Exam Review: Gyro Instruments Flashcards
What are the 3 basic gyro instruments?
Turn Coordinator
Directional Gyro
Attitude Indicator
What are some facts about the Turn Coordinator?
Uses precession
• semi-rigidly mounted
• Single gimbal = 1 axis
• Indicates rate of turn
What are some facts about the Directional Gyro?
FREE mounted
Rigidity establishes REFERENCE plane
Precession maintains spin axis on HORIZONTAL plane
Ref. to MAGNETIC north
What are some facts about the Gyro Horizon?
FREE mounted
Rigidity = ref. plane
Precession = VERTICAL spin axis
PITCH and ROLL attitude
What type of instruments measures RATE of rotation about the VERTICAL axis?
Turn Indicators
What are the 2 types of Turn Indicators?
Turn and Slip
Turn Coordinator
What do both Turn Indicators contain?
Slip/Skid Ball
Internal Rate Gyro
The turn indicator portion of the instrument depends on what?
Precession of the gyro
Slip/Skid indicators are also called what?
Inclinometer
The indicator identifies a skid, what is happening?
The rate of turn is too great for the angle of bank (too fast)
If the rate of turn is too slow, what is it called?
SLIP
What is the limit of the Turn and Slip Indicator?
only senses YAW
What allows the Turn Coordinator to sense roll and yaw?
gyro canted 30 degress
Which 2 instruments are double gimbled?
Directional Gyro
Attitude Indicator
What instrument has a spin axis that is HORIZONTAL and the rotor spins at a VERTICAL?
Directional Gyro
What does the knob on the Directional Gyro do?
Locks the gimbals so the compass can be manually realigned
Spring Loaded, thus disengaging right away
What shows the heading of the aircraft?
Lubber Line
When poor visibility exists, what instrument do we go to?
Attitude Indicator
The Attitude Indicator has its spin axis?
Vertically
What precess’ the gyro to the vertical if it is displaced?
Pendulous vanes and air jets
Difference between Electric Attitude Indicator and Attitude Indicator?
small electric motor is the rotor
A warning flag will be in view on the EAI when?
Electrical Power Loss
What instrument added command bars and provides visual steering to the pilot?
ADI
How much rpm does a gyro normally operate at?
20,000 - 24,000
After powering down what must you not do?
don’t handle the gyro for 20min
