standard 200ft dive.

[onohunter]

rjack, I'm in Hawaii. thanks.

Anyone else who doesn't have anything positive or constructive to post, don't.

certified for two years and Less than 200 dives and already a pro! whats it like diving in a class-room enviroment all the time? but hey, almost a thousand posts. I bet your myspace is blowing up!

lets pretend that I said I was interested in doing some deep dives and tri-mix. would someone please offer me some insight to thier dive profiles and some links that would benifit myself and others with simular interests.

 

[tedwhiteva]

rjack, I'm in Hawaii. thanks.

Anyone else who doesn't have anything positive or constructive to post, don't.

certified for two years and Less than 200 dives and already a pro! whats it like diving in a class-room enviroment all the time? but hey, almost a thousand posts. I bet your myspace is blowing up!

lets pretend that I said I was interested in doing some deep dives and tri-mix. would someone please offer me some insight to thier dive profiles and some links that would benifit myself and others with simular interests.

ONO - you won't get any reasonable tech diver to give you their profiles - your NOK might try to find us. However, if you are bound to DIY, look to Dixie Divers web sight in Ft Lauderdale. They give sample profiles for their deep wrecks.

But recognize we aren't trying to hijack your thread - we're trying to save your life, man! We've had too many fatalities this year already!

 

[ianr33]

I am not deco certified, I will research it.

You will need to to Advanced Nitrox/Deco Procedures before you can take Trimix.

Kinda like learning to walk before you run.

 

[Kevrumbo]

Ono Brah,

Go talk with "Scuba and Dream" (Sherman) on the Hawaii Ohana sub-Forum, and with Jo Hjelm of Island Divers Oahu when he gets back from the Philippines. . .

This was one of my Chuuk Lagoon Profiles on Air Mix (and I don't remember much about the dive because of the extreme narcosis):

(2004 Truk Odyssey Liveaboard Trip, old San Francisco Maru Dive Profile now re-calculated w/ Ratio Deco):

190' for 20min. Air mix w/ eanx50% Deco Gas
Ratio Deco 1:1, 20min. Deco Time plus 20min Set Point Adjustment equals 40min. Total Deco on 50%

190 20min.

180 to 120 ascend 30fpm

110 1min.
100 2
90 2
80 2
70 5 50% switch
60 5
50 3
40 3
30 4
20 10
10 -> or from 20' to surface @2fpm (10min.)

Need: Dbls AL80's, Stage Bottle AL80 w/ Air Mix,
Deco Bottle AL80 w/ eanx50%; and an X-Scooter.

 

[Soggy]

Here...from V-planner.

The profile is about 1% of what is required of you from a trimix class. The profile is the easy stuff.

Have fun and try not to kill yourself. Diving air to 180' in this day is nothing short of foolish. Diving air to 180' with no training is borderline attempted suicide. But, what do I know, I only have a few years of experience with a few hundred dives, many of which are actually in the 150-180 range in water below 40 degrees.

V-Planner 3.80 by Ross Hemingway,
VPM code by Erik C. Baker.

Decompression model:  VPM - B

DIVE PLAN
Surface interval = 5 day 0 hr 0 min.
Elevation = 0ft
Conservatism = + 2

Dec to	200ft		(4)	Trimix 18/45	50ft/min descent.
Level	200ft	 26:00	(30)	Trimix 18/45	1.27  ppO2,  76ft ead,  95ft end
Asc to	130ft		(32)	Trimix 18/45	-30ft/min ascent.
Stop at	130ft	  0:40	(33)	Trimix 18/45	0.89  ppO2,  43ft ead,  57ft end
Stop at	120ft	  1:00	(34)	Trimix 18/45	0.83  ppO2,  39ft ead,  51ft end
Stop at	110ft	  1:00	(35)	Trimix 18/45	0.78  ppO2,  34ft ead,  46ft end
Stop at	100ft	  2:00	(37)	Trimix 18/45	0.72  ppO2,  29ft ead,  40ft end
Stop at	90ft	  2:00	(39)	Trimix 18/45	0.67  ppO2,  25ft ead,  35ft end
Stop at	80ft	  3:00	(42)	Trimix 18/45	0.62  ppO2,  20ft ead,  29ft end
Stop at	70ft	  2:00	(44)	Nitrox 50	1.56  ppO2,  32ft ead
Stop at	60ft	  3:00	(47)	Nitrox 50	1.41  ppO2,  26ft ead
Stop at	50ft	  3:00	(50)	Nitrox 50	1.26  ppO2,  20ft ead
Stop at	40ft	  5:00	(55)	Nitrox 50	1.10  ppO2,  13ft ead
Stop at	30ft	  8:00	(63)	Nitrox 50	0.95  ppO2,  7ft ead
Stop at	20ft	  9:00	(72)	Oxygen	1.60  ppO2,  0ft ead
Stop at	10ft	 15:00	(87)	Oxygen	1.30  ppO2,  0ft ead
Surface			(87)	Oxygen	-30ft/min ascent.

Off gassing starts at  153.3ft

OTU's this dive: 113
CNS Total: 55.4%

173.3 cu ft  Trimix 18/45
29.0 cu ft  Nitrox 50
20.3 cu ft  Oxygen
222.6 cu ft  TOTAL


DIVE PLAN COMPLETE

 

[jtivat]

Here is a profile for a dive to 200' for 20 minutes.

Dec to 200ft (4) Trimix 19/40 50ft/min descent.
Level 200ft 16:00 (20) Trimix 19/40 1.31 ppO2, 87ft ead, 106ft end
Asc to 120ft (22) Trimix 19/40 -30ft/min ascent.
Stop at 120ft 0:20 (23) Trimix 19/40 0.86 ppO2, 46ft ead, 58ft end
Stop at 110ft 1:00 (24) Trimix 19/40 0.80 ppO2, 40ft ead, 52ft end
Stop at 100ft 1:00 (25) Trimix 19/40 0.75 ppO2, 35ft ead, 46ft end
Stop at 90ft 1:00 (26) Nitrox 40 1.45 ppO2, 60ft ead
Stop at 80ft 1:00 (27) Nitrox 40 1.34 ppO2, 52ft ead
Stop at 70ft 1:00 (28) Nitrox 40 1.22 ppO2, 45ft ead
Stop at 60ft 1:00 (29) Nitrox 40 1.10 ppO2, 37ft ead
Stop at 50ft 2:00 (31) Nitrox 40 0.98 ppO2, 29ft ead
Stop at 40ft 3:00 (34) Nitrox 40 0.86 ppO2, 22ft ead
Stop at 30ft 4:00 (38) Nitrox 80 1.49 ppO2, 0ft ead
Stop at 20ft 5:00 (43) Nitrox 80 1.26 ppO2, 0ft ead
Stop at 10ft 9:00 (52) Nitrox 80 1.02 ppO2, 0ft ead
Surface (52) Nitrox 80 -30ft/min ascent.

Off gassing starts at 145.6ft

OTU's this dive: 65
CNS Total: 24.1%

105.5 cu ft Trimix 19/40
14.3 cu ft Nitrox 40
16.0 cu ft Nitrox 80
135.8 cu ft TOTAL



Here are a few questions for you.

What is your sac rate?

How do you calculate the gas you will need for a dive like this?

Can you calculate your CNS clock or OTU's?

What is your deco if your Duo dies and how do you time it?

What is your deco if you loose your O2?

How long can you stay on your O2 before you need an air break?

These are just a few issues classes will address and things you really need to know to do dive in this range.

 

[Meng_Tze]

.. (and I don't remember much about the dive because of the extreme narcosis):

Here is a hint Ono....

Be careful, make sure you know what you are doing and why.

 

[onohunter]

I dive with a 30 on me, another tank hanging off the deco line at 20ft. both filled with O2. there is also a tank at 100ft just in case. I go off the padi charts jk, I use inand charts and back it up with the diverite duo computer.
​

Scared sh#tless of equipment failure so I have as many plan "b"s as possible.

thank you all for the constructive posts. If you read any of mine I state a desire to become tri-mix certified and came to this forum to find out more about it. not once did I claim to be an expert. Just that I have more time in the water than most of you who are hating.:mooner:
thanks to Kev, soggy and jtivat for sticking to the topic.
Kevrumbo, have you taken a class from Jo before?


"arguing with someone online is like competing in the special Olympics. even if you win you're still retarded"

 

[lundysd]

Onohunter,

I realize you may be enthusiastic about starting deep diving and deco, but the collective wisdom of the divers on this forum exceeds any one diving career by 10fold, and belitting individual posters does not change that. They are simply looking out for your well-being because they've seen people before foolishly die doing these types of dives. By taking the training, practicing the skills in a controlled environment, and having the knowledge to calculate your own profiles, then you lower your chances of death/DCS/emboli dramatically.

Put it this way.... Some people will drive their car through their neighborhood without a seatbelt, some will even drive on the highway. Doing a 200 ft deco dive without practice, training, and knowledge is like hopping in a formula 1 race car without a helmet, restraints, or even a driving license......

 

[Kevrumbo]

Yep . . .took a Wreck Class with Jo on the Sea Tiger. He brought a lot of the technique and planning concepts from his GUE Cave 1 Class and incorporated it into his Course Syllabus for Wreck Penetration. Also, check-out this thread with Sherman and his team, who just did a Sea Tiger dive today. . .