Techniques > Variations of Existing Techniques

Mnemonics

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Jester:
A very useful mnemonic for locating your position: DDCRAPS.
Direction- Establish NSWE, orientate your map.
Distance- How long have I travelled since my last confirmed position?
Conventional signs- can I see anything which would be represented by a conventional sign on the map?
Relief- What type of ground am I near, and how would this be shown on the map?
Alignment- Can I see two or more features which align to indicate a particular direction in relation to my position?
Proximity- Am I near/ Are there features nearby my position which I can locate on the map?
Shape- Does any feature have a distinctive shape which will help me locate it on the map?

I learned this with the army and it is a very effective way of helping to guide you when trying to establish your position.

sniperkona:
grid to mag=add
mag to grid =get rid

grid bearing to magnetic you add declination
magnetic bearing to grid bearing you take it away!!

Stu:
Hi
Similar one for terrain/feature identification
Shape
Orientation
Size
Elevation
Slope [contours]

Jester:

--- Quote from: sniperkona on November 23, 2011, 08:35:50 PM ---grid to mag=add
mag to grid =get rid

grid bearing to magnetic you add declination
magnetic bearing to grid bearing you take it away!!

--- End quote ---
But only where magnetic north is west of grid north. If GMA is east of grid north it becomes:
Grid to mag- get rid
mag to grid-add

I'm sure I have a map at home which straddles the dividing line, on one side of the sheet the GMA is west, on the other it is east. Makes resections interesting. :o

sniperkona:

--- Quote from: Jester on November 26, 2011, 10:53:48 AM ---
--- Quote from: sniperkona on November 23, 2011, 08:35:50 PM ---grid to mag=add
mag to grid =get rid

grid bearing to magnetic you add declination
magnetic bearing to grid bearing you take it away!!

--- End quote ---
But only where magnetic north is west of grid north. If GMA is east of grid north it becomes:
Grid to mag- get rid
mag to grid-add

ok then smart arse ;D

will there ever be a time when it does that in the northern hemi?


I'm sure I have a map at home which straddles the dividing line, on one side of the sheet the GMA is west, on the other it is east. Makes resections interesting. :o

--- End quote ---

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