Thread: A geodetic task with a Garmin handheld

Mark point (1) and determine course (1) onto Oil Platform. Go to next point on the shore and go to mind course (3) and distance to it from point (1). Mark point (2) and determine course (2) onto Oil Platform in it. Switch to calculator and resolve triangulation task with known value. Make the projection of Oil Platform point and see coordinate for it. More points would give more precision result...

Another way determine course onto Oil Platform. Then correlate three value for distance: the height of device, the length extended hand this handheld, the height of something on Oil Platform (people, helicopter, safety boats...) . And again math, math and math...

Something even easier that requires no math or any devices other than the Garmin GPSr:

Mark a position along the beach and save as waypoint (A).

Standing at waypoint (A), use Sight 'N Go to project a waypoint in the direction of the oil rig, selecting a distance that is clearly well beyond the oil rig. Save as waypoint (B).

Move down the beach as far a distance as possible, and save as waypoint (C).

Standing at waypoint (C), use Sight 'N Go to project a waypoint in the direction of the oil rig, selecting a distance that is clearly well beyond the oil rig. Save as waypoint (D).

Now, open the Route Manager application and select Create Route. Create a Route starting at waypoint (A), to waypoint (B), to waypoint (C), and finally finish at waypoint (D).

View the selected route on the Map screen of your Garmin GPSr, and zoom in where the route crosses over itself (near the center).

Mark a new waypoint (E) at this intersection.

Waypoint (E) is the approximate location of the oil rig.


Do I win a prize?