Submerged Vehicle Awareness Objectives Describe Public Safety SCUBA PPE Describe initial vehicle behavior Identify hazards associated with submerged vehicle Identify training concerns for submerged vehicle extrication Size Up Normal vehicle extrication cues are absent Most dives will be blackwater operations Must rely on own knowledge of vehicles Visualize scene underwater Size Up Type of vehicle Other Considerations Window position on Model entry State when found Surface clues Damage, windows Tracks, damage Distance from shore Personal belongings Depth,current,wind Oil Always search shore! Passengers who self extricated prior to arrival Ejections Victims who may have floated away Especially true of infants DIVER PPE Public Safety Drysuits Full face masks Pony bottles Locking Harness Multiple cutting tools Contingency SCUBA setup Tethered with tender and hardwire communication Project S.T.A.R. 1992 Study 25 standard production autos were launched into the water Measured Flotation times Damage to vehicle Viability of electrical system In car video recording Vehicle behavior Average float time after impact 2-3 minutes Buoyancy affected by Condition of windows Integrity of doors Window and door seals SCHOOL BUSES ARE DEADLY! Vehicle behavior Starting to sink Tendency to sink nose first due to engine Water enters through air vents as air escapes through backseat and trunk Water deeper than 14’ results in vehicle inversion Vehicle behavior Electrical System Lights Windshield wipers Windows Operational for up to 10 minutes after submerged Vehicle Hazards Entanglement Steering wheels Shifters Hand brakes Loose carpeting Seat belts Loose carpeting Wiring Broken glass Twisted metal Seat springs Vehicle Hazards Cars in current Vehicle shifting trapping diver Never be on downstream side of vehicle Underwater eddy digs hole A potential fatal hazard Gas filled containers Soda bottles can dislodge mask or regulator A spare tire can break a divers neck! When searching a submerged vehicle stay low! Vehicle Hazards Hazmat Aspiration of oil- contaminated water can be deadly Petroleum contact with eyes can cause temporary blindness Drugs, Meth Labs. (cocaine becomes acid in water) Decontamination procedures post-dive Training Considerations SCUBA Black water Entanglements Out of air emergencies Non-electronic communications Entering vehicle Securing an open passageway Managing entanglements Review What’s the best method to escape from a sinking automobile? In water greater than 14’, how will and automobile tend to land? What may a diver infer if he discovers the electrical system is still operating? Based on Project STAR, what will kill the busdriver?
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