magnetic compass power point presentation j wilde
DESCRIPTION
UNDERSTANDING OF MAGNETIC COMPASSTRANSCRIPT
C o m p a s s
Lesson 1 Information provided by ships compasses
Lesson 2 Causes and nature of magnetic compass error
Lesson 3 Limitations of the gyro compass
Lesson 4 Functions & components of steering systems
Lesson 5 Various forms of steering information
M a g n e t I s m
• First Law of Magnetism:
• Like Poles Repel
• Unlike Poles Attract
• The North Seeking Pole is the RED Pole
I n a c c u r a c I e s
• Near the magnetic poles• Near magnetic anomalies• Damage to binnacle• Damage to ship• Air bubbles touching compass card• Lubber line misaligned• Lightning strikes