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BSAC Ocean Diver Training

BSAC Ocean Diver Training. Going Diving. Going Diving. Aim Understand the practicalities of going: Buddy diving Overall diving organisation The role of the Dive Manager The dive plan Going on a dive Pilotage and vision underwater. Buddy Diving.

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BSAC Ocean Diver Training

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  1. BSAC Ocean Diver Training Going Diving

  2. Going Diving • Aim Understand the practicalities of going: • Buddy diving • Overall diving organisation • The role of the Dive Manager • The dive plan • Going on a dive • Pilotage and vision underwater

  3. Buddy Diving • Diving as a buddy pair = Safety & Enjoyment • Monitor each other and assist if necessary • Help in kitting-up, entry, exit and de-kitting • Develop diving skills with more experienced buddies • Share, compare and learn from diving experiences • Discover the type of diving you enjoy

  4. Buddy pair Buddy pair Buddy Dive Plan Buddy Dive Plan Max. Depth Max. Time Max. Depth Max. Time Dive details Dive details Overall Dive Organisation The Dive Manager: • is responsible for all diving on site • Selects suitable site • Arranges the buddy pairs • Gives dive brief Buddy pair: • Lodge dive plan with DM • Lodge dive details with DM after dive Dive Manager DM Dive Brief

  5. The Dive Manager’s Role Responsible to the Diving Officer/Lead Instructor • Assessing risks • Buddy pairings • Diving grade and depth limitations • Monitor conditions Information and Safety Brief • Dive site information • Hazards to avoid • Surface support cover, Assistant Dive Manager • Separation procedure In assessing all the risks the Dive Manager can abort diving at their discretion

  6. The Dive Plan - SEEDS • Safety • Fit to dive • Within capabilities • Exercise - dive objective • Depth & time (tables or computer) • Breathing gas - Rule of Thirds • Equipment • All present and working • Discipline • Agree who is dive leader • Stay together • Separation procedure • Signals - normal & any special

  7. Before the Dive Confirm dive plan with the Dive Manager • Dive duration • Planned depth • Dive objective etc. The buddy brief - recap the plan • Dive objective • Depth and time • Breathing Gas “check points” • Signals • Separation procedure

  8. The Buddy Check Buoyancy • Direct feeds working • Dump valves working • Controlled by dry suit or BC? Air • Check primary demand valve • Check easy access to octopus and ensure it is working Releases • BC • Dry suit direct feed • Weight belt or weight system

  9. Going on the Dive • Plan (SEEDS) • Brief • Kit up • Buddy check • De-kit • Debrief • Log details Entry Exit Descent Ascent The Dive

  10. The Dive - Entries Shore • Wade in • Assist with fin fitting Shore or large boat • Stride or forward roll entry • Sufficient water depth • Clear of other divers • Small boat • Backwards roll entry • Clear of other divers Following entry • Diver to give OK to surface cover

  11. Shelf or wall Shotline The Dive - Descent • OK/down • Stay together • Clear ears • Buoyancy control • Check depth • Check breathing gas • Check octopus • Check buoyancy • OK to continue

  12. During the Dive • Stay together • Monitor conditions • Monitor depth • Monitor breathing gas • Monitor buddy • Keep to plan • Separation procedure • If unhappy at any point - abort the dive

  13. The Dive - Ascent • Signal OK to buddy • Signal OK to surface cover • Controlled 1 min. ascent to surface • Buoyancy control • 6m check depth • Stay together • Buoyancy control • OK/up

  14. The Dive - Exits Shore • Wade out • Assist with fin removal Shore or large boat • Steps or ladder • Mask, demand valve, gas in BC • Stay clear of diver on ladder Small Boat • Remove weight belt • Remove scuba equipment • Fin upwards into boat

  15. Post Dive • Dive details • To Dive Manager for Branch/Centre records • For own dive logbook • Buddy dive debrief • What you have seen • What you have learnt or experienced • Any areas for improvement/more practice • Any kit configuration adaptations for future dives

  16. Dive Flags The International ‘A’ Flag • I have divers down, stay clear and reduce speed American Sport Divers Flag • Divers below, stay clear

  17. Underwater Pilotage Underwater features Mentally map the features • On outward journey for return journey • Monitor depth

  18. Focusing of the eye in air and underwater Air Air Actual object Apparent image Vision Underwater Underwater “vis” = horizontal range of vision Refracted rays pass from water to air

  19. 5m 10m 15m 20m 25m 30m Colour Underwater Absorption of colour underwater

  20. Colour Underwater Natural light With artificial light Suspended particles, ‘turbidity’, reduces light and visibility

  21. Summary • Diving is an adventurous sport and its risks need to be assessed and managed to make it as safe as possible • The importance of buddy diving • Understanding dive organisation • Understanding the role of the Dive Manager • Preparing, briefing and checking before the dive • Diving the plan • Pilotage and vision underwater

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