SAR Fundamentals/Navigation/Map/Triangulation

Authors
Brett Wuth

Scope

 * SAR Fundamentals Manual: Ch.13 "Navigation"
 * Basic SAR Skills Manual: Ch.7 "Navigation"

Prerequisites

 * Students know how to find UTMs and the bearings between them on a topo map
 * Students can recognize hills, water courses, and cutlines on a topo map

Objectives
At the conclusion of this lesson the participants:
 * 1) will be able to ...

Time Plan
Total Time: 45 minutes
 * 2013-02: 44 min

Introduce topic title

Introduce Instructor

Present Objectives

Notion of a bearing from a linear feature:

''You are on the left bank of the Castle River. You spot the Carbondale Lookout Tower at a bearing of ... degrees True North. Where are you?''

Examples are listed in Samples in aids section.


 * discuss left vs right bank

Notion of a bearing from a straight line feature:

''You are on the cutline from UTM ... to UTM ... . You spot the Carbondale Lookout Tower at a bearing of ... degrees True North. Where are you?''

Examples are listed in Samples in aids section.

Notion of two bearings:

''You see the top of the hill at UTM ... at a bearing of ... degrees True North. You also spot the Carbondale Lookout Tower at a bearing of ... degrees True North. Where are you?''

Examples are listed in Samples in aids section.


 * discuss which examples were easier, more accurate.


 * Best points to triangulate are 90 degrees apart.


 * draw intersections of error arcs.

Aids

 * 82G/8 for each pair of students
 * plenty of table space
 * overhead projector
 * screen
 * slides of topo maps
 * a compass for each pair of students
 * pencil for each student
 * map quality eraser for each pair
 * /Samples

Question bank
See

License
Copyright © 2012, Brett Wuth. This work is licensed under a Creative Commons Attribution-NonCommercial 2.5 Canada License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/2.5/ca/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.

Reference Material
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