one

Three

Two

Four

2 and 4

1 and 3

2 and 3

1 and 4

By setting the INS mode selector to "ALIGN" and then flying straight and level with NO airspeed variations for

By setting the INS mode selector to "ALIGN" and waiting for the required time.

By setting the INS mode selector to "GPS" and realigning the INSARS through the GPS.

It can NOT, the aircraft must be stationary on the ground for alignment to be performed.

can operate as stand alone equipment without any interface with other navigation equipment.

can only operate when interfacing with the GPS equipment

can only operate when interfacing with the radionavigation equipment.

can only operate when communicating with ground installations.

position and attitude.

attitude and ground speed

attitude and heading

heading.

one degree of freedom, and an automatic erection system attempts to align its rotor spin axis to the local

one degree of freedom, and an automatic erection system attempts to align its rotor spin axis with the

 two degrees of freedom, and an automatic erection system attempts to align its rotor spin axis to the local

two degrees of freedom, and an automatic erection system attempts to align its rotor spin axis with the

decreasing RPM and concentrating the mass at the hub of the rotor.

decreasing RPM and concentrating the mass on the periphery of the rotor.

increasing RPM and concentrating the mass at the hub of the rotor.

increasing RPM and concentrating the mass on the periphery of the rotor.

is static in time.   

is static in time with respect to the geographical poles.   

is the same as the geographical poles.   

periodically wander (as much as 15 km every year).   

The movement of the gyro spin axis along the horizontal plane.

The wander caused by movement of the aircraft.

The movement of the gyroscopic position about the vertical axis as observed by a person standing on the

The shift in position caused by imperfections in the design of a gyroscope.