Calculating SAC and RMV

  • Surface Air Consumption (SAC): The amount of gas you breathe in one minute at the surface in terms of pressure (psi). SAC can be expressed as pressure (psi) or volume (cu ft).
  • Respiratory Minute Volume (RMV): The amount of gas you breathe in one minute at the surface in terms of volume (cu ft).
  • Resting SAC: The rate at which you breathe when relaxed.
  • Working SAC: The rate at which you breathe when stressed.

Gas Used (psi):


Duration (min):


Average Depth (ft):


Cylinder Size (cu ft):


Working Pressure (psi):





Admiralty Inlet

  • Saturday
    06/24/2017
  • 7:19 PM - Slack Ebb

  • Sunday
    06/25/2017
  • 1:36 AM - Slack Flood
  • 5:31 AM - Slack Ebb
  • 1:23 PM - Slack Flood
  • 8:06 PM - Slack Ebb

  • Monday
    06/26/2017
  • 2:34 AM - Slack Flood
  • 6:23 AM - Slack Ebb
  • 2:11 PM - Slack Flood
  • 8:52 PM - Slack Ebb

  • Tuesday
    06/27/2017
  • 3:34 AM - Slack Flood
  • 7:18 AM - Slack Ebb
  • 2:59 PM - Slack Flood
  • 9:36 PM - Slack Ebb

  • Wednesday
    06/28/2017
  • 4:36 AM - Slack Flood
  • 8:17 AM - Slack Ebb

The Narrows

  • Saturday
    06/24/2017
  • 7:48 PM - Slack Ebb

  • Sunday
    06/25/2017
  • 1:32 AM - Slack Flood
  • 6:21 AM - Slack Ebb
  • 1:34 PM - Slack Flood
  • 8:37 PM - Slack Ebb

  • Monday
    06/26/2017
  • 2:24 AM - Slack Flood
  • 7:14 AM - Slack Ebb
  • 2:23 PM - Slack Flood
  • 9:23 PM - Slack Ebb

  • Tuesday
    06/27/2017
  • 3:18 AM - Slack Flood
  • 8:09 AM - Slack Ebb
  • 3:12 PM - Slack Flood
  • 10:09 PM - Slack Ebb

  • Wednesday
    06/28/2017
  • 4:12 AM - Slack Flood
  • 9:08 AM - Slack Ebb

Current & Tide
Predictions


Current
Corrections