Chapter 9 : Pilot Navigation - 1 : 60 Rule Flashcards
1
Q
360 degrees subtends an arc of circumferance -
A
2 π R
2
Q
What is 1 : 60 rule?
A
At a Radius / Range ‘R’ = 60 units - An angle of 1 degree subtends an arc of circumference of 1 unit.
At a Radius / Range ‘R’ of 60 units - An angle of x degrees subtends an arc of circumference of x units.
Not Applicable to angles greater than - 20 degrees
3
Q
1 : 60 rule NOT applicable to angles greater than -
A
20 degrees.
4
Q
Maths (Tan) Approach to 1 : 60 rule -
A
Tan (Angle) = Dist. Off Track / Radius or Range
5
Q
What is Track Error?
A
It is angle between Planned Track and Actual Track
6
Q
Is Track Error = Drift?
A
No.
Track Error - Angle between Planned Track and Actual Track
Drift - Measured between Heading and Track.
