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The graph and table below show the amount of positional error introduced into your walking by an incorrectly-set compass. For example, let's say you're planning to travel 500 metres cross-country (the green line on the graph) on a compass bearing. If your compass is five degree out (horizontal axis) then you will be just under 50 metres off-target at the end of the segment. Over 1000 metres (red line) with an error of 12 degrees you will be about 220 metres out of position..
|
Distance Travelled (metres) |
C
o
m
p
a
s
s
E
r
r
o
r
d
e
g |
|
250 |
500 |
750 |
1000 |
| 0.50 |
2 |
4 |
6.5 |
9 |
| 10 |
4.5 |
9 |
13 |
17 |
| 1.50 |
6.5 |
13 |
19.5 |
26 |
| 20 |
8.5 |
17 |
26 |
35 |
| 30 |
13 |
26 |
39 |
52 |
| 40 |
17.5 |
35 |
52.5 |
70 |
| 50 |
22 |
44 |
65.5 |
87 |
| 60 |
26.5 |
53 |
79 |
105 |
| 80 |
35
|
70 |
105.5 |
141 |
| 100 |
44 |
88 |
132 |
176 |
| 120 |
53 |
106 |
159.5 |
213 |
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