The different types of BCD's
Roughly there are 3 different types of Buoyancy Control Devices. The traditional or normal BCD, the Semi Wing and the Wing.
Main purpose of all BCD's
The main purpose of all Buoyancy Control Devices are:
- Provide Buoyancy at the surface
- Provide points to attach objects (like an octopus)
- Give you the possibility to adjust your buoyancy when under water
- Provide space and straps fix your tank on the back
The three different types in images
- Traditional
- Semi-wing
- Wing
Differences
The major difference between the three types is the location where the air is stored. With traditional jackets most of the air is stored on the sides. When fully inflated it often gives you pressure on the hips.
With a semi wing part of the air is stored on the sides of the jackets and the rest is stored on the back around the air tank(s). This will reduce the pressure on the hips when fully inflated.
The wing stores all the air on the back and therefore you won't feel added pressure when on your hips when fully inflated.
Most of the jackets nowadays have a fully weight integrated system. This means that you can store the weight in specifically designed weight pockets which fit again in the jacket. This weight system has a quick release system, that enables you to easily drop your weights if necessary.
Male or Female?
Everybody is aware of the physical differences between male and female. Many manufacturers of BCD's now offer both a male version and a female version of their buoyancy control devices. Can you spot the difference?
- Female BCD
- Male BCD
