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some basic navigation
before you start you are now ready to set off towards your destination (or attack point) using the above techniques as well as those described elsewhere on this site (measuring time and distance)
Attack point
Handrails
Ticking off features Catching feature
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Some harder techniques involving the use of a compass
Walking on
a Bearing
Aiming off
Back-bearings 1) to check if you are still walking on the correct bearing. For instance if you set off from a gate on a bearing and could not line up anything, when you get so far, turn round and line up the compass with the gate, to make sure you are on course. This is rare, as you can nearly always find something ahead of you to line up with. 2) it can also be used to return along your original route. Just turn the compass housing around 180° use the white end of the needle instead of the red.
Resections (sometimes called Triangulation or cocked Hat) You will need to accurately be able to identify two or three features from your current position. Once you have identified these features, plot the bearing from them back to you onto your map. Your position is where the lines intersect.
If you use three points the resection will form a triangle and the theory is that you will be in the
middle of the triangle. Using three points is much more accurate than using two, the degree of accuracy of a resection should (with practice) be around a hundred meters) It is important to know exactly where you are for a number of reasons. Firstly to see if you are in the right place and heading in the correct direction, to tell if you are ahead or behind time and secondly to tell the emergency services the exact position of an injured party in an emergency.
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Other techniques
Navigating at Night or in Bad Weather
Contouring
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Difficult decisions
Over or around? |
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