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INFORMATION
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Local Diving

Email
mastertrimix@mac.com
Telephone
718 384 1280

WHEN:   By appointment

LOCATION:   Classes are held in Manhattan or Stingray Divers-Brooklyn; Open water location is at Forty Fathoms-Ocala FL. or sometimes can be tailored to meet desired dive site demands.

OVERVIEW: This course is to provide the diver with a working knowledge of the theory, methods and procedures of planned stage decompression diving. As a part of the course students will plan and conduct a standard stage decompression dive not exceeding a maximum depth of 130 fsw (40 msw). This course is an extension of the Technical EAN Diver Course and is highly recommended for anyone planning to dive deeper than 100 fsw.

QUALIFICATIONS OF GRADUATES: Upon successful completion of this course, graduates are considered competent to plan and execute dives that require stage decompression utilizing air and EANx 28% to 100% Oxygen for decompression without direct supervision provided the diving activities and the areas dived approximate those of training.

PREREQUISITES FOR ENTERING THE COURSE:
Minimum age: 18.
Minimum certification: NAUI Master Scuba Diver and Deep Diver Specialty (or the equivalent) and Technical EANx Diver, Helitrox Diver or its equivalent.
Required Dives: Proof of 75 logged dives
Other: Receive dive instructor's approval, have dive insurance and signed medical and liability waivers

COURSE POLICIES:
Classroom hours: 8 estimated
Open water dives: 6 estimated (10 approximately if combined with Technical EAN Diver course)

EQUIPMENT: NAUI Technical Equipment Configuration (NTEC)

REQUIRED READING
Technical EANx Decompression Techniques and Extended Range
by Jan G. Neal           Can be purchased at Stingray Divers

CLASS TOPICS COVERED
Continuation and review of NAUI Technical EAN Course--see outline of Technical EAN Diver

Also covered are best mix and maximum operating depth mixture computations plus decompression options using EANx and oxygen and the need for five minute air breaks every 20 minutes during stage decompression as well as the off phenomenon when using 100% oxygen.

DIVE SKILL REQUIREMENTS
Same as Technical EAN Course but also to include

1. At least four of the six required dives are to be made using oxygen or EANx as a decompression gas.
2. If simulated or actual planned decompression stops are intended on any dive, divers will demonstrate simulated or actual stops and use an up line or lift bag and reel.
3. Contingency dive planning and problem solving situations are to include omitted decompression, altered bottom time profile with increased or decreased decompression requirement and recalculation, loss of ascent equipment, i.e., lift bag and reel, stage cylinders, ascent line, loss of decompression breathing gas and gas supply loss with emergency ascent and decompression gas supplied by dive partner.
4. Students shall participate in a diver rescue simulation to include management of a diver experiencing underwater convulsions.
5. Each diver is to demonstrate switching and isolating a malfunctioning regulator and/or cylinder. (SOS drill)
6. Each diver is to demonstrate underwater navigation appropriate to the dive plan.
7. On at least two of the required dives, student is to ascend with ascent reel and bag and perform necessary or simulated stage decompression.