词汇与结构Simple FMS use a single sensor, generally ________in order to determine position.
A. GPS
B. NAV
C. PBN
D. SID
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词汇与结构Inertial Reference Systems (IRS) use ring laser gyros and ________ in order to calculate the aircraft position.
A. sensors
B. transmitters
C. receivers
D. accelerometers
词汇与结构The FMS constantly ________ the various sensors and determines a single aircraft position and accuracy.
A. multiple-checks
B. double-checks
C. crosschecks
D. triple-checks
词汇与结构________ provides roll steering command to the autopilot and VNAV provides speed/altitude targets to the autopilot.
A. LNAV
B. VNAV
C. NAV
D. RNAV
词汇与结构Each contains a gyro rotor driven by air or electricity and each makes use of the gyroscopic _____to display the attitude of the aircraft.
A. principals
B. principles
C. positions
D. process