BASIC NAVIGATION ROYAL AIR FORCE POWERPOINT

BASIC NAVIGATION ROYAL AIRFORCE

1. Basic NavigationBasic Navigation
Lesson 1Lesson 1
ACP32 Vol2ACP32 Vol2

2. Basic Nav.Basic Nav.
By the end of this powerpoint you should By the end of this powerpoint you should
know:know:
Some ways to find NorthSome ways to find North
How to set your mapHow to set your map
The different “Norths”The different “Norths”

3. Finding North JFinding North J
The Pole StarThe Pole Star
This star indicates North in the Northern hemisphere.This star indicates North in the Northern hemisphere.

4. Finding North NFinding North N
Shadow MethodShadow Method
Use the shadow cast by a stickUse the shadow cast by a stick

5. Finding North JFinding North J
Wristwatch MethodWristwatch Method
Hold the watch flatHold the watch flat
Point the hour hand at the sun. Point the hour hand at the sun.
Clockwise between the hour hand and 12 is North.Clockwise between the hour hand and 12 is North.
(In BST use 1 instead of 12)(In BST use 1 instead of 12)

6. Setting the Map NSetting the Map N
This is done to easily relate This is done to easily relate
features on the map to the features on the map to the
physical environment.physical environment.
Find a common feature Find a common feature
such as a waterway, road, such as a waterway, road,
path or geographical path or geographical
feature on both the map feature on both the map
and the real world. and the real world.
Turn your map until the Turn your map until the
features line up.features line up.

7. The “Norths” NThe “Norths” N
There are three “Norths”There are three “Norths”
1, Magnetic North – Compass1, Magnetic North – Compass
2, Grid North – Map2, Grid North – Map
3, True North – Earth (the real one)3, True North – Earth (the real one)

8. The “Norths” NThe “Norths” N
As seen on OS maps

9. The “Norths” NThe “Norths” N
VarianceVariance
The Magnetic North Pole does not coincide with True The Magnetic North Pole does not coincide with True
North. It is approximately 5 degrees to the west and North. It is approximately 5 degrees to the west and
moves a little every year.moves a little every year.
The details of variances are on every OS map in the The details of variances are on every OS map in the
margin.margin.
The GMA Grid Magnetic Angle. This is the difference The GMA Grid Magnetic Angle. This is the difference
between north on your map and north on your compass.between north on your map and north on your compass.
Why do you need to know this?Why do you need to know this?
Answer: So the compass can be “calibrated” for use with Answer: So the compass can be “calibrated” for use with
the map. the map.

10. The Design Challenge JThe Design Challenge J
In pairs, or groups of 3In pairs, or groups of 3
You have 5 minutes to build a bridge from You have 5 minutes to build a bridge from
one table to another but following a series one table to another but following a series
of rules.of rules.
Once your bridge has been constructed, it Once your bridge has been constructed, it
will be tested using a series of different will be tested using a series of different
objectsobjects
Good luck!Good luck!