cessna-172-training-supplement

maximum smoothness. Carburetor heat also serves as an alternate induction air
source, in case of blockage of the primary engine air intake.
NOTE: Partial carburetor heat may be worse than no heat at all,
since it may melt part of the ice, which will refreeze in the intake
system. Therefore when using carburetor heat, always use full
heat and when the ice is removed, return the control to the full
cold position.
NOTE: Additional aircraft systems information can be found
in Section 7 of the Cessna 172 Pilot's Operating Handbook,
available in the ATP Training Library and ForeFlight Documents.
ATP training videos reviewing this material are available on the
Ground School Support Videos page.
Garmin G1000
Some Cessna 172s are equipped with the Garmin G1000 electronic flight deck.
G1000 Components
The G1000 is comprised of several main components, called Line Replaceable
Units (LRUs):
• Primary Flight Display (PFD)
• Multi Function Display (MFD)
• Integrated Avionics Units
• Attitude and Heading Reference System (AHRS)
• Air Data Computer (ADC)
• Engine/Airframe Unit
• Magnetometer
• Audio Panel
• Transponder
The PFD (left screen) shows primary flight information in place of traditional
pitot-static and gyroscopic instruments, and also provides an HSI for navigation.
8 • Aircraft Systems