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Represented by “1” on the airspeed scale (or the V1 value when it is off the
airspeed scale).
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
VR : The speed at which the pilot rotates in order to reach V2 at an altitude of 35 ft at
the latest after an engine failure.
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
V2 : Takeoff safety speed that the aircraft attains at the latest at an altitude of 35 ft
with one engine failed, and maintains during the second segment of the takeoff.
Represented by the SPEED SELECT symbol on the speed scale.
Minimum value equal to 1.13 VS for the corresponding configuration.
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
VREF : Reference speed used for normal final approach.
Equal to 1.23 × VS of CONF FULL.
Displayed on the MCDU APPR page, if landing is planned in CONF FULL (VLS
CONF FULL).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
OPERATING SPEEDS DEFINITION
A318/A319/A320/A321 FLEET PRO-SUP-10 P 14/16
FCOM 19 AUG 10
VAPP : Final approach speed.
Displayed on MCDU APPR page.
Calculated by the FMGCs.
Represents : VAPP = VLS + wind correction +5 kt.
The flight crew may modify VAPP through the MCDU.
During autoland or when A/THR is on ‐ or in case of ice accretion or gusty
crosswind greater than 20 kt, VAPP must not be lower than VLS +5 kt.
VAPP TARGET : Represented by a magenta triangle.
Calculated by the FMGCs
Gives efficient speed guidance in approach during various windy conditions.
Represents :
VAPP TARGET = GS mini + actual headwind (measured by ADIRS)
GS mini = VAPP – TOWER WIND (headwind component along runway axis
calculated by FMGC from tower wind entered on MCDU).
OTHER SPEEDS
Applicable to: MSN,
V1 : The highest speed, during takeoff, at which the flight crew has a choice
between continuing the takeoff or stopping the aircraft.
Represented by “1” on the airspeed scale (or the V1 value when it is off the
airspeed scale).
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
VR : The speed at which the pilot rotates in order to reach V2 at an altitude of 35 ft at
the latest after an engine failure.
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
V2 : Takeoff safety speed that the aircraft attains at the latest at an altitude of 35 ft
with one engine failed, and maintains during the second segment of the takeoff.
Represented by the SPEED SELECT symbol on the speed scale.
Minimum value equal to 1.13 VS for the corresponding configuration.
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
VREF : Reference speed used for normal final approach.
Equal to 1.23 × VS of CONF FULL.
Displayed on the MCDU APPR page, if landing is planned in CONF FULL (VLS
CONF FULL).
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
OPERATING SPEEDS DEFINITION
A318/A319/A320/A321 FLEET PRO-SUP-10 P 15/16
FCOM 19 AUG 10
VAPP : Final approach speed.
Displayed on MCDU APPR page.
Calculated by the FMGCs.
Represents : VAPP = VLS + wind correction +5 kt.
The flight crew may modify VAPP through the MCDU.
During autoland or when A/‐ THR is on or in case of ice accretion or gusty
crosswind greater than 20 kt, VAPP must not be lower than VLS +5 kt.
VAPP TARGET : Represented by a magenta triangle.
Calculated by the FMGCs
Gives efficient speed guidance in approach during various windy conditions.
Represents :
VAPP TARGET = GS mini + actual headwind (measured by ADIRS)
GS mini = VAPP – TOWER WIND (headwind component along runway axis
calculated by FMGC from tower wind entered on MCDU).
OTHER SPEEDS
Applicable to:
, ,
MSN,,
V1 : The highest speed, during takeoff, at which the flight crew has a choice
between continuing the takeoff or stopping the aircraft.
Represented by “1” on the airspeed scale (or the V1 value when it is off the
airspeed scale).
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
VR : The speed at which the pilot rotates in order to reach V2 at an altitude of 35 ft at
the latest after an engine failure.
Inserted manually through the MCDU by the flight crew.
Displayed on the MCDU TAKEOFF page.
V2 : Takeoff safety speed that the aircraft attains at the latest at an altitude of 35 ft
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 14(55)
