YD Scuba Diving Forums banner

1 - 20 of 94 Posts

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #1 · (Edited)
TDI has a new distinctive speciality course - Helitrox Diver.

This course is designed to allow divers to use Helium in their breathing mixtures for dives between 30m-45m. The course is being offered in TDI regions where the local conditions would suggest the use of Helium mixes in the 30-45m range. UK diving can be challenging in this range and so the course has been introduced in the UK to run in parrallel with the TDI Decompression Procedures course for anyone wanting to progress beyond 30m but who would prefer to use a Helium based breathing mixture rather than Air or Nitrox. The Decompression Procedures course is still available for those who want to dive in this range without using Helium. The course will be taught only by specifically approved instructors who are active Trimix instructors.

The course can be taught on its own, combined with TDI Advanced Nitrox or taught as an upgrade to existing TDI Adv Nitrox/Deco Procedures divers.

The Helitrox course examines the theory, methods and procedures for planned stage decompression diving utilizing Helium in the breathing mixture. This program is designed as a stand-alone course or it may be taught in conjunction with TDI Advanced Nitrox. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45m. The most common equipment requirements, gear set-up and decompression techniques are presented. Students are permitted to utilize Enriched Air Nitrox and Helium mixes with no greater than 20% He and no less than 21% Oxygen content as well as up to 100% Oxygen for decompression diving if combined with Advanced Nitrox.

For more information contact

Stephen Phillips - SDI/TDI UK - [email protected]
Mark Powell – Dive-Tech – [email protected]
 

·
Registered
Joined
·
3,335 Posts
I was talking to Steve about it last Sat, he said there was only 3 instructor that do it at the moment.
Who is the other one?
 

·
Registered
Joined
·
793 Posts
Interesting, it Dv diving can do this then thats my mind made up were i do a adv nitrox and 'rec' trimix course
 

·
Muff Diver Technique Instructor
Joined
·
1,390 Posts
if im not mistaken . by the sounds of it , its a weak helium normoxic mix . that is covered in the entry level trmix course ,

and a serious question are TDI goin to do a different coures for each depth on trimix as PADI's tec side are doin ?
 

·
Registered
Joined
·
915 Posts
Hi Mark,
Might possibly be interested in doing the upgrade from ANDP course. What would I have to do and how much would it cost!?

Cheers

Tom
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #11 · (Edited)
if im not mistaken . by the sounds of it , its a weak helium normoxic mix .
Weak helium - yes
Normoxic - no, you can use higher then 21% and so it's hyperoxic rather than normoxic.

that is covered in the entry level trmix course ,
Yes that is covered in the Normoxic course. You could use 25/20 with a Normoxic ticket but this is aimed at those who only want to do 30-45m and use a single stage. It is an alternative to the Adv Nitrox and Deco Procedures course.

So the progresion is

45m - Adv Nitrox/Deco OR Adv Nitrox/Helitrox
60m - Trimix
100m - Adv Trimix





and a serious question are TDI goin to do a different coures for each depth on trimix as PADI's tec side are doin ?
there is no change to the other Trimix courses. Trimix is still 60m and Adv Trimix is still 100m. We have just added an option for those who want to do up to 45m but with some Helium to reduce narcosis.
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #13 · (Edited)
Hi Mark,
Might possibly be interested in doing the upgrade from ANDP course. What would I have to do and how much would it cost!?
If you have already done Deco Procedures then you wuld nedd to do;

Theory
- Advantages of Helium for bottom gas
- Dive planning using Helitrox
- Nitrogen and Helium decompression
- Physiological aspects of Helium

Practical
- Analysing Helitrox mixes
- Assessment dive to demonstrate a selection of required skills
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #14 · (Edited)
How much would a Helitrox course be?

I am loving the word Helitrox btw. Very tecreational :D
Each instructor will set their own price. I've pm'd you with details.
 
G

·
So, you could do:

Adv Nitrox/Deco Procedures, 3 days, using air and nitrox (upto 100%), £380

Adv Nitrox/Helitrox, 3 days, using weak trimix and nitrox (upto 100%), £400

No brainer really!
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #16 ·
So, you could do:

Adv Nitrox/Deco Procedures, 3 days, using air and nitrox (upto 100%), £380

Adv Nitrox/Helitrox, 3 days, using weak trimix and nitrox (upto 100%), £400

No brainer really!
Yep, that's about it.
 

·
Wannabe Lotto Jackpot Winner..!
Joined
·
941 Posts
It is a one day upgrade that covers;

Theory
- Advantages of Helium for bottom gas
- Dive planning using Helitrox
- Nitrogen and Helium decompression
- Physiological aspects of Helium

Practical
- Analysing Helitrox mixes
- Assessment dive to demonstrate a selection of required skills

The cost will be around £150 for a one day upgrade.
Sounds very interesting Mark, is restricted to single stage deco diving only?
 

·
Off to T.D.F.
Joined
·
695 Posts
Just to clarify - the new course on its own is for diving a single gas mix, and you should do the Advanced Nitrox course as well to cover having a deco stage? Or does the helitrox cover using a deco stage (and in which case, what does it allow?)

How much & how long are the Helitrox course on their own, and with the Advanced Nitrox course?
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #19 ·
Sounds very interesting Mark, is restricted to single stage deco diving only?
Yes, single stage only. Managing two stages is too much to cover in the duration. In addition for 45m dives a single stage is all that is necessary.
 

·
TDI Instructor Trainer
Joined
·
2,949 Posts
Discussion Starter · #20 · (Edited)
Just to clarify - the new course on its own is for diving a single gas mix, and you should do the Advanced Nitrox course as well to cover having a deco stage?
That is correct, you need to combine it with the Adv Nitrox in order to cover the use of a deco stage. I anticipate that the majority of people doing the Helitrox course will do it in conjunction with Adv Nitrox, in the same way that the majority of people doing Deco Procedures do it in conjunction with Adv Nitrox.

Or does the helitrox cover using a deco stage (and in which case, what does it allow?)
No, Helitrox on its own does not cover the use of a deco gas. Again this is the same as Deco Procedures which does not on its own cover the use of a deco gas.

If you already have an Adv Nitrox qual then you can just add on Helitrox.
 
1 - 20 of 94 Posts
Top