SAR Fundamentals/Compass practical and pacing
From PCSAR
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- currently moving north about 40 km / year | - currently moving north about 40 km / year | ||
| - | + | Magnetic declination for Pincher Creek, 2010: 14deg 58' E. | |
| - | + | according to | |
| + | http://geomag.nrcan.gc.ca/apps/mdcal-eng.php | ||
| - | + | * Adjusting declination on compass | |
3/ shooting a bearing with a compass | 3/ shooting a bearing with a compass | ||
Revision as of 22:45, 18 March 2010
- SAR Fundamentals Manual: Ch.13 "Navigation"
- Basic SAR Skills Manual: Ch.7 "Navigation"
Aids
Outline
Material Covered:
Navigation - section 3 - compass use and exercise
Objective:
* know cardinal directions
* know compass degrees
* know what affects a compass
* magnetic declination
* shooting a bearing with a compass
* pacing
* exercises: bearings
pacing / bearing
* backbearing
* offsets
Duration: 2 hours 15 minutes
Aids:
SAR Fundamentals - Chapter 13 - Navigation Tape Measure Slides:
Plan:
1/ Review past material
Give sample UTMs, find elevation Give sample UTM pairs find bearing relative to True North
2/ discuss Magnetic Declination
Where needle points
Reading declination from map (add grid N)
North pole moves
- currently moving north about 40 km / year
Magnetic declination for Pincher Creek, 2010: 14deg 58' E. according to http://geomag.nrcan.gc.ca/apps/mdcal-eng.php
- Adjusting declination on compass
3/ shooting a bearing with a compass
using compass
- avoid metal
- avoid magnetic fields
holding compass sighting
reading bearing
walking a bearing
- how far to look
4/ Pacing
slide: step vs. pace
counting your pace
calculating distance from paces
calculating paces from distance
5/ Exercises: bearings
hand-out: Pacing and Traverse
