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B737 fmc u10.6-changes

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B737 fmc u10.6-changes

B737 fmc u10.6-changes

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  • 1. 737.1 737 FMC U10.6 Changes 737 FMC U10.6 Changes Mark Peterson Avionics-FMC Boeing Commercial Airplanes May 2004 Mark Peterson Avionics-FMC Boeing Commercial Airplanes May 2004
  • 2. 737.2The Boeing Company 737 FMC737 FMC • Remaining automatic switches to speed descent mode are removed. Selecting the SPEED prompt is the only way to get into the SPEED descent mode • “Geometric” Path descent is now basic, not optional • Switch to path on “point to point” legs • Nuisance VNAV DISCONNECT message during flare and landing is eliminated • Remaining automatic switches to speed descent mode are removed. Selecting the SPEED prompt is the only way to get into the SPEED descent mode • “Geometric” Path descent is now basic, not optional • Switch to path on “point to point” legs • Nuisance VNAV DISCONNECT message during flare and landing is eliminated U10.6 VNAV Basic ChangesU10.6 VNAV Basic Changes
  • 3. 737.3The Boeing Company 737 FMC737 FMC • Descent path now extends beyond lateral discontinuities • Approach waypoint altitude constraints cannot be deleted with altitude intervention • Allow crew modification of runway angle (for VFR approaches). Added a field for angle entry to ARR page, under RW EXT field • Descent path now extends beyond lateral discontinuities • Approach waypoint altitude constraints cannot be deleted with altitude intervention • Allow crew modification of runway angle (for VFR approaches). Added a field for angle entry to ARR page, under RW EXT field U10.6 VNAV Basic ChangesU10.6 VNAV Basic Changes
  • 4. 737.4The Boeing Company Geometric Path Descent (Basic)Geometric Path Descent (Basic) Late Descent or Speed Intervention VNAV switches from VNAV SPD to VNAV PTH on “point to point” leg “Non-geometric” option no longer available
  • 5. 737.5The Boeing Company Descent Path After DiscontinuitiesDescent Path After Discontinuities Speed/altitude predictions.
  • 6. 737.6The Boeing Company Altitude Intervention Cannot Delete Approach Waypoint Constraints Altitude Intervention Cannot Delete Approach Waypoint Constraints Base approach altitude constraints can be deleted only via the CDU (to prevent inadvertent deletion) Cannot be deleted with Altitude Intervention
  • 7. 737.7The Boeing Company Crew Defined Runway AngleCrew Defined Runway Angle New field
  • 8. 737.8The Boeing Company 10.6 Optional VNAV Changes10.6 Optional VNAV Changes Added as part of Common VNAV option: • Use VNAV SPD instead of overspeed disconnect for unforecast tailwinds or late descent (Common with other Boeing FMCs) • Remove SPEED DES prompt from DES page • PATH or SPEED removed from DES page title, since it is now always path, e.g., ACT ECON DES • Common VNAV will provide increased commonality with other Boeing FMCs and reduce training Added as part of Common VNAV option: • Use VNAV SPD instead of overspeed disconnect for unforecast tailwinds or late descent (Common with other Boeing FMCs) • Remove SPEED DES prompt from DES page • PATH or SPEED removed from DES page title, since it is now always path, e.g., ACT ECON DES • Common VNAV will provide increased commonality with other Boeing FMCs and reduce training
  • 9. 737.9The Boeing Company Common VNAVCommon VNAV VNAV SPD used for late descent and reversions Page title changed SPEED prompt removed
  • 10. 737.10The Boeing Company Common VNAVCommon VNAV Descent path recaptured when airplane satisfies capture criteria
  • 11. 737.11The Boeing Company Other U10.6 FeaturesOther U10.6 Features • Improve SEL DES WPT page: – Add capability to display names of airports, navaids, and non-directional beacons – Added NDB frequencies – New page format can be used with or without extra data in navigation data base • Improve SEL DES WPT page: – Add capability to display names of airports, navaids, and non-directional beacons – Added NDB frequencies – New page format can be used with or without extra data in navigation data base
  • 12. 737.12The Boeing Company SELECT DESIRED WAYPOINTSELECT DESIRED WAYPOINT Name added in header, and frequencies displayed, matches charts Old page.
  • 13. 737.13The Boeing Company SELECT DESIRED WAYPOINTSELECT DESIRED WAYPOINT Names in the navigation data base may be omitted to keep data base size smaller for mixed fleet use with older FMCs such as U5. The page display is the same, minus the names. Old page
  • 14. 737.14The Boeing Company Other U10.6 FeaturesOther U10.6 Features • Speed Propagation (Option)- When a manual speed is entered on CRZ page, it propagates to the rest of the vertical pages (like MD80/90) • Four additional FIX pages for a total of six (Option) • Quiet Climb modified to keep CUTBACK enabled during reentry of Vspeeds (Improvement to QCS Option) • LNAV Change to reduce bank angle at high altitudes (Basic) • Takeoff Speed Order Checking (V1<Vr<V2) (Basic) • Speed Propagation (Option)- When a manual speed is entered on CRZ page, it propagates to the rest of the vertical pages (like MD80/90) • Four additional FIX pages for a total of six (Option) • Quiet Climb modified to keep CUTBACK enabled during reentry of Vspeeds (Improvement to QCS Option) • LNAV Change to reduce bank angle at high altitudes (Basic) • Takeoff Speed Order Checking (V1<Vr<V2) (Basic)
  • 15. 737.15The Boeing Company Speed PropagationSpeed Propagation 300 entered on CRZ, propagates to DES
  • 16. 737.16The Boeing Company Four Additional FIX pagesFour Additional FIX pages
  • 17. 737.17The Boeing Company LNAV Roll Angle ChangeLNAV Roll Angle Change 0.0 5.0 10.0 15.0 20.0 25.0 0 20 40 60 80 100 120 Track Change NominalRollAngle U10.5 DO-236A Floor U10.6
  • 18. 737.18The Boeing Company Takeoff Speed Order CheckingTakeoff Speed Order Checking • If an entry is made that violates V1< Vr < V2, the remaining V speeds are deleted • If an entry is made that violates V1< Vr < V2, the remaining V speeds are deleted 119
  • 19. 737.19The Boeing Company The EndThe End