The UTD Wreck Penetration 2 course is the next step in the wreck penetration series of classes. The Wreck Penetration 2 course is designed to prepare you for more advanced wreck dives utilizing a maximum of two bottles (either two deco bottles or a single stage bottle + one deco bottle) in addition to back gas to penetrate wrecks, opening the way for longer penetration times and access to deeper wrecks. Students will expand their knowledge of gas management by adding these additional bottles with the use of doubles, laying and retrieving guideline, following the line, and become familiar with the failures associated with wreck penetration. The failures will expand on what was learned in the UTD Wreck Penetration 1 course. All protocols and procedures are derived from the UTD overhead environment procedures and are applied to wreck diving. This class provides an excellent foundation to build wreck diving experience and prepare for the challenges found during the UTD Wreck Penetration 3 course.

Once you have been inside a wreck it is obvious to most divers that being able to explore the wreck further is critical. Being able to explore the engine room of your favorite wreck is something few people get to do. Often forgotten is that by pushing the distance of penetration in the overhead, the risk is also increased which is why you need to be properly trained.

Prerequisites

1. Must meet UTD General Course Prerequisites as outlined in Section 1.6
2. Minimum age of 21
3. Completed UTD registration process
4. UTD Wreck Penetration 1 (no equivalent certification allowed)
5. UTD Technical 2 or equivalent with assessment
6. A minimum of 125 dives beyond OW certification. 50 of which must be non-training dives (not part of a class)
7. All participants must be able to swim at least 300 yards in 14 minutes or be able to swim 800 yards in 18 minutes with mask and fins
8. All participants must be able to swim a distance of at least 50’ (12m) on a single breath hold or demonstrate an air share swim where the OOA diver swims at least 50’ (12m) to the donating diver
9. All participants must demonstrate a rescue of a diver simulating oxygen toxicity

Duration

The UTD Wreck Penetration 2 course is normally conducted over a five day period following the UTD Wreck Penetration 1 course. UTD Wreck Penetration 2 may not be combined with any other class. It involves a minimum of 40 hours of instruction to include classroom, dry runs, and in-water work.

Course Limits

1. General Training Limits as outlined in Sections 1.4
2. All dives are to maintain a working PO₂ of no greater than 1.4
3. Max training depth is 200’ (60m)
4. All dives are decompression dives with a maximum of 2 deco bottles or 1 stage bottle and 1 deco bottle depending on the depth of the dive.
5. 1 stage bottle is allowed either inside or outside of the wreck
6. Standard gases are Nitrox 32, 25/25, 21/35, 18/45, Nitrox 50, and Oxygen
7. Standard UTD/DIR configuration to include either double tank Backmount or sidemount.
8. Max penetration distance is 660 feet/200 meters
9. Maximum penetration is 1/3^rd of gas after Rock Bottom has been removed
10. Student to Instructor ratio is a maximum of 6:1 in the classroom and dry runs, 4:1 in open water in-water sessions, and 3:1 in any overhead environment

Academic Topics

1. UTD organization, limits of training, and course completion requirements
2. Working knowledge (including setup and failures) of a double tank configuration
3. Working knowledge (including setup and failures) of a stage bottles
4. Reel and guideline use
5. Navigational marker use (use of Arrows, Cookies, and REMS – include personal markings of these items)
6. Dive team order and protocols
7. Touch contact
8. Use of safety spools and reels
9. Navigation skills
10. Extensive practice/use and failure of guidelines and protocols 
11. The history and practice of minimum decompression
12. Physics, physiology, tables and operational considerations

Equipment Specifications 

1. All equipment noted in paragraph 3.0
2. One primary reel per team, with a minimum of 400 feet/120 meters of line
3. One safety spool with at least 100 feet/30 meters of line
4. One jump reel with at least 100 feet/30 meters of line
5. At least six (6) line markers of which at least three (3) should be directional (line arrows) and three (3) non-directional. Diver's initials or other identifying information should be readily visible.