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Post by Linda on Jan 6, 2006 15:36:09 GMT -8
If you're interested in BC's, here is a 1980 illustrated report by the U.S. Navy... The file is provided in .pdf format, courtesy of John Ratliff. CLICK HERE
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Post by jamiep3 on Jan 12, 2006 6:51:31 GMT -8
Only had a chance to scan it so far, but looks like a great source of information. Thanks to John for providing it and you for posting!
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Post by mossback on Jan 12, 2006 9:58:37 GMT -8
Interesting reading.........more interesting is the comments made about the back mounted bc's......needing a crotch strap to prevent them from riding up........I never noticed it with my old Zeagle and using my Tekna single hose.........did notice the rideup when using my RAM this last year.............have attached a strap to both my backpacks for twins and single tanks.
I have a Seatek horsecollar........it hs the potential to cause a reverse problem to the navys preference.....they require the bc to remain on the diver after ditching the tank........My experience in boarding boats from a dive in Cozumel requires one to inflate their bc and shuck it with tank attached to be hauled up by the boat support crew then the diver boards the boat.....not sure how using a horsecollar bc would be handled there.........
Not a problem in the gulf, one boards with tank, bc etc on ones back............
Does anyone have any current experience in Cozumel using a Horsecollar on the day boats?
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Post by Captain on Jan 12, 2006 15:45:13 GMT -8
What are they going to do if you tell them you will board with your tank on, leave you in the water and sail away.
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Post by mossback on Jan 12, 2006 19:37:33 GMT -8
I'm sure they won't sail away with one in the water, still I'd like to know how they handle horsecollar users nowdays.........since most traveling divers use jackets, back mounted or some type in between...........
I've climbed in their boats with my tank on once or twice......I once asked not to do it again.......the other time I just received some consernated stares....doesn't help to P O the boat crew.........
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Post by nemrod on Jan 22, 2006 20:26:07 GMT -8
I have the Dacor twin bladder SeaChute shown in the artical. I got mine I am pretty sure right about 1975 give or take. The 15 lbs lift of the lower bladder is more than enough for most types of diving. The lift being centered under the tummy results in excellent trim but a slight tendency to roll over (side to side) especially when I use my Double 50 set. I wish they would make them again. I moved the power inflator on mine from the end of the corrugated hose and relocated it to just above the elbow. This allowed the inflator hose to route under the arm for streamlining and reduced snagging and easy to blip the inflator without having to reach. This BC was great in caves because unlike most horsecollars of the time it had no tendency to roll the diver head high and fins down. The parallel swimming position that resulted was helpful in not stiring silt up. Unfortunately, while still functional it is beginning to come apart--to bad that. James
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