вот умные люди написали :
Back inflation style ----. All of the buoyancy is carried behind the diver around the cylinder.
This helps to
provide a very stable and horizontal position underwater with less drag than a jacket style. On the surface, even with a fully inflated BCD, there is no feeling of squeeze.
However, there is a tendency for the BCD to roll the diver forward.
After a few minutes of practice, most divers can find the new balance point and it’s not much of a problem.
Jacket style ----. The air bladder not only goes around the cylinder in back, but also around the sides of the BCD.
This provides a
very stable and upright position on the surface , but can tend to roll the diver around under water, especially if over-weighted.
Also, when fully inflated on the surface, it can give the diver a feeling of being squeezed.
:141:
а вы говорите : орех ... подольше не пукать ... :beer_1:
Это сообщение отредактировал Vlad - 17/10/10, 20:02