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Purpose

This Program is designed to provide responsible training to divers who plan to dive to a maximum of 130 fsw (39 msw) on air.

The IANTD Deep Air Diver Program trains divers in skills, performance, theory and planning of deep dives. This Program remains within the commonly practiced depth of 130 fsw (39 msw), and is the first sanctioned international Program to provide proper training in safe deep diving skills and performance.

It is recommended that this Program be combined with the IANTD EANx Diver Program.

 

Prerequisites

 

Course fee include
  1. Instruction :
  • Classroom lectures 7 to 9 hours
  • Confined water and Open Water Training
  1. IANTD Deep Air Diver Student Registration Package :
  • IANTD Deep Air Diver Student Manual & Workbook
  • IANTD Deep Air Diver Wall Certificate
  • IANTD Deep Air Diver Card
  • IANTD Decal
  1. Rental of tanks with dual-outlet valve.

 

Student Equipment Requirements
  • Mask
  • Fins/booties
  • Snorkel
  • Submersible pressure gauge
  • Buoyancy control device (BCD)
  • 2 regulator 1st stage, 1 primary regulator 2nd stage, 1 secondary regulator 2nd stage with 7 feet hose and 1 inflator hose.
  • Depth gauge and bottom timer or a dive computer. Submersible dive table must be used as backup to a dive computer or for control of the dive.
  • Appropriate exposure suit for the environment being trained in.
  • Slate and pencil
  • Cutting tool or device
  • Compass
  • Surface alert device (whistle, diver alert, etc.)
  • Equipment is to be configured in a neat low-drag manner.
  • A life bag of at least 50-lb. (22.5kg) lift capacity and a line reel for deployment.
  • Bolt snap hooks / scissors clips used for attaching equipment to the diver are recommended.

 

Program Limits
  • Not more than 4 students per Instructor.
  • Minimum of 2 students to start the course
  • No dives may be conducted to depths greater than 130 fsw (39 msw)
  • Appropriate safety decompression stops must be performed.

 

Program Content
  • All lectures and theory materials must be completed.
  • This program must include a minimum of 100 minutes of Open Water bottom time completed within 4 to 6 dives, 2 of which must be to depths between 100 fsw (30 msw) and 130 fsw (39 msw). If combined with an EANx Program, the dives in both Programs may be included within the minimum 100 minutes of bottom time.
  • Unit one : Physiological & Psychological considerations for deep air diving
  • Unit two : Oxygen
  • Unit three : Nitrogen Narcosis
  • Unit four : Hypothermia
  • Unit five : Decompression Theory
  • Unit six : Introduction to deep diving breathing techniques
  • Unit seven : Equipment configuration
  • Unit eight : Dive planning and gas management

 

Waterskills Development
  1. Swim in full underwater equipment for 5 minutes.
  2. Calculate RMV from gas consumed during a 10-minute swim (based on change in cylinder pressure).
  3. Become proficient in the following propulsion techniques: modified flutter, modified frog, modified dolphin and standard shuffle kicks.
  4. Demonstrate buoyancy control by:
  • A timed ascent at a rate of 20 feet (6 meters) per minute.
  • Hover at constant depth for 3 minutes.
  • Swim 75 feet (23 meters) in full equipment without mask.
  • Deploy a lift bag in less than 2 minutes.
  1. Air sharing skills:
  • Swim in a simulated out-of-air situation (without breathing, and exhaling slowly) for a distance of at least 45 feet (15 meters), and commence gas sharing. While gas sharing, continue to swim for at least 4 minutes while maintaining a normal swim rate.
  • Repeat the above step with the gas-recipient diver wearing a fully-flooded mask (or no mask at all), and swim 2 minutes while sharing gas.
  1. Perform valve shutdowns: change regulators and shut the primary-regulator valve off, then reopen valve and repeat as if the secondary (backup) regulator had malfunctioned. Repeat until skill (both valve openings shutdowns) is completed in less than 2 minutes.
  2. Close and open tank valves on all dives.
  3. Deploy lift bag on at least 2 occasions.
  4. Remove and replace tank and BCD at surface on at least one dive.
  5. All ascents are to be at a rate of 30 feet (9 meters) per minute or slower.

 

Watermanship Evaluation
  1. Skill One  (confined water)

Two buddies with blacked-out masks (or closed eyes) face each other at a distance of 50 feet (15 meters) apart, and follow a line or other reference towards each other, without breathing. Upon contact, they commence gas sharing (alternate second stages or pony cylinder hand-off) and maintain contact with each other while swimming for a distance of 900 feet.

  1. Skill Two

Ascend from a depth of at least 60 feet (18 meters) at a rate of 30 feet (9 meters) per minute, plus a 10-minute safety stop at a depth of 15 feet (4.5 meters), with depth variation no greater than 3 feet (1 meter) for the duration of the stop. The ascent is to be controlled via the BCD, not by pulling up a line.

  1. Skill Three

Deploy a lift bag from a depth of 20 feet (6 meters), and at least 30 feet (9 meters) above the bottom. The diver must complete the deployment and maintain depth within a maximum of ten feet (3 meters) variation (i.e., the diver cannot ascend to a depth shallower than 10 feet [3 meters], or descend to a depth greater than 30 feet [9 meters]) during deployment of the bag.

  1. Skill Four   (confined water)

Use of malfunctioning equipment:

  • Use a free-flowing regulator for 3 minutes.
  • Maintain buoyancy control via oral inflation of the BCD for five minutes.

During this time, swim for a distance of at least 50 feet (15 meters) at one depth, then ascend by 3 feet (1 meter) and repeat, then descend by 3 feet (1 meter) and repeat. This should be followed by a controlled ascent and controlled descent at a rate of no more than 10 feet (3 meters) per minute, while swimming in an area with a variation in depth.

For more information, contact bbcdiver@starhub.net.sg or call us at 222 6862 for more details now!