altitude de décision
Specified altitude in precision approach at which a missed approach must be initiated if runway not in sight.
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Flight Planning
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altitude densité
Altitude at which the aircraft feels it is flying based on current pressure, temperature, and humidity, affecting performance.
View termaltitude pression
Altitude indicated when the altimeter is set to the standard pressure setting of 1013.25 hPa (29.92 inHg).
View termcarburant alterné en route
Fuel required to fly from the destination to an alternate aerodrome en‑route under planned conditions.
View termcarburant roulage arrivée
Estimated fuel required for taxiing after landing, including clearing runway and reaching gate.
View termcarburant roulage départ
Fuel required for engine start, taxi, and contingencies before take-off.
View termcarburant réserve fixe
Fixed quantity of fuel required to be carried for emergencies as per regulatory minimum reserve rules.
View termcarburant réserve variable
Additional reserve fuel calculated proportionally to flight time beyond the fixed reserve, for unforeseen delays.
View termCode D’état De Piste
Numeric Value From 0 To 6 Indicating The Braking Action And Surface Condition Of A Runway As Published In A Runway Condition Report.
View termComposante De Vent Arrière
Wind Blowing In The Same Direction As Aircraft Movement, Reducing Lift And Increasing Required Take‑Off Or Landing Distance.
View termComposante De Vent De Face
Wind Blowing Opposite To Aircraft Movement, Increasing Lift And Reducing Required Take‑Off Or Landing Distance.
View termcomposante de vent de face
The component of the wind along the runway axis directed opposite to aircraft’s travel, used for performance calculations.
View termComposante De Vent De Travers
Wind Component Perpendicular To The Runway Centerline, Affecting Aircraft Lateral Control During Take‑Off And Landing.
View termcorrection de longueur de piste pour pente et température
Adjustment applied to declared runway length to account for runway slope and ambient temperature effects on aircraft performance.
View termdistance accélération-poursuite requise
Distance needed to accelerate to decision speed, experience an engine failure and continue take-off to 35 ft above runway.
View termdistance d'atterrissage disponible
Declared length of runway that is available and suitable for the ground run of an aircraft landing.
View termdistance d'atterrissage requise
Calculated distance an aircraft needs to land and come to a complete stop under existing conditions.
View termdistance de décision disponible
Distance from threshold to point on runway where go‑around decision altitude is reached, allowing a missed‑approach before runway end.
View termdistance de décollage disponible
Declared length of runway plus clearway that is available and suitable for the ground run of an aircraft taking off.
View termdistance de roulement au sol
The distance from brake-release or acceleration point to airplane lift-off during take‑off roll.
View termDécollage Température Flex
Take‑off Using An Assumed Temperature Higher Than Actual To Reduce Thrust And Prolong Engine Life While Meeting Performance Requirements.
View termExigence De Montée À L'approche
The minimum climb gradient that an aircraft must meet during the missed approach phase, considering one engine inoperative.
View termGradient De Montée Minimum
Lowest climb gradient required to ensure obstacle clearance or meet procedure design criteria.
View termgradient de montée à l’atterrissage
Minimum climb performance required during a go-around or missed approach with all engines operating.
View termlongueur d'aire d'arrêt
The length of a stopway usable in the event of a rejected take-off, beyond the take-off run available.
View termlongueur de l'aire dégagée
A defined rectangular area beyond the runway, free of obstructions, suitable for aircraft to continue take-off in case of engine failure.
View termlongueur de piste équilibrée
Runway length at which accelerate-go and accelerate-stop distances are equal under specified conditions.
View termlongueur de roulement de décollage disponible
Declared length of runway suitable for the ground run of an aircraft taking off, excluding clearway.
View termLongueur De Stopway
Length Of The Designated Area Beyond The Runway End That Can Be Used To Decelerate During A Rejected Take‑Off, As Part Of ASDA.
View termmasse au point de stationnement
The total weight of the aircraft while parked at the ramp, including fuel, payload, and all crew and equipment before engine start or taxi.
View termmasse opérationnelle de base
The weight of an aircraft including crew, unusable fuel, and all necessary fluids for operation, excluding payload and usable fuel.
View termmasse à vide opérationnelle
The weight of an aircraft including all standard items and operating fluids but excluding payload and usable fuel.
View termMatrice D’évaluation De L’état De Piste
Standardized Tool Used To Assign Runway Condition Codes Based On Surface Type And Contaminant Characteristics, Supporting Aircraft Performance Assessment.
View termmontée finale de décollage
Climb segment after acceleration and flap retraction up to en‑route climb altitude with one-engine inoperative.
View termmontée segment deux
Climb segment from gear retraction to acceleration altitude with one-engine inoperative, maintaining prescribed gradient.
View termPoussée Continue Maximale
The highest level of engine thrust that can be used continuously without time limitation under normal operating conditions.
View termPoussée De Décollage Dératée
Reduced engine thrust setting used for take-off to extend engine life, improve fuel efficiency, and meet noise abatement procedures.
View termPoussée De Décollage Réduite
Thrust Less Than Maximum Take‑Off Thrust Applied During Take‑Off To Increase Engine Life And Optimize Operational Efficiency.
View termProfondeur De Contamination Par L’eau
Vertical Thickness Of Water, Slush, Or Other Moisture‑Related Contaminants On The Runway Measured In Millimetres For Performance Calculations.
View termRapport D’action De Freinage
Pilot‑reported Assessment Of Actual Aircraft Braking Performance On A Runway Surface.
View termsurface de dégagement d’obstacles
Imaginary inclined plane established to ensure minimum safe vertical separation between aircraft flight paths and obstacles.
View termsurface de segment visuel
An obstacle‑free area beyond the runway threshold, providing required visual clearance during the final approach segment.
View termtaux de variation de température atmosphère standard
The rate at which temperature decreases with altitude under standard atmospheric conditions, 2 °C per 1000 ft or 6.5 °C per 1000 m.
View termtrajectoire de montée nette
Minimum vertical profile flown after take‑off, reduced from gross climb to ensure obstacle clearance following critical-engine failure
View termvent de travers maximum démontré
The highest crosswind component at which satisfactory control was demonstrated during aircraft certification flight tests.
View termvitesse calibrée
Indicated airspeed corrected for instrument and position errors, used for accurate performance calculations.
View termvitesse de référence d’approche
Speed selected for use on final approach segment, ensuring safe control margin above stall but stable profile.
View termvitesse de référence d’atterrissage
Target speed established by crew to optimize landing safety and performance, typically VREF plus wind correction.
View termvitesse de sécurité au décollage
Target airspeed reached after V2 during take‑off, providing sufficient climb gradient with one engine inoperative.
View termVitesse Maximale D'énergie De Freinage
The highest speed from which an aircraft can stop without exceeding the maximum brake energy limit, used to ensure brake system integrity and safety.
View termVitesse Maximale Du Pneumatique
The highest ground speed a tire can sustain without risking structural failure, defined by aircraft and tire manufacturers.
View termvitesse équivalente
Indicated airspeed corrected for compressibility effects at altitude, used for performance comparisons.
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