Deep Diving What is deep diving? Planning Considerations Narcosis Decompression Sickness Equipment USCG Duane

Deep Diving Deep diving definition The Maximum Recreational limit Technical Diving

Deep Diving Reasons for deep diving Extending depth limits Stress

Deep Diving Additional Considerations Safety stops Emergency procedures Surface support Buddy techniques

Planning Considerations Shorter bottom times Density Air Consumption No-Decompression Limits

Nitrogen Narcosis What is narcosis? Effects Concerns Prevention

Nitrogen Narcosis Evaluation Timed math problems –Surface –At depth

Decompression Sickness The “Bends” Caisson Disease –What causes DCS? –Contributing Factors

Decompression Sickness Symptoms Pain in joints Weakness Skin Rash Numbness Vomiting Visual disturbances Tingling Dizziness Decreased sensation Paralysis Unconsciousness Extreme Fatigue Headache Ringing Ears Muscle pain Personality change

Decompression Sickness Symptom Onset First Aid Hyperbaric Treatment

Decompression Sickness Prevention Dive Planning Table use/dive computer No-Decompression Limits Bottom times Ascent Rates

Deep Diving Gear Suitable Regulator SPG Timing and Depth Redundant supply Additional Tanks Descent Line

Deep Dive - USCG Duane Commissioned 1936 De-Commissioned 1985 Sunk 1987 – Artificial Reef 327 ft. long Cost $2,468,460 Lies in 130 fsw

Deep Dive - Duane Max Depth-110 Max Bottom Time-15 min Ascent Pressure-1200 psi Ascent Time- 12 min

Deep Dive Duane Entry Descent The Dive –Groups, Currents, Goals Emergency Procedures

Deep Dive Duane Ascent Safety Stop Boarding the boat Roll Call

Deep Diving - End What is deep diving? Planning Considerations Narcosis Decompression Sickness Equipment USCG Duane