Earths Magnetic Field
Earth acts like a giant magnet because of iron and metals in its
What is core?
The magnetic compass is required as a backup and cross-check instrument.
What is backup?
Variation is the difference between
What is true north and magnetic north?
The three primary gyroscopic instruments are
What are attitude indicator, heading indicator, and turn coordinator?
Two important gyro principles are rigidity in space and precession.
What is space and precession?
The floating card inside a magnetic compass is marked in
What is Flux Lines?
Inside the compass is a floating ____ marked in degrees.
What is Compass Card?
Lines showing equal magnetic variation on charts are called
What is Isogonic Lines?
The attitude indicator shows
What is Pitch and Bank?
Gyros must spin extremely fast, about
What is 15,000 RPM?
A magnet will naturally align itself with Earth’s
What is Magnetic Field?
The compass card floats in ___ to dampen movement.
What is kerosene (liquid)?
Isogonic lines are printed in this color on sectional charts.
What is Magenta?
The heading indicator shows the direction the aircraft is
What is heading(pointed)?
A force applied to a gyro causes deflection in
What is 90° in the direction of rotation?
Magnetic poles are not located in the same place as ___ poles and can change over ___.
What is geographic poles?
The reference line showing aircraft direction is called
What is Lubbing Line?
If variation is east, pilots ____ it from true course.
What is subtract?
The turn coordinator measures rate of turn in
What is degrees per second?
Vacuum systems power the
What is the attitude indicator and heading indicator?
Magnetic flux lines run between the
What is North and South magnetic poles?
The magnets in the compass align with Earth’s
What is magnetic flux lines?
If variation is ____, pilots add it to true course.
What is West?
The inclinometer shows
What are coordinated, slipping, or skidding flight?
A common cause of gyro failure is
What is vacuum pump failure?