Nav Comm Section 2 part2 Flashcards
What frequencies does an ELT operate at?
121.5 and 243
Where is the ELT located in the aircraft?
Near the tail, as far back as they can mount it
How long must the ELT operate after it has been activated?
48 hours by a g switch
When can an operational check of the ELT be performed?
5 Minutes before and 5 minutes after the hour
How often is the ELT battery replaced or recharged?
When it expires or one hour of time has elapsed
What are the main differences between the ELT & the EPIRB?
EPIRB is more precise up to 60 meters
What parameters are normally monitored by the FDR?
Altitude, air speed, attitude, direction, vertical acceleration, landing gear position, flight control position, engine power, Zulu time
To what length of time will a CVR record the flight deck communications?
Minimum of 30 minutes
What is the primary purpose of an autopilot installed in an aircraft?
To ease the pilots work load
What are the three types of autopilots?
Single axis ailerons ,
two axis- aileron and elevator, three axis- aileron, elevator, rudder
What are the five basic parts of an autopilot system?
Sense, output, feedback , control, computer
What is the purpose of the servos in an autopilot system?
Controls the flight controls
What is the purpose of the gyros & sensors in an autopilot system?
Senses changes in the aircraft attitude and altitude
What is the purpose of the feedback circuit in an autopilot system?
Prevent hunting, keep it at the same speed
What component in a Stability Augmentation System helps to compensate for the aircrafts tendency to “Dutch Roll”?
Yaw damper
