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

  • Thursday
    11/15/2018
  • 4:45 AM - Slack Flood
  • 11:15 AM - Slack Ebb

  • Friday
    11/16/2018
  • 5:44 AM - Slack Flood
  • 12:00 PM - Slack Ebb
  • 8:33 PM - Slack Flood
  • 11:12 PM - Slack Ebb

  • Saturday
    11/17/2018
  • 6:46 AM - Slack Flood
  • 12:41 PM - Slack Ebb
  • 8:53 PM - Slack Flood

  • Sunday
    11/18/2018
  • 12:52 AM - Slack Ebb
  • 7:46 AM - Slack Flood
  • 1:19 PM - Slack Ebb
  • 9:17 PM - Slack Flood

The Narrows

  • Thursday
    11/15/2018
  • 4:48 AM - Slack Flood
  • 11:57 AM - Slack Ebb
  • 6:27 PM - Slack Flood
  • 10:40 PM - Slack Ebb

  • Friday
    11/16/2018
  • 5:47 AM - Slack Flood
  • 12:47 PM - Slack Ebb
  • 7:23 PM - Slack Flood

  • Saturday
    11/17/2018
  • 12:06 AM - Slack Ebb
  • 6:50 AM - Slack Flood
  • 1:31 PM - Slack Ebb
  • 8:13 PM - Slack Flood

  • Sunday
    11/18/2018
  • 1:32 AM - Slack Ebb
  • 7:51 AM - Slack Flood
  • 2:12 PM - Slack Ebb
  • 8:57 PM - Slack Flood

Current & Tide
Predictions


Current
Corrections