Copyright 2012 CFT NITE/1 ISO 24801-2 / EN 14153-2 "AUTONOMOUS DIVER" Night Diving.

Copyright 2012 CFT NITE/1ISO 24801-2 / EN 14153-2 "AUTONOMOUS DIVER"

Night DivingNight Diving

Copyright 2012 CFT NITE/2

We will cover Why and Who should go Dive Planning Extra Equipment

Personal Boat Shore Based

Dive Brief & Buddy Checks During the Dive After the Dive


Why go Night Diving? Underwater life different Challenge, pushing out the envelope Different procedures, new skills


Who Should Go Recommended Club Diver (Diver **) Experienced Diver


Planning Local Knowledge Dive the site in daylight Note hazards & alternate exit point Lights on shore to aid navigation


Personal Equipment Torch or Lantern, types, min. one per diver Back up light recommended Good batteries Light sticks Whistles Min tank size of 12 l.


Boat Equipment Lights to be seen by other vessels Lights to see diver on the surface Correct use of lights & backups Shot line light or strobe


Shore Based Equipment Marking of exit point Use of ‘Leading Lights’ Emergency Vehicle Slip or other boat recovery area


Dive Brief Correct use of lamps Procedure if a torch fails Procedure for lost buddy Depth and direction / navigation Beware of looking only at the lit area Procedure if lost on the surface Diver recall signals Extra care by cox’n.


Signals Using Dive Torch

O.K. Something wrong

(Click on images)


Buddy Check All the usual checks Lamps OK? Compasses OK? Demonstrate use of lamps


During the Dive All the normal procedures Don’t shine in buddies face (or your own) Check buddy often Monitor direction constantly Look all around, not only down


After the Dive Report to the shore marshal Complete logs and debrief Take care in the boat & unloading Check for gear left behind


Summary Extra Planning & Equipment New Skills - Use of lamps Maintain “Night Vision” Safety in Boat Handling Safety & Consideration on Shore

Copyright 2012 CFT NITE/15ISO 24801-2 / EN 14153-2 "AUTONOMOUS DIVER"

QuestionsQuestions


When may a dive be classified as a ‘Night Dive’?

a) Between sunset & sunriseb) During hours of total darknessc) After midnight


Divers lamps and torches are used to:

a) Illuminate hand signalsb) Allow the diver to be seenc) Allow the diver to seed) All the above


Night diving can be more stressful and result in:

a) Night blindnessb) Loss of feeling in the handsc) Greater air consumptiond) Fear of depth


We must not shine lamps directly into other divers eyes,

because: a) They will see usb) Their ‘Night Vision ‘ will be reducedc) They will be seen by the cox’nd) We will see them


A cox’n MUST carry spare lamps, so that:

a) A diver, whose lamp has failed may borrow oneb) The assistant cox’n will have a light of their ownc) There will always be a light in the boat

Copyright 2012 CFT NITE/1 ISO 24801-2 / EN 14153-2 "AUTONOMOUS DIVER" Night Diving.

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Transcript of Copyright 2012 CFT NITE/1 ISO 24801-2 / EN 14153-2 "AUTONOMOUS DIVER" Night Diving.