Boxing the compass is the action of naming all thirty-two principal points of the compass in clockwise order.
|
Navigational compass |
|||
|
No |
Compass point |
Abbreviation |
True Heading |
|
1. |
North |
N |
0.00° |
|
2. |
North by east |
NbE |
11.25° |
|
3. |
North-northeast |
NNE |
22.50° |
|
4. |
Northeast by north |
NEbN |
33.75° |
|
5. |
Northeast |
NE |
45.00° |
|
6. |
Northeast by east |
NEbE |
56.25° |
|
7. |
East-northeast |
ENE |
67.50° |
|
8. |
East by north |
EbN |
78.75° |
|
9. |
East |
E |
90.00° |
|
10. |
East by south |
EbS |
101.25° |
|
11. |
East-southeast |
ESE |
112.50° |
|
12. |
Southeast by east |
SEbE |
123.75° |
|
13. |
Southeast |
SE |
135.00° |
|
14. |
Southeast by south |
SEbS |
146.25° |
|
15. |
South-southeast |
SSE |
157.50° |
|
16. |
South by east |
SbE |
168.75° |
|
17. |
South |
S |
180.00° |
|
18. |
South by west |
SbW |
191.25° |
|
19. |
South-southwest |
SSW |
202.50° |
|
20. |
Southwest by south |
SWbS |
213.75° |
|
21. |
Southwest |
SW |
225.00° |
|
22. |
Southwest by west |
SWbW |
236.25° |
|
23. |
West-southwest |
WSW |
247.50° |
|
24. |
West by south |
WbS |
258.75° |
|
25. |
West |
W |
270.00° |
|
26. |
West by north |
WbN |
281.25° |
|
27. |
West-northwest |
WNW |
292.50° |
|
28. |
Northwest by west |
NWbW |
303.75° |
|
29. |
Northwest |
NW |
315.00° |
|
30. |
Northwest by north |
NWbN |
326.25° |
|
31. |
North-northwest |
NNW |
337.50° |
|
32. |
North by west |
NbW |
348.75° |
Before the Magnetic Compass was discovered, early map makers would draw a small 16 pointed circle on the map, and place an “N” to point to North. These were the 16 Cardinal Points from which the winds were thought to blow. This drawing was called a “Wind Rose.” When the magnetic compass came along, it was usually set on top of the Wind Rose pattern in order to help face the nautical chart in the proper direction. The wind rose started to become known as a COMPASS ROSE.
Since the 1100’s, compass bearings have been split into 16 different directions:
- North – North North East – North East – East North East – East
- East – East South East – South East – South South East – South
- South South West – South West – West South West – West
- West North West – North West – North North West – North
This was all the accuracy a Mariner’s Compass had to offer then. By today’s standards, it was not very accurate. As spherical mathematics improved, it became more customary to give bearings in units of “Degrees” from Geographic North. In the 1920’s, it became an accepted practice to indicate direction, called HEADING or BEARING, by a single number (0 to 360) representing degrees of a circle as measured clockwise from True North.
The development of the compass instrument itself represents quite an achievement, however the actual use of this instrument is more of an art form. The Compass is not by any means a complex instrument. Anyone from 9 to 90 should be able to learn compass operation with just some practice and understanding a few simple principles.
