Podcast
Questions and Answers
What is the primary function of the Inertial Reference Systems in relation to navigation?
What is the primary function of the Inertial Reference Systems in relation to navigation?
Which component is included in the composition of the Flight Management System (FMS)?
Which component is included in the composition of the Flight Management System (FMS)?
In the Flight Management Computer (FMC), where is the data related to performance calculations typically stored?
In the Flight Management Computer (FMC), where is the data related to performance calculations typically stored?
What type of data does the Flight Management Computer (FMC) rely on for flight plans?
What type of data does the Flight Management Computer (FMC) rely on for flight plans?
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Which mode does the Electronic Flight Instrument System (EFIS) display indicate when it shows the overall map of the route?
Which mode does the Electronic Flight Instrument System (EFIS) display indicate when it shows the overall map of the route?
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Which database contains data relating to Standard Terminal Arrival Routes (STARs) and Standard Instrument Departures (SIDs) in the FMC?
Which database contains data relating to Standard Terminal Arrival Routes (STARs) and Standard Instrument Departures (SIDs) in the FMC?
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Which figure would represent the VOR frequency selected in the FULL VOR/ILS mode of the EFIS?
Which figure would represent the VOR frequency selected in the FULL VOR/ILS mode of the EFIS?
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What is NOT a source of data for the Electronic Flight Instrument System (EFIS) in the FMC?
What is NOT a source of data for the Electronic Flight Instrument System (EFIS) in the FMC?
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In the context of FMS, what does the acronym STAR denote?
In the context of FMS, what does the acronym STAR denote?
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Which mode is used in the EFIS when the display shows a top-down view of the planned route?
Which mode is used in the EFIS when the display shows a top-down view of the planned route?
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What kind of access do pilots have to the database on a Flight Management Computer (FMC)?
What kind of access do pilots have to the database on a Flight Management Computer (FMC)?
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Which types of data can be input manually to the FMC using a maximum of 5 alphanumerics?
Which types of data can be input manually to the FMC using a maximum of 5 alphanumerics?
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Which component is responsible for generating the visual displays on the EADI and EHSI?
Which component is responsible for generating the visual displays on the EADI and EHSI?
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How can a pilot insert navigation data into the FMS database?
How can a pilot insert navigation data into the FMS database?
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What method does the B737-800 FMC primarily use for position fixing?
What method does the B737-800 FMC primarily use for position fixing?
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When is the position of the IRS updated?
When is the position of the IRS updated?
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Which of the following message types is represented by the color red according to JAR 25?
Which of the following message types is represented by the color red according to JAR 25?
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Which navigation system operates independently of external inputs?
Which navigation system operates independently of external inputs?
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What does the Flight Management Computer (FMC) position represent?
What does the Flight Management Computer (FMC) position represent?
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In which scenario is the FMS position likely to be least accurate?
In which scenario is the FMS position likely to be least accurate?
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What does the track line on an EFIS display indicate when there is zero drift?
What does the track line on an EFIS display indicate when there is zero drift?
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Which of these systems is not typically used for position fixing on the B737-800?
Which of these systems is not typically used for position fixing on the B737-800?
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What characterizes the Backup FMS navigation mode?
What characterizes the Backup FMS navigation mode?
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Which system is a critical component of the B737-800's position fixing capability?
Which system is a critical component of the B737-800's position fixing capability?
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What is the purpose of requesting the gate number by the FMC?
What is the purpose of requesting the gate number by the FMC?
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Which sensor/system operates independently without external information?
Which sensor/system operates independently without external information?
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Data relating to V1, VR and V2 speeds in the FMC is stored in which database?
Data relating to V1, VR and V2 speeds in the FMC is stored in which database?
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In the FMC, waypoint data is stored in which database?
In the FMC, waypoint data is stored in which database?
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The main navigation database of the FMC is considered to be what to the pilot?
The main navigation database of the FMC is considered to be what to the pilot?
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Under JAR-25 color code rules, what does a red display on EFIS signify?
Under JAR-25 color code rules, what does a red display on EFIS signify?
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At which stages is it possible to change the route in the active flight plan of an FMS equipped aircraft?
At which stages is it possible to change the route in the active flight plan of an FMS equipped aircraft?
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The ETA generated by the FMS is most accurate under which condition?
The ETA generated by the FMS is most accurate under which condition?
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For position fixing, which combinations does the FMC utilize?
For position fixing, which combinations does the FMC utilize?
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During pre-flight initialization, which inputs will the pilot make to the FMC?
During pre-flight initialization, which inputs will the pilot make to the FMC?
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In the NAV and EXP NAV modes, what distance does one dot represent on the EHSI?
In the NAV and EXP NAV modes, what distance does one dot represent on the EHSI?
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Which color is recommended for engaged modes in JAR OPS 1?
Which color is recommended for engaged modes in JAR OPS 1?
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Which Electronic Horizontal Situation Indicator (EHSI) screen modes display radar returns on a B737-400?
Which Electronic Horizontal Situation Indicator (EHSI) screen modes display radar returns on a B737-400?
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What is the primary role of the Flight Management Computer (FMC) in determining position?
What is the primary role of the Flight Management Computer (FMC) in determining position?
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Which of the following provides the most accurate indication of flight progress between two waypoints?
Which of the following provides the most accurate indication of flight progress between two waypoints?
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Under which circumstances will the ETO and ETA calculated by the FMC be accurate?
Under which circumstances will the ETO and ETA calculated by the FMC be accurate?
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Which components primarily provide navigation data within an Electronic Flight Instrument System (EFIS)?
Which components primarily provide navigation data within an Electronic Flight Instrument System (EFIS)?
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Which mode does not display radar returns on a B737-400's EFIS?
Which mode does not display radar returns on a B737-400's EFIS?
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What is the function of the IRS in the context of aviation navigation?
What is the function of the IRS in the context of aviation navigation?
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In regards to ground speed calculations, which aspect is crucial for accurate ETO and ETA estimations?
In regards to ground speed calculations, which aspect is crucial for accurate ETO and ETA estimations?
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Study Notes
Flight Deck Equipment and Operation
- Radar returns on B737-400 displayed on EHSI: Excludes FULL NAV, FULL VOR/ILS, and PLAN modes.
- FMC position generated from a combination of IRS and radio navigation; serves as the computed position.
- Best progress information between waypoints from RNAV is shown as ETO (Estimated Time Over).
- ETOs and ETAs are accurate when actual winds match forecast winds and Mach numbers align.
- Navigation data in EFIS is sourced from FMC, navigation radios, and Inertial Reference Systems (IRS).
- FMC databases are read-only, ensuring data integrity and accuracy.
- Pilots can manually input navigation facilities, reporting points, and airways in the FMC with a maximum of 5 alphanumerics.
- Visual displays on EADI and EHSI generated by Symbol Generator.
- FMS database allows pilot to insert navigation data but is read-only during regular operation.
- Track-line on EHSI indicates aircraft's ground track and accounts for wind influence.
IRS and FMS Positioning
- IRS position updates occur on the ground only, providing a stable reference for navigation during flight.
- FMC position reflects computed values from multiple sources like IRS and GPS, ensuring accuracy.
- FMS position is least accurate at the Top of Descent (TOD) phase.
- FMS databases allow pilots to read navigation data during flight without modification.
- Inertial Navigation System (INS) is a self-contained system that does not rely on external information.
FMS Operational Modes and Updates
- Dual FMC systems allow modes of operation: dual, independent, and single.
- Backup FMS navigation mode activates when there is limited functionality of the FMC due to failure.
- Gate numbers input is utilized by the FMC to convert gate positions to WGS 84 coordinates for accurate navigation.
- IRS derives navigational data through built-in sensors, making it self-sufficient in operation.
Flight Management System Components
- FMS comprises the command display unit and the flight management computer (FMC).
- ETA provided by the FMS becomes most accurate with precise ground speed and accurate position inputs.
- Position fixing in FMC utilizes DME/DME and VOR/DME combinations for navigation accuracy.
- Initial pre-flight FMC inputs include planned route, aircraft position, and departure runway.
EFIS and Display Color Codes
- One dot on EHSI in NAV and EXP NAV modes equals 2 nautical miles.
- Engaged modes in EFIS are represented in green according to JAR OPS standards.
- Amber or white/magenta indicate turbulence conditions on EFIS display, enhancing pilot situational awareness.
- Warnings and system limits highlighted in red; critical for immediate pilot attention.
- EHSI modes unable to display AWR information include PLAN and FULL VOR/ILS/NAV modes.
Data Management and Navigation
- Data relating to performance, flight plans, waypoints, and speeds stored in the FMC across specific databases.
- Flight Management System configured for optimal database management, read-only for pilots.
- INS operates independently from all external inputs, providing crucial navigational data for flight operations.
- Track line on EFIS indicates actual aircraft track over the ground, relevant for navigation adjustments in flight.
Summary Points
- Essential understanding of FMC operations, including limitations and applicability of navigation inputs.
- Familiarity with EFIS displays, their operational modes, and color coding for alerts and indications.
- Recognition of how positioning systems work together within the cockpit environment for safe navigation and effective flight management.
Studying That Suits You
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Description
Test your knowledge on typical flight deck equipment and operations, specifically focused on the B737-400 and the Electronic Flight Instrument System (EFIS). This quiz includes questions about radar returns and Flight Management Computer (FMC) positioning. Perfect for aspiring pilots and aviation enthusiasts.
