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Flashcards in Aviation Charts Deck (9)
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1
Q

Define scale of a chart -

A

Scale is the ratio of the length of a line drawn on a chart to the corresponding distance on the surface of the earth.

2
Q

Scale =

A

Chart length / Earth Distance

3
Q

The units of a chart can either be?

A

inches or centimeters

4
Q

The scale of a chart varies with -

A

Latitude

5
Q

1 nautical mile to centimetre?

A

185 300cm

6
Q

If the scale of a chart is expressed as(in centimetres) =

2 : 5 nautical miles

What is the chart scale as a representative fraction?

A

the expression states that 2cm on the chart = 5 nautical miles.

5 x 185 300 = 926 500

926 500 / 2

= 463 250

= 1:463 250

7
Q

1 inch = how many centimetres?

A

2,54cm

8
Q

when using the CL / ED formula. The two units should be -

A

the same( inch or centimetre)

9
Q

between these two charts, which has the smaller scale?

A: 1: 250 000

B : 1: 300 000

A

chart B.

Picture a larger scale as more detail, I.E larger picture