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TDI Advanced Trimix Diver

100m Deep Dive

  • 60 小時
  • 面議
  • 水渠道


What you can expect to learn: Advanced decompression dive planning including: Gas planning based on equivalent narcotic depths, nitrogen and helium absorption and elimination, CNS and OTU limits, isobaric counter diffusion, volume requirements, etc. Use of hypoxic gasses HPNS and isobaric counter diffusion Decompression gas choices Tables vs. personal dive computers Emergency and contingency planning (equipment failure, omitted decompression, etc.) Decompression diving procedures Equipment selection Pre-dive checks and drills Stress analysis and mitigation Following a decompression schedule Gas switching Team awareness and communication SMB/lift bag deployment Proper trim, buoyancy and fining techniques Management of multiple (minimum of 3) decompression/stage cylinders Emergency procedures (equipment fWho this course is for: The certified technical diver looking to extend their range and take advantage of the benefits of utilizing a DPV on technical dives Course prerequisites: Minimum age 18, 15 with parental consent Certified as an SDI Open Water Scuba Diver or equivalent Proof of at least 25 logged dives What you can expect to learn: The following topics must be covered during this course: Motivations for DPV diving Advantages of DPV use Equipment considerations DPV options DPV components Rated burn time Care and maintenance DPV rigging Problem solving procedures DPV malfunction or failure Towing Gas sharing with DPVs Entanglement Collision avoidance Team separation Environmental considerations Appropriate vs. inappropriate dive locations Suitable environmental conditions Low impact DPV use DPV diving techniques Buoyancy and trim with DPV Instigating directional and depth changes DPV “parking” DPV courtesy and etiquette Dive planning and gas management Turn time, turn distance, and turn pressure Gas mix(es) and NDL’s or decompression obligations Required Skill Performance and Graduation Requirements The student must perform the following S-drill and skills during all dives: Demonstrate adequate pre-dive planning Equipment check and equipment matching Bubble check Demonstrate specialized propulsion techniques in varying types of flow Demonstrate proper buoyancy control Demonstrate proper body posture Demonstrate proper stress analysis (detection and management) The student must perform the following in-water skills during dives: Proper use of DPV Gas sharing ascent with DPVs clipped off Ascent with a disabled DPV Tow a team member and his disabled DPV


  • Tung Lok Building, 34-36 Nullah Road, 太子香港


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