I've been wondering why jacket style is by far the most common. I understand that dive shops carry them more sell more of them etc. Shops carry them because they are the common/popular.
What I'm trying to understand is why are the jackets the most common, how did they become the most common
They are more popular because jacket style or integrated BCs are the bread and butter high profit margin product (along with snorkels) for the LDS. LDS stock them and force feed them and truthfully most LDS have no real knowledge of modular concept wings or back plates. But to some extent I see the same kind of "think" fixation with the wing/BP in that most such users of them dive single tanks yet they use a clunky metal plate that was designed originally to support a twin set.
As well, jackets are promoted at least at some level, if only subconscious or inference, that they are SAFE and this causes all sorts of warm and fuzzy feelings that the words "safe" and "secure" usually generate. They are promoted as life vests. And since, as a swimmer, when I observe most other divers, I would class most of them as non swimmers. So why would they not want a life jacket? Even though a BC is not a life jacket, is not designed to be a life jacket, is not certified or CGA as a life jacket and only a horse collar will reliably (possibly) float an unconscious diver face up. And despite all the blather about wing/BP systems, they absolutely will not float an unconscious or incapacitated diver face up. Nor will most jacket style BCs but what they will do that a wing/BP cannot, is lift the head and chest higher from the water as long as the diver is conscious enough to provide stability or input to augment the position.
I was trained originally, no BC, none, nada, zip, zero. So I have only been a reluctant user of any type BC. I have never owned a BC jacket and have only used one in total for a couple of dives at most. I have either used none, a horse collar type or a wing. The most ideal BC on the surface is the horse collar, the most ideal BC underwater is the wing, everything else fits somewhere in between the two end points. The wing/BP facilitates good trim and horizontal positioning in the water. Some of the back inflate systems do so nearly as well. And have the same deficits, like face planting the diver on the surface.
As discussed repeatedly in other threads, most divers today are travel divers and these travel divers, the bulk of them, are getting older and grayer by the day. And us older divers like simple things that work and are not heavy so that our resort porters and DMs do not have to break a sweat toting them around for us. Clunky, heavy, metal plates with big, heavy D-rings and metal buckles and all that with weight belts just are not the idea such a diver has in mind to tote around the airport and between customs. And who would want that cold, ugly sheetmetal plate with thumbscrews poking out the bottom up against their easily bruised skin or tearing a hole in their new rash guard, not me! At least once to the resort I can have a tropical drink and have somebody else rig and carry the contraption for me
. I am gonna have to tip them anyways so I might as well get some work out of them for it.
N