M13-4 INS

identify the 3 components labeled on the INS Platform.

f

g

h

Pitch Gimbal

Azimuth transmitter

X Accelerometer

X-Z Gyro

Pitch Torquer

Y Accelerometer

X-Y Gyro

Z Accelerometer

On the INS mechanical platform why are there 4 gimbals?

• to prevent the platform from locking up

• to allow for 4 degrees of movement

• to keep the platform aligned to the horizon

• to allow for Coriolis correction

what is the formula for angular velocity?

which corrective factor is due to movement across lines of longitude?

• Rate of transport

• Earth’s rate of rotation

• Coriolis effect

• Earth’s anomalies

which corrective factor is affected by what line of latitude you are on?

• Rate of transport

• Earth’s rate of rotation

• Coriolis effect

• Earth’s anomalies

What does the INS computer use the rate of tilt to calculate?

Select one or more answers

• Degrees of lattitude

• True HDG (horizontal)

• Magnetic HDG (Horizontal)

• Degrees of longitude

What would cause the batt annunciator to illuminate?

• Loss of primary power, system operating on battery

• Loss of primary power and battery power

• Loss of battery power, system operating on primary power