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ARA Water Safety Code - British Rowing

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GUIDANCE NOTES2.8.2 Air only, manual or automatic gasAir-Only Lifejackets and Buoyancy Aids rely on inflation to provide buoyancy. They have nopermanent built-in buoyancy. This makes them compact and comfortable to wear.Air-Only Lifejackets are classed by the method used to inflate them:2.8.2.1 Oral inflation is provided by blowing into a tube. In rough weather or if thewearer is unfit this may be difficult.2.8.2.2 Manual Gas inflation occurs when the user pulls a short cord which firesCO2 gas from a cylinder into the jacket.2.8.2.3 Automatic Gas inflation is automatically triggered on entering the waterwithout the wearer having to take any action. This is not recommended forcoxswains. It is recommended for poor swimmers and those with a medicalcondition that may render them unconscious before entering the water, e.g.epilepsy.(Gas operated lifejackets can be inflated orally and the automatic versioncan be fired manually).2.8.3 Air-foam filled buoyancy aidsFor young children and those who prefer their lifejackets to have inherent buoyancy, there isa choice of air-foam filled appliances. One with a collar is best as it supports the head.These products have the disadvantage of being bulkier, but the advantage of being muchcheaper.2.8.4 What is a Newton (N)?A Newton is a measure unit of force. 10 Newtons are approximately equivalent to 1 kilo(2.2lbs) of buoyancy. The European Standard covers four levels of minimum buoyancyperformance. The higher the Newton number the higher the buoyancy rating. The buoyancyrating quoted is for adult sizes only. Smaller sizes will have proportionally less buoyancy.50 Newton - Buoyancy Aid - (11lbs/5.5kg buoyancy) - EN 393100 Newton - Buoyancy Aid - (23lbs/11kg buoyancy) - EN395150 Newton - Lifejacket - (33lbs/16kg buoyancy) - EN396275 Newton - Lifejacket - (62lbs/28kg buoyancy) - EN3992.8.5 Purchase<strong>Safety</strong> equipment should always be purchased from a recognised and reputablemanufacturer and retailer. This is the best assurance of quality. References are to productsproduced by Crewsaver, but there are many other satisfactory suppliers.Page 22

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