0|Flat|
1|N|
2|NE|
3|E|
4|SE|
5|S|
6|SW|
7|W|
8|NW|
10|Flat NCA|
11|N NCA|
12|NE NCA|
13|E NCA|
14|SE NCA|
15|S NCA|
16|SW NCA|
17|W NCA|
18|NW NCA|
