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

  • Tuesday
    03/19/2019
  • 4:26 PM - Slack Ebb
  • 11:41 PM - Slack Flood

  • Wednesday
    03/20/2019
  • 5:44 AM - Slack Ebb
  • 12:28 PM - Slack Flood
  • 5:29 PM - Slack Ebb

  • Thursday
    03/21/2019
  • 12:30 AM - Slack Flood
  • 6:20 AM - Slack Ebb
  • 1:10 PM - Slack Flood
  • 6:29 PM - Slack Ebb

  • Friday
    03/22/2019
  • 1:18 AM - Slack Flood
  • 6:55 AM - Slack Ebb
  • 1:53 PM - Slack Flood
  • 7:26 PM - Slack Ebb

  • Saturday
    03/23/2019
  • 2:06 AM - Slack Flood
  • 7:28 AM - Slack Ebb

The Narrows

  • Tuesday
    03/19/2019
  • 5:01 PM - Slack Ebb
  • 11:52 PM - Slack Flood

  • Wednesday
    03/20/2019
  • 6:26 AM - Slack Ebb
  • 12:27 PM - Slack Flood
  • 6:04 PM - Slack Ebb

  • Thursday
    03/21/2019
  • 12:43 AM - Slack Flood
  • 7:02 AM - Slack Ebb
  • 1:12 PM - Slack Flood
  • 7:04 PM - Slack Ebb

  • Friday
    03/22/2019
  • 1:32 AM - Slack Flood
  • 7:37 AM - Slack Ebb
  • 1:56 PM - Slack Flood
  • 8:00 PM - Slack Ebb

  • Saturday
    03/23/2019
  • 2:19 AM - Slack Flood
  • 8:12 AM - Slack Ebb

Current & Tide
Predictions


Current
Corrections