Reinhold wrote: >In the safety inspections at the Championats de France competitions >they test the PFDs by fixing a weight on it and puttint it into water. >If it floats up, it's ok. Unfortunately I can't tell how many KGs they >attach to a 70-Newton PFD. 70 N=70 kg*m/s^2 (70 kg*m/s^2)/(9.8 m/s^2) = 7.14 kg I'm not sure if they use a 7.14 kg weight or if they compensate for the weight in the water, though. I've wondered about that myself, when the USCG says that the vest must have a bouyant force of 15 lbs. Is that supporting a 15-lb weight submerged in water, or supporting a 15-lb. force, regardless of any buoyant forces (other than the PFD's!) Shawn -- 0 ____©/______ ~^~^~^~^~^~^~^~^\ ,/ /~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^ Baker Brothers 0 Brews & Boats http://www.missoulaconcrete.com/shawn/ Shawn W. Baker mailto://baker_at_montana.com *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue Aug 10 1999 - 09:04:25 PDT
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