Nav Systems

Question 1

Cartesian co-ordinates

Answer 1

This is a 2 or 3-dimensional system used to pin point an A/C’s position in a Northings and Eastings format

Question 2

Groundspeed

Answer 2

The speed of the aircraft along the track vector

Question 3

Polar coord

Answer 3

This is a 2-dimensional system where an A/C’s position is determined by a vector quantity and an angle

Question 4

Drift angle

Answer 4

The angular difference between the A/C heading and track

Question 5

Heading

Answer 5

Direction of the A/C LFD relative to North

Question 6

Secant correction

Answer 6

1/cos(latitude)