Error sources and limitations There are two sources of error on head up orientation, heading flash alignment and range. If it is your own radar, these errors should be rectified in the set up. Pilots may not have this option. Heading flash alignment On passage, the...
Adapting the technique to the radar available All radars offer head up orientation but have different features.It can be seen from the preceding images that trails and being able to offset the VRM make monitoring the turn easy. (see figures 5, 6 & 7). Some models...
Use of stabilised electronic bearing line (EBL) So far, gyro input has been excluded from this paper. In pilotage, gyro compasses are frequently observed to be in error, lag during turns and sometime just wander. Perhaps new compass technology will increase the...
North up presentation The principles of this technique can be applied in north up mode provided the offseting of the EBL and VRM are relative to the vessel. However, with both the reference point and the index moving, this method retreats from the simplicity and...
Conclusion This method of conducting controlled turns is straight forward and easy to use. The planning is simple and results in turns being defined by their radius and a reference point’s distance from the turn centre. These two values allow for a quick and simple...
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