Navigation Flashcards

(9 cards)

1
Q

What is a map?

A

A map is a portion of the earth’s surface drawn to scale showing natural and man made features.

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2
Q

The following maps are commonly used in ACTF&R

A

Street Directory
Area maps
Hydrant maps
Block and Section maps
Bushfire IAP’s
Bush Fire Pre-Suppression Resource Atlas
ESA Capital Region Operational Atlases

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3
Q

How maps help firefighters?

A

Select fastest, safest most reliable route

Route planning:
Traffic conditions
Road conditions
Traffic controls
Terrain, features enroute

Select equipment appropriate to terrain

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4
Q

Magnetic variation

A

Correct for 2003 and moves East <0.010 per annum

Calculate the variation since it was taken:
2025 - 2003 = 22 years
22 x 0.01 = 0.22o East (movement since 2003)
Negligible variation

Determine the current variation:
13.4 + 0.22 = 13.620 E

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5
Q

Converting grid to compass

A

Grid to Magnetic Subtract (Grand Ma’s Socks)

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6
Q

Converting compass to grid

A

Magnetic to Grid Add (My Great Aunt)

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7
Q

Useful apps

A

Google maps
Firemapper
Avenza Maps

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8
Q

What are eastings ?

A

Vertival lines that run bottom to top or North to South

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9
Q

What are Northings?

A

The horizontal lines on a map which run left to right or East to West

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