Glass Cockpits • Introduc2on • Why Is It Important for A&Ps
• Ingredients That Makeup Glass Cockpits
• Pros/Cons • Regular Maintenance
• FAA Ques2ons • Summary
What Is a Glass Cockpit? • TAA – Technically Advanced AircraG (FAA)
IFR-‐cer2fied with GPS naviga2on equipment • or
Mul2-‐func2on display (MFD) with weather, traffic, or terrain graphics; and an integrated autopilot
• Defined by Avionics Using (for this discussion): Flat Electronic Displays Power by Microprocessor (computer)
Why Is It Important for A&Ps? • Pilots are demanding it
Reduces Workload & Simplifies Naviga2on
• FAA is Switching to GPS Reducing VOR and Category I ILS Implemen2ng GPS/WAAS Approaches
• Most New AircraG Sold with Glass Cockpits
• Older AircraGs Are Upgrading to Glass Cockpits • Demand for Avionics Technicians
SoGware – Heart & Soul • A Microprocessor (Computer) is a Calculator that Follows Instruc2ons
• The Instruc2ons Are Called SoGware • Same Hardware, Different SoGware, Different Product
• Product Can Be Updated, Fixed and New Features Added by Change SoGware
• SoGware Bug is a Mistake in the Instruc2ons
VOR Posi2on Fix
• Tune In Near By VOR Station • Use OBS on CDI to Find Bearing from VOR • Draw Bearing Line on Map • Repeat for Second VOR Station
VOR Naviga2on Shortcomings • VOR Signal Limited to Line-‐Of-‐Sight • Limited Accuracy
• Time Consuming Process
• FAA is Planning VOR Sta2on Closers • Ver2cal Informa2on Only Provided on ILS Approaches
GPS/WAAS Naviga2on • Global Posi2oning System (GPS) -‐Space Based Radio Naviga2on
• Wide Area Augmenta2on System (WAAS) -‐ Provides Error Correc2on
GPS/WAAS Advantages • No Line-‐Of-‐Sight Limita2ons • More Accurate
• Height Informa2on
• Lower Pilot Work Load
• More Efficient, Flexible, and User-‐Preferred Route Structures
• Interna2onal Standard • WAAS Approaches Replacing ILS
XM Weather
• Weather Data Sent from Satellite • High Resolu2on NEXRAD • Winds AloG
• TFRs, AIRMETS, TAFs, & SIGMETs
• Subscrip2on Service
Portable GPS
• GPS Based Naviga2on • XM Weather
• Windshield, Lap, Yoke or Panel Mounted
• Ba`ery or Plane Power
Portable GPS
• Real-‐2me Tracking Displayed on Map • “Mini” Instrument Panel
• Automa2c Rou2ng Informa2on
• XM Weather Project on Map
• Displays al2tude-‐sensi2ve alerts • Electronic Flight Bag (EFB)
GPS & Radio
• WAAS Cer2fied • Approach and Rou2ng Informa2on Displayed on CDI and HSI
• Common Upgrade to “Steam Gauges”
• Meets TSO C146a Standards for “Sole Means” Naviga2on
• Drives Autopilot
Garmin GTN 750
MFD/PFD
• EFIS -‐ Electronic Flight Instrument System • PFD – Primary Flight Display
• MFD – Mul2-‐Func2on Display
• Basically a Computer Display Some2mes Computer Brain in Same Unit
Analog Upgrade
• Aspen Avionics EDF1000 • Upgrade Standard “Six-‐Pack” • Upgrade With No Mechanical Changes to Panel
• Install One to Three Units
Top of Line GA
• Cirrus SR22 with Garmin G1000 • Flight Instrument, Engine Instruments, Radios, Naviga2on, Weather, Autopilot and Charts on PFD/MFD
• Keyboard Input • Synthe2c Vision System (SVS)
• Video
Glass Cockpit -‐ Pros • Easier Naviga2on • Integra2on of Informa2on in Smart Display
• Electronic Maps and Charts
• Smart Engine Opera2on
• WAAS Approaches
• Emergency Assistance
• Situa2on Alarms
• No Moving Parts
Glass Cockpit -‐ Cons • No Standard User Interface • Higher Learning Curve for Pilots • New Learning for “Analog” Pilots • Suscep2ble to Electrical Failure • Complex Electrical System
Ba`ery Backup Dual Alternators Dual Buss
• New Procedures for Mechanics
Diamond DA42 Crash Lesson • All Electric Airplane with Electronic Engine Control Unit
• Dead Ba`ery • Engines Started with GPU • AircraG Crashes During Takeoff – Engines Failed – Low Power for Engine Control Unit
• Airplane Needed Supplemental Power from Ba`ery During Takeoff
• Lesson Learned – Fully Charge Ba`ery
Regular Maintenance • Annual – Check Cables, Connectors, Bu`ons, Servos, Airspeed, Indictor Ver2cal Speed Indicator, Bu`ons and Lights
• 24 Months -‐ Pitot/Sta2c Leak, Al2meter & Transponder Test
• 1000 hours/3 Years – Clean Servos and Apply Grease to Output Gears
Regular Maintenance • 5 Years – Update Earth Magne2c Field SoGware • 10 Years – Change Ba`ery • Periodically Install SoGware Update
Don’t Interrupt Update Process – Leave Power On!!!
• Owner Can Install Regular Chart & Map Data Updates
FAA Ques2on Data transmi`ed between components in an EFIS are converted into: A. digital signals B. analog signals C. carrier wave signals
FAA Ques2on The Func2on of a CRT in an EFIS is to: A. allow the pilot to select the appropriate system configura2on for the the current flight situa2on B. display alphanumeric data and representa2ons of aircraG instruments C. receive and process input signals from aircraG and engine sensors and send the data to the appropriate display
FAA Ques2on The Func2on of a CRT in an EFIS is to:
B. display alphanumeric data and representa2ons of aircraG instruments
FAA Ques2on The func2on of a symbol generator (SG) in an EFIS is to: A. display alphanumeric data and representa2on of aircraG instruments B. allow the pilot to select the appropriate system configura2on for the current flight situa2on C. receive and process input signals from aircraG and engine sensors and send the data to the appropriate display
FAA Ques2on The func2on of a symbol generator (SG) in an EFIS is to:
C. receive and process input signals from aircraG and engine sensors and send the data to the appropriate display
FAA Ques2on The func2on of a display controller in an EFIS is to: A. display alphanumeric data and representa2ons of aircraG instruments B. allow the pilot to select the appropriate system configura2on for the current flight situa2on C. receive and process input signals from aircraG and engine sensors and send the data to the appropriate display
FAA Ques2on The func2on of a display controller in an EFIS is to:
B. allow the pilot to select the appropriate system configura2on for the current flight situa2on
Glass Cockpit -‐ Summary • TAA – Technically Advanced AircraG are Here • GPS/WAAS is Becoming a Must
• Low Maintenance
• More Complicated Electrical System
• Learn Your Computer Skills
Posi2on and Naviga2on
• Aptude & Heading Reference System (AHRS) • Magne2c Sensor
• Air Data Computer
• GPS/WAAS Receiver
Sensors and Servos
• LRU – Receiving/Processing Signals from Engine and Airframe Sensors.
• Autopilot Servo • Outside Air Temperature Probe