BR 2806 UK MILITARY DIVING MANUAL ⏭

BR 2806 UK MILITARY DIVING MANUAL ⏭ Download ✶✶✶ DOWNLOAD               BR 2806 UK MILITARY DIVING MANUAL The 30 Fathom threshold, which is still used today, is a routine test diving depth for naval divers to achieve. To understand what this means, consider that at 30 fathoms (300 metres), you would have to stop breathing and hold your breath for thirty seconds. This means that the maximum diving depth at which divers can make reasonable progress is 300 metres. After that the limits of human capability are tested beyond a point where we are…