A.     Purpose

1.       This Program is designed to train divers who wish to dive between 90 fsw (27 msw) and 170 (51) msw. But do not wish to breathe air below 90 feet (27) msw on the Inspiration CCR. In the safe use of the Inspiration CCR for dives with limited decompression, using normoxic helium-based gas mixtures for diluent, and for stages.

B.     Prerequisite

1.       Must be qualified as a Inspiration Rebreather Diver.

2.       Must meet the prerequisites defined in the Generic Normoxic Trimix Diver program.

C.     Texts

1.       Rebreather Diver Student Manual and Workbook.

2.       Inspiration Owners Manual.

3.       Technical Diver Student Workbook.

D.     Program Content

1.       Complete all academic portions of the Normoxic Trimix Student Workbook, Rebreather Diver Student Manual and Workbook and the Inspiration Owners Manual.

2.       Complete a written exam specific to Normoxic Trimix Diving on the Inspiration CCR with a minimum score of 80%.

3.       This Program must include a confined water session prior to a minimum of 6 dives using the Inspiration CCR with normoxic helium-based gas mixtures with a FO₂ no less than 20% and no more than 30% Helium in the mixture for diluent. Three dives may use EANx or Air mixtures for dives more shallow than 90 fsw (27 msw).

A.       Divers already qualified as Normoxic Trimix Divers must complete the CCR specific lectures and skills plus make 4 dives using Normoxic Diluent gas.

4.        Three of the dives must be deeper than 90 fsw (27 msw).

E.     Equipment Requirements

1.       Must own an Inspiration CCR.

F.     Program Limits

1.       Adhere to all Program Limits specified in the Normoxic Rebreather Diver Program.

2.       One stages cylinder must be carried for bail-out and as a backup Diluent..

3.       No dives may be conducted to depths greater than 170 fsw (51 msw).

4.       Limited decompression (max 25 minutes on CCR).

5.       The PO₂ set-point may not be set higher than 1.30 ATA on the bottom and 1.4 for decompression.

6.       If an oxygen second stage is fitted to the rebreather, the second stage must be protected by a regulator guard.

G.    Water Skills Development

1.       A confined water session demonstrating all skills must be completed to the instructor’s satisfaction prior to conducting any open water dives.

2.       Perform F.L.A.G.S drill after every assembly and prior to each dive.  Must include mouthpiece mushroom valve test.

3.       Bailout drills. OC and SCR, and manual operation.

4.       Full manual dive.

5.       Simulate solenoid failures.

6.       Practice recovery from the 3 H’s.

7.       Become proficient in the following propulsion techniques: modified flutter, modified frog, modified dolphin and standard shuffle kicks.

8.       Simulate manual gas control with valve shutdowns for both primary and secondary regulators.

9.       Deploy lift bag in less than 1½ minute, and repeat at least 3 times during the Program.

10.    Swim a distance of at least 75 feet (23 meters) without wearing a mask.

11.    Practice removing and replacing a stage cylinder, both at rest and while swimming.

12.    Have 2 divers swim side-by-side, in full equipment, simulating an out-of-gas situation (without breathing, and exhaling slowly), for a distance of 60 feet (18 meters), then stop and begin breathing with one diver handing-off the second stage hose to the other diver. Divers should remain a rest for 3 breaths, then swim at an average pace for at least 10 minutes. This drill should be done with the diver breathing from the stage cylinder.

13.    Remove the harness and cylinders from a simulated unconsciousness diver in less than 2 minutes. (Students who exceed the time limit on this skill must have a quick-release added to their harness).

14.    Complete all Waterskills listed under the Rebreather Diver Standards in Sport Diver Programs.

The Below skills are for divers not previously qualified as Normoxic Trimix Divers

15.    Divers using a quick-release on their harness or backpack must, in confined water, swim the system while the instructor disconnects the quick-release to simulate a failure. The student is to swim the system demonstrating control of buoyancy and body positioning with the quick disconnect released for sufficient duration to satisfy the instructor that this type failure may be managed by the student.

16.    Demonstrate an ability to respond to a single-bladder BCD failure by the two methods listed below. (Students using gear configurations that prevent accomplishment of these two skills will be required to wear a redundant BCD. Students who already have a redundant BCD or dry suit may use one of these alternates after attempting perform the methods without the use of the alternative.)

a.       Completely deflate BCD and swim while maintaining buoyancy control for at least two minutes.

b.       Completely deflate BCD, ascend safely to the surface, and remain afloat for at least 3 minutes.

Use counterlungs to assist in buoyancy control.

NOTE: If at any time the student starts to over-exert, or if it is obvious that the skill cannot be accomplished, the instructor is to ensure that the BCD is inflated.

17.    In confined water, have a student lose buoyancy by deflation of the BCD and then attempt to utilize a lift bag or other secondary buoyant device as a BCD.

NOTE: This skill is to demonstrate how effective these devices are and to reinforce that even if not suitable for a redundant BCD they still provide an option for self rescue in an emergency situation.

18.    Following a means of reference (pool wall, guide line, ship railing, etc.) with eyes closed, remove stage cylinder and swim a distance of at least 15 feet (4.5 meters). Reverse direction, return to stage cylinder and replace it on correct side.

19.    Two divers approximately 60 feet (18 meters) apart, with blacked-out masks or eyes closed, and while simulating an out of air situation, locate each other (using side of pool, rail on wreck, guide line, etc. for orientation) and begin gas sharing with the diver breathing from the stage cylinder.

20.    Prior to dives, students must use match gas turn points based on oxygen metabolism.

21.    At least two times on each dive, Instructor is to signal to student(s) that they have an emergency.

22.    Perform gas sharing in one form or another on at least 2 of the air dives. It is recommended that the Instructor do this at times when it surprises at least one of the divers, and at a point when there is a reasonable distance between the divers. On rebreathers this drill should be done with the diver breathing from the stage cylinder.
23.    Complete all Waterskills listed under the Rebreather Diver Standards in Sport Diver Programs.

@

Telephone: +45 2233 8899

Life is short...this is not a test

race