Trigonometry in navigation pdf
- how is trigonometry used in navigation
- how is trigonometry used in gps
- how is trigonometry used in satellite systems
- how is trigonometry used in real life
How is trigonometry used in construction.
How is trigonometry used in architecture
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In marine navigation, a bearing is the direction one object is from another object, usually, the direction of an object from one’s own vessel. In aircraft navigation, a bearing is the actual compass direction of the forward course of the aircraft.
In land navigation, a bearing is the angle between a line connecting two points. Bearings is usually measured in degrees.
Types of bearings include:
•True bearings/ Three-figure bearings
•Magnetic bearings
•Compass bearings
•Grid bearings
Trigonometry in action
A plane leaves an airport and flies 600 km on a bearing of 145°
a)How far south of the airport is the plane?
Let x = distance south and missing angle in SAP = 35°
Cos 35° = x
600
x = 600 cos 35°
x = 491 Km
Therefore the plane is 491 km south of the airport
b) What is the three-figure bearing of the airport from the plane?
A compass rose is drawn at the position of the plane.
NPA = 35° (alternate)
Therefore the bearing of the airport from the plane is 360°- 35° = 325°
Navigation without trigonometry
Without Trigonometry the
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