Speedtape

Speedtape-reference-a
1 FMC/MCP Command Airspeed Bug
  • Displays when the FMC/MCP command airspeed as selected by the FMC or the IAS/MACH selector is in the displayed range.
2 VR (Rotation Speed) Bug
  • displays after manual entry on the TAKEOFF REF page.
  • blanks 2 minutes after takeoff.
3 V1 (Decision Speed) Bug
  • displays after manual entry on the TAKEOFF REF page.
  • replaces digital V1 display when V1 speed is within the displayed range.
  • blanks 2 minutes after takeoff.
Speedtape-reference-b
4 Manoeuvring Speed
  • displays manoeuvring speed for existing flap setting.
  • displays 10 seconds after takeoff.
  • blanks above 20,000 ft.
5 Minimum Manoeuvring Speed
  • top of amber bar indicates speed where 40° bank results in stick shaker.
  • displays shortly after takeoff.
  • derived from FMC gross weight and IAS.
6 Minimum Speed
  • indicates the airspeed where stick shaker activates.
  • derived from FMC gross weight and IAS.
Speedtape-reference-c
7 FMC/MCP Command Airspeed
  • Displays in this location when the FMC/MCP command airspeed bug as selected by the FMC or IAS/MACH selector is above the displayed range.
  • manual entry of V2 on the TAKEOFF REF page is ignored.
8 V1 (Decision Speed)
  • Indicates decision speed.
  • Displays after manual entry on the TAKEOFF REF page.
  • Displays during initial takeoff roll when V1 is above the displayed range.
9 Airspeed Pointer
  • indicates current airspeed when above 30 knots.

Speedtape-reference-d
10 Speed Tape Scale
  • Scrolls up or down in response to airspeed changes.
11 Maximum Speed

Indicates maximum permissable airspeed as limited by the lowest of the following:

  • VMO/MMO
  • Landing gear placard speed
  • Flap placard speed
12 Maximum Manoeuvring Speed
  • When displayed, indicates manoeuvre margin to buffet. May be displayed when operating at high altitude at relatively high gross weights.
Speedtape-reference-e
13 FMC/MCP Command Airspeed
  • displayed in this location when the FMC/MCP command airspeed bug as selected by the FMC or IAS/MACH selector is below the displayed range.
14 Speed Trend Vector
  • Indicates predicted airspeed in 10 seconds based on current acceleration or deceleration
15 Landing Reference Bug
  • Displays the VREF speed as selected on the APPROACH REF page.