engineering. Assuming the manufacturers quoted values are correct, I would not expect large departures from the norm (only small ones due to manufacturing tolerances).
Which leads to the conclusion that either Faber's values are off for the 133 or you changed something else at the same time you changed tanks.
In my limited experience I have found no weight surprises when changing tanks.
lamont
Contributor
CompuDude:The real question is: do I put air in my BC or not while doing the test.
we could ressurect the old thread about if a diver can clear the surface on a polaris missile shot... =)
BHB ScubaTroll
Contributor
bradshsi:
Well, every dive I made prior to the new tanks:
Were made on S80. Also understand, I dive south of the Carolina's in both fresh and salt water, and until the water dips below 70 F, I do not need a wetsuit.
There are some issues that are not associated with "standard" divers in this environment, but NO, I did not change anything from MY standard dive profile (although some of my buddies might think my style is somewhat unstandard... lol)
On my last dive (with 2 lbs of weight in my BC), I was on the bottom, inflating my BC for bouyancy and my buddy was 30-40 ft. above me... I did not like that fact, but it was a fact)
Packhorse
Contributor
CompuDude:
Woops. My bad. I was at 100meters and narced when I answered the question. sorry.
OP
I have GOT to find out what kind computer you use!Packhorse:
Hmm... anyone know what kind of range an 802.11g router's signal will give you underwater?
lamont
Contributor
CompuDude:I have GOT to find out what kind computer you use!
Hmm... anyone know what kind of range an 802.11g router's signal will give you underwater?
blocked by water, probably inches or less...
you could always do "surface supplied 802.11g" though and run a tether...
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