* If VREF + 20 exceeds landing flap placard speed minus 5 knots, use landing flap
placard speed minus 5 knots.
The minimum command speed setting with autothrottle disconnected is VREF +
5 knots. The gust correction should be maintained to touchdown while the steady
headwind correction should be bled off as the airplane approaches touchdown.
Note: Do not apply wind corrections for tailwinds. Set command speed at VREF
+ 5 knots (autothrottle engaged or disconnected).
Non-Normal Conditions
Occasionally, a non-normal checklist instructs the flight crew to use a VREF speed that also includes a speed additive such as VREF 15 + 15. When VREF has been adjusted by the non-normal procedure, the new VREF is called the adjusted VREF and becomes the new VREF for landing (adjusted VREF does not include wind corrections). For example, if a non-normal checklist specifies “Use flaps 15 and VREF 15 + 10 for landing”, the flight crew would select flaps 15 as the landing flaps and look up the VREF 15 speed in the FMC or QRH and add 10 knots to that speed.
If the autothrottle is disengaged, or is planned to be disengaged prior to landing, appropriate wind corrections must be added to the adjusted VREF to arrive at command speed, the speed used to fly the approach. For example, if the checklist states “use VREF 40 + 30 knots”, command speed should be positioned to adjusted VREF (VREF 40 + 30) + wind correction (5 knots minimum, 20 knots maximum).
Copyright . The Boeing Company. See title page for details.
1.26 FCT 737 (TM) October 31, 2006
737 Flight Crew Training Manual
737-600 - 737-900 If a flaps 15 landing is performed and VREF ICE is required, (VREF ICE = VREF 15 + 10), the wind correction should not exceed 10 knots.
737 Flight Crew Training Manual
Reference Bugs
The following figure shows the positioning of the reference bugs on the airspeed indicator for takeoff and approach.
Bug Setting (MASI) 737-300 - 737-500
Takeoff
White movable airspeed bugs are set at V1, VR, takeoff flap maneuvering speed (V2 + 15), and flaps up maneuvering speed. Command speed is set to V2 using the MCP. V2 is the minimum takeoff safety speed and provides at least 30° bank capability (15° + 15° overshoot) for all takeoff flaps. V2 + 15 is recommended maneuvering speed for all takeoff flaps and the initial flap retraction speed for takeoffs with flaps greater than 1. V2 + 15 provides 40° bank capability (25° + 15° overshoot) for all takeoff flaps.
Approach -Landing
Position two white airspeed bugs at VREF for landing flaps, a single white airspeed bug at VREF + 15 speed, and a single white airspeed bug at the flaps up maneuvering speed.
Copyright . The Boeing Company. See title page for details.
1.28 FCT 737 (TM) October 31, 2006
Bug Setting (EFIS/Speed Tape) 737-300 - 737-500
Takeoff
When V1, VR and gross weight are entered into the FMC, airspeed bugs are automatically displayed at V1, VR and the minimum flap retraction speed “F” for the next flap position. Command speed is set to V2 using the MCP. V2 is the minimum takeoff safety speed and provides at least 30° bank capability (15° + 15° overshoot) for all takeoff flaps.
Approach -Landing
VREF is displayed upon entry of landing flaps/speed in the FMC. Command speed is set by the FMC during VNAV or manually by the MCP.
737 Flight Crew Training Manual
Bug Setting (MASI or PFD/ND) 737-600 - 737-900
737-800, 737-900
* VREF + 20 with CDS Block Point 2004 and later. Refer to the FCOM for correct configuration.
Copyright . The Boeing Company. See title page for details.
1.30 FCT 737 (TM) October 31, 2006
737 Flight Crew Training Manual
Takeoff
When V1, VR and gross weight are entered into the FMC, airspeed bugs are automatically displayed at V1, VR and the minimum flap retraction speed for the next flap position. Command speed is set at V2 using the MCP. V2 is the minimum takeoff safety speed and provides at least 30° bank capability (15° + 15° overshoot) for all takeoff flaps. An airspeed bug is automatically set 15 knots above command speed. V2 + 15 provides 40° bank capability (25° + 15° overshoot) for all takeoff flaps.
Approach -Landing
737-600, 737-700 VREF and VREF + 15 are displayed upon entry of landing flaps/speed in the FMC. The maneuvering speed for the current flap position and the next flap position are automatically displayed on the airspeed display.
737-800, 737-900 VREF and VREF + 15 (VREF + 20 for airplanes with CDS Block Point 2004 and later) are displayed upon entry of landing flaps/speed in the FMC. The maneuvering speed for the current flap position and the next flap position are automatically displayed on the airspeed display.
Bug Setting with FMC Inoperative
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