ACI 2 (Mod 2) Flashcards
Different flight instruments
- Attitude Indicator
- Altimeter
- Airspeed Indicator
- Heading Indicator
- Vertical Speed Indicator
- Turn Coordinator
This type of instruments help pilots determine their position and navigate from one location to another
Navigation Instrument
Types of Navigation Instrument
- Global Positioning System
- VHF Omnidirectional Range
- Automatic Direction Finder
- Instrument Landing System
Provides precise location data using
satellite signals
Global Positioning System
Helps in navigating to or from a radio beacon
VHF Omnidirectional Range
Indicates the direction to a radio station
Automatic Direction Finder
Assists in landing by providing lateral and vertical guidance
Instrument Landing System
This type of instruments monitor the performance and condition of the aircraft’s engine
Engine instruments
Types of Engine instruments
- Tachometer
- Oil pressure gauge
- Fuel flow indicator
- Exhaust gas temperature gauge
Measure’s the engine RPM
tachometer
Indicates the pressure of the engine oil
oil pressure gauge
Shows the rate of fuel consumption
Fuel flow indicator
Measures the temperature of the exhaust gases
Exhaust gas temperature
These instruments keep track of various aircraft systems to ensure they are operating correctly.
Systems Monitoring Instruments
Types of Systems Monitoring Instruments
- Hydraulic pressure gauge
- Electrical system monitor
- Cabin pressure gauge
Monitors the pressure in the hydraulic
system
Hydraulic pressure gauge
Displays information about the aircraft’s
electrical system, such as voltage and current
Electrical system monitor
Indicates the cabin pressure, essential for
maintaining a safe and comfortable environment for passengers
Cabin Pressure Gauge
shown on the airspeed indicator, not
corrected for altitude, temperature, or instrument error
Indicated Air Speed (IAS)
Speed of the aircraft relative to the air, corrected
for altitude and temperature
True Airspeed (TAS)
Speed of the aircraft relative to the ground, which is TAS
corrected for wind
Ground Speed
is indicated airspeed corrected for
instrument errors and position error (due to incorrect pressure at the
static port caused by airflow disruption)
Calibrated Air Speed
The direction in which the aircraft’s nose is pointing, measured in degrees from North
Heading
The actual path of the aircraft over the ground, which may differ from the heading due to wind
Track
The height of the aircraft above a given reference point, usually sea level
Altitude
The rate at which the aircraft is climbing or descending, typically measured in feet per minute (fpm)
Vertical Speed
The orientation of the aircraft relative to the horizon, including pitch (nose up/down) and roll (wing up/down)
Attitude
The pressure exerted by the atmosphere, used in altimeters to determine altitude
Barometric Pressure
The difference between true north and magnetic north, which varies by location
Magnetic Variation
It provides essential information related to airspeed, altitude, and vertical speed
Pitot Static System
2 subsystems of pitot static system
- Pitot tube
- Static Port
What flight instruments uses the Pitot static system
- Airspeed indicator
- Altimeter
- Vertical Speed Indicator
Usually mounted on the aircraft’s wing or nose, positioned to face the oncoming air flow
Pitot tube
What does the pitot tube determine
Airspeed
Measures the static pressure of the ambient air.
Static port
Where is the static port located
Mounted on the fuselage, away from the airflow disturbance
What does the static port determine
- Altitude
- Vertical Speed
How the Pitot-Static System Works?
capturing and comparing different types of air pressure
The pressure caused by the motion of the aircraft through the air.
Dynamic Pressure
Dynamic pressure is measured by the
Pitot tube
How is dynamic pressure used
combined with static pressure to determine airspeed
The pressure of the still air surrounding the aircraft.
Static pressure
Static pressure is measured by the
Static Port
How is static pressure used
Used directly by the altimeter and VSI; combined with dynamic pressure for the airspeed indicator.
The sum of dynamic and static pressure
Total pressure
What is the source of total pressure
Derived from the pitot tube
How is total pressure used
Calculating indicated airspeed
What to do during pre-flight checkers regarding the pitot static system
Check for blockages
What to do during in-flight monitoring regarding the pitot static system
Be aware of unusual behavior
What to do during post-flight inspections regarding the pitot-static system
Perform thorough checks
This computer, rather than individual instruments, can determine the calibrated airspeed, Mach number, altitude, and altitude trend data from an aircraft’s Pitot Static System
Air Data Computer (ADC)
Provides primary flight instruments, including attitude, airspeed, altitude, magnetic heading, DG, VSI, AOA, G-meter, turn rate, slip/skid ball, OAT, and TAS.
Air Data/Attitude/Heading Reference System (ADAHRS)
What instrument uses both the pitot tube and static port
Airspeed Indicator
What instrument uses only static port
- Altimeter
- Vertical Speed Indicator
