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The Time-Distance Radar Plot

Published online by Cambridge University Press:  18 January 2010

R. d'E. Atkinson
R. d'E. Atkinson
Affiliation:
(Royal Greenwich Observatory)
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Extract

Dr. Atkinson here proposes a type of radar plot which was not actually considered in the Institute working party's recent report. It would be useful to have some comment, particularly from sea, on the effectiveness of this type of plotting.—Ed.

The current discussions on radar plotting at sea appear to have rather overlooked one plot which may have quite important advantages: this is the pure time-distance plot, ignoring bearings almost completely. One would use ordinary squared paper (say quarter-inch squares or some similar coarse mesh), with distance increasing upwards, time increasing to the right, and both scales permanent ones; pre-printed scales would be useful, but not essential of course, and one might suggest an inch to a mile and an inch to four minutes.

Type
Research Article
Information
The Journal of Navigation , Volume 8 , Issue 3 , July 1955 , pp. 211 - 218
Copyright
Copyright © The Royal Institute of Navigation 1955

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References

REFERENCES

1 Plotting as an aid to the avoidance of collision at sea (an Institute working party report, 1954). This Journal, 7 219.Google Scholar
2 See this Journal, 7, 202, 307, 397, 8, 70, 72.Google Scholar
3 See this Journal, 8, 131.Google Scholar