1.6  Place a Minimum of Two Waypoints

If you do not plan to use a chart, you will need to place the waypoints in the field. You can skip this step and continue at step 2 - On Site Operations.

Using the chart as a reference, place a waypoint at the beginning of the extents of the pier wall to be inspected and a second at the end of the extents of the section to be inspected. The distance from the pier wall will depend upon the expected visibility as previously noted. This distance is not critical and is just a starting reference at this point. The actual operational distance can be adjusted in the field based on the observed conditions.

If the pier wall is not straight, additional waypoints should be placed so that they approximate the shape or curvature of the pier using straight segments. You can place as many additional waypoints as necessary.