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Technical Spearfishing Technical Scuba diving is generally defined as going deeper than 130 feet. You must have the proper training for this extreme aspect of spearfishing. |
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08-19-2008, 12:04 PM | #61 |
Spearo in training
Join Date: Jul 2007
Location: Sebring, FL
Age: 54
Posts: 201
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Re: How deep on air?
Hey Dago,
If the bottom number is RT why 2/3 min over? Willem |
08-19-2008, 12:08 PM | #62 |
Wreck Diver
Join Date: Sep 2003
Location: north port fl.
Age: 58
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Re: How deep on air?
Rounding error, I have the software set to round up if not whole minutes.
Dago.
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08-19-2008, 12:28 PM | #63 |
.
Join Date: Oct 2003
Location: Palm Bch County
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Re: How deep on air?
Are you assuming that spearfisherman are generally coming back up an anchor line with this comment? I would think that spearfisherman are the most likely to be pulled off a wreck and have to do a drifting deco.
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08-19-2008, 12:30 PM | #64 |
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Re: How deep on air?
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08-19-2008, 12:37 PM | #65 | |
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Re: How deep on air?
Quote:
I was "assuming" that you would hang a bottle if conditions permitted. Also, remember that the hanging bottle is not part of the calculated gas plan, and is only there as a safety. So if the diver follows his run time, he should not need it. Now, if there is a strong current, and hanging the bottle is not possible, you should either take it with you, or shorten your bottom time to give yourself the extra needed cushion in case something happens. Sorry, I should have been more specific in my prior explanation, thank you for bringing it up. Safe Diving,
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08-19-2008, 12:58 PM | #66 | |
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Re: How deep on air?
Quote:
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08-19-2008, 01:21 PM | #67 | |
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Re: How deep on air?
Quote:
This is a great example of the different facets between spearfishing and Tech diving. It's always nice to learn something new
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08-19-2008, 01:29 PM | #68 | |
Spearo in training
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Location: Sebring, FL
Age: 54
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Re: How deep on air?
Quote:
Later, Willem |
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08-19-2008, 01:37 PM | #69 | |
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Re: How deep on air?
Quote:
My thought: Dive with your bottom mix and a pony. Same mix in both. Come up to your deco stop and proceed to do your dec. Boat pulls up and you do a gas switch on the computer to the deco mix. Result: shorter dec. Let's say the boat does not show up: You continue to deco with the gas you have. A little longer deco but all is well. Advantage of this setup: 1-No carrying deco bottles. 2-Fill one single large tank and use it many times. Lets say an 80cf alluminum tank with 80-100% mix. Same price as filling a small tank. You would need a bunch of small tanks for a day of diving. With one 80cf, you could probably deco six to eight dives. Just put a reg on it with long hoses and a few regs. Like I said before, I don't know much, but am allways trying to improve what I do and learn from others that know more than me! |
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08-19-2008, 01:40 PM | #70 | |
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Re: How deep on air?
Quote:
They are also streamlined, no buckles, and line does not tangle on them. |
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08-19-2008, 01:58 PM | #71 |
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Re: How deep on air?
I AM NOT!!! .. Ok, maybe just a little...
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Cheers Mike Edmonston Oxycheq Experimental Dive Team Test Pilot NAUI Technical Instructor Technical Scuba Training Center, FL. www.floridatechdive.com ***Ask me about Great Deals on Dive Gear and Classes for Spearboard Forum members *** |
07-30-2009, 04:20 PM | #72 |
Capt. Bob Roemer
Join Date: Feb 2008
Location: Trenton, Florida
Posts: 556
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Re: How deep on air?
Well, this thread went south real fast. There was some good advice somewhere back up there, though.
You all might remember when Divers Supply lost two instructors and one student on a deep dive out of palm Beach, about 10-12 yrs. back. The bodies were never found. The surviving diver said that they were in over 200 fsw., four tanks on each diver. The bladder blew out in one divers BCD and the two instructors tried to save him. The last they were seen, they going down together. The instructors never left his side. One of the instructors was ex-navy seal. Tragic loss but it predicated the importance of training, equipment AND buddies.
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07-31-2009, 09:28 AM | #73 | |
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Re: How deep on air?
Quote:
If your two well trained buddies die with you, was that really the lesson? |
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07-31-2009, 09:49 AM | #74 | |
.
Join Date: Oct 2003
Location: Palm Bch County
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Re: How deep on air?
Quote:
I never read that the BC of the student blew out, just that the loan survivor of the accident reported that the student was "having trouble" controlling his bouyancy during the entire technical dive which was a drift dive at a depth of 250 to 300 as I recall. I'm quite sure they were using trimix not air.
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07-31-2009, 01:25 PM | #75 |
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Re: How deep on air?
rarely do i look at this part of the board but it was very entertaining lol.....
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