Blackwood
Contributor
Hillmorton Scubie:So whats the difference between a BC/BCD and a Wing ?
A wing is just a bag that carries air. A BC/BCD is something that you wear that includes an air bladder (a.k.a wing, though the term 'wing' is generally used to describe an air bladder that is removable).
First picture = BCD (note that the air bladder is a net part of the rig)
Second picture = wing