1. Copyright 2008 Coast Guard Auxiliary Association, Inc.
The Weekend Navigator
Part II
Copyright 2008 Coast Guard Auxiliary Association, Inc.

2. Chapter 12: What To Do If the GPS Quits

3. Stop and Regroup Find your present location Use landmarks or ATONs
Use a backup GPS
Use bearings to at least two charted objects

4. Stop and Regroup Backup alternatives to find position Radar
Backward dead reckoning
Depth and depth profile

5. Plan Before Proceeding
Plot your best estimate on your chart
Examine your charted path
Be prepared to seek alternative routes

6. Navigating without GPS
Pay attention to course, speed, and elapsed time
Estimate your travel time and ETA
Know estimated travel time to known hazards

7. Navigating without GPS
Repeat process from waypoint to waypoint
Update your position from time to time using:
Dead reckoning
Landmarks
A fix