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| DIR Training & Courses: Discuss DIR-F Buoyancy requirements/drills? in the DIR forums: Hi guys, I've been interested in DIR stuff for a while now, having dived on Brian's boat a ... |
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You should have got hold of Rich (Walker) while he was out your way recently, he came back from the Far East this monday, jammy git
__________________ Gareth Images of Life Photography DIR Team Foxturd Blog: Travels Underwater and Further Afar Son, you're going to have to make up your mind about growing up and becoming aircrew. You can't do both. The aircraft limits are only there in case there is another flight by that particular aircraft. If subsequent flights do not appear likely, there are no limits. |
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Rich
__________________ GUE education from Rich Walker. Equipment from Halcyon. Expeditions for GUE trained divers. www.wreckandcave.co.uk |
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| For buoyancy - Proper weighting, balanced config, no unnecessary movements, controlled relaxed breathing .... just like everyone else. Fundamentals requirement is within 0.5m of the target depth. For trim - 30 degrees to the horizontal for a Rec pass and 20 degrees for a Tech pass. Students spend a lot of the course close to a reference point learning to maintain a "geo-stationary" position. Although 20 and 30 sounds a lot, it definitely requires work. During finning it is much easier to get flatter trim but the natural reaction of many divers, when they stop finning, is to drop their knees and adopt a 45degree attitude. The problem with that is that if a buddy has a problem and you need to swim toward them to help, then your first kick will take you shallower. Your buddy's kick will do the same thing, so at least you meet and can resolve the problem ..... but you now have a buoyancy issue to deal with The flatter you are, the less the buoyancy change. Students get videoed to understand how their attitude in the water measures up to their mental image and the instructor will help the student dip forward to get closer to the required trim. Each time progress is reviewed on video. When a student can feel what flat/near flat feels like it's much easier to re-establish. Keeping it when things don;t go so well can take a little longer though. HTH Mal BTW Books, internet and videos don't compare to the real thing though |
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Will they let you? Mal |
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__________________ Marty. My ignorance amuses me....(that ignorant git on Tomb Raider) |
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Simple answer is get a buddy to video you doing skills on the hover. It will show up all the areas of improvement needed. Its the most powerfull teaching tool there is. ATB Mark
__________________ Mark, dispite the fact your a Heron shagging tosser I agree with you , Steve S 10/04/08 ATB as most people will tell you, means Always Talking Boll@cks. My responses to threads should be treated accordingly All The Best Mark Chase Screw the force Luke, use the VR3 |
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I certainly agree with the first bit but I am not so sure that just knowing what the gap is between your current performance and your desired performance is all you need to know to fix it. It presumes you already know how to get and maintain the trim you desire, which I don't think is the case, in most people I've discussed it with. Rgrds Mal |
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True But I do remember being on DIRF and thinking i was flat as a board till i saw the video. It was very dificult to argue with the video footage ATB Mark
__________________ Mark, dispite the fact your a Heron shagging tosser I agree with you , Steve S 10/04/08 ATB as most people will tell you, means Always Talking Boll@cks. My responses to threads should be treated accordingly All The Best Mark Chase Screw the force Luke, use the VR3 |
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