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navegator wrote:
Yes a sextant is advisable, preferably a bubble sextant they work better on land.
I use mine after a few cervezas.
I also make an X on the ground, X always marks the spot where you are and on the map, that way I know where I am.
navegator
โMar-19-2015 01:44 AM
โMar-18-2015 03:50 PM
โMar-18-2015 01:32 PM
โMar-18-2015 01:06 PM
navegator wrote:Would a sextant help ????:@
Navigation 101
Tools
1. pencil. Yes they exist
2. eraser. To delete above mistakes
3. note book or paper to preserve data
4. map(s). With scale and latitude and longitude and having a scale for miles and kilometers
5. one good compass, the ones used to draw circles on paper, preferably one with two points
Place map on table
with compass in hand look for the distance scale, it looks like a hair comb and has how many miles it covers sometimes it is on the bottom on one corner and or on the legend and other times it will be on the back side
take compass and place one leg on the zero of the scale, open the compass so that the other leg is at the distance that you want to use
if the route you are taking is fairly straight you can use a big scale, if it is in mountain terrain use a smaller distance
take the compass to the starting point, place the compass on the map and carefully lift the leg at the starting point and swing it towards the route or line that represents the road you are going to travel, set the leg down and swing the other leg around until it is on top of the road line
Continue doing this until you have counted the miles that you want to travel
it is not very accurate, because you are not travelling in a straight line but you need to use the smallest distance to compensate for curves and switch backs when traversing in mountain terrain, it is a lot simpler in flat land and relatively straight roads.
Good maps are always printed to a given scale, do not use tourist type maps that that show the attractions and have bunch of advertisements on the edges, most are not printed to scale.
I hope that this info is helpful, it is basic but useful, when all else fails and you do not have power or access to the internet, you can even use your fingers as a crude compass and walk on the chart.
navegator
โMar-18-2015 10:26 AM