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

  • Sunday
    05/27/2018
  • 5:39 PM - Slack Ebb
  • 11:53 PM - Slack Flood

  • Monday
    05/28/2018
  • 4:13 AM - Slack Ebb
  • 12:07 PM - Slack Flood
  • 6:27 PM - Slack Ebb

  • Tuesday
    05/29/2018
  • 12:44 AM - Slack Flood
  • 4:43 AM - Slack Ebb
  • 12:41 PM - Slack Flood
  • 7:10 PM - Slack Ebb

  • Wednesday
    05/30/2018
  • 1:35 AM - Slack Flood
  • 5:11 AM - Slack Ebb
  • 1:16 PM - Slack Flood
  • 7:50 PM - Slack Ebb

  • Thursday
    05/31/2018
  • 2:26 AM - Slack Flood
  • 5:37 AM - Slack Ebb
  • 1:50 PM - Slack Flood

The Narrows

  • Sunday
    05/27/2018
  • 6:11 PM - Slack Ebb
  • 11:49 PM - Slack Flood

  • Monday
    05/28/2018
  • 5:11 AM - Slack Ebb
  • 12:07 PM - Slack Flood
  • 7:00 PM - Slack Ebb

  • Tuesday
    05/29/2018
  • 12:39 AM - Slack Flood
  • 5:46 AM - Slack Ebb
  • 12:46 PM - Slack Flood
  • 7:44 PM - Slack Ebb

  • Wednesday
    05/30/2018
  • 1:26 AM - Slack Flood
  • 6:19 AM - Slack Ebb
  • 1:24 PM - Slack Flood
  • 8:25 PM - Slack Ebb

  • Thursday
    05/31/2018
  • 2:11 AM - Slack Flood
  • 6:51 AM - Slack Ebb
  • 2:00 PM - Slack Flood

Current & Tide
Predictions


Current
Corrections