Which CCR? Understanding differences in Rebreather design.
Jon Wright explores the differences between electronically controlled CCR (ECCR) and constant mass flow (CMF) CCR (sometimes called diver controlled or manually controlled CCR) designs.
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Jon Wright explores the differences between electronically controlled CCR (ECCR) and constant mass flow (CMF) CCR (sometimes called diver controlled or manually controlled CCR) designs.
As a technical diver, what I enjoy most about teaching is demystifying the more esoteric aspects of physics, physiology, gas management and technique. We do not need to be diving to great depth in order to benefit from this increased knowledge base and in many ways, having a more thorough understanding of the what, why…
A bewildering number of options and different machines present a mass of information for the potential new CCR diver which is difficult to assimilate without some base knowledge. With this article I hope to clarify the basic operational aspects of CCR, as well as highlighting positive and negative aspects of this diving system.
At Deefer Diving we like to try new things and offer new ways to try diving. This winter we moved into the world of Closed Circuit Rebreather diving. Now diving on rebreathers is not new, the original technology pre-dates regular scuba (by about 80 years!), but with the addition of new technology the equipment is…