Chapter 4 - Performance Flashcards
Take-off distance available (TODA)” means…
… the length of the take-off run available plus the length of the clearway, if provided.
“Take-off flight path” means…
… the vertical and horizontal path, with the critical engine inoperative, from a specified point in the take-off for aeroplanes to 1 500 ft above the surface.
“Vmbe” means…
…the maximum brake energy speed.
“Vmca” means…
… the minimum control speed, air. It is the minimum speed in the air at which, when the critical engine suddenly becomes inoperative, it is possible to recover control of the aeroplane with that engine still inoperative, and maintain straight flight either with no yaw or with an angle of bank of not more than 5 degrees.
“Vmcg” means…
… the minimum control speed on or near ground. It is the minimum speed on the ground at which, when the critical engine suddenly becomes inoperative, is possible to maintain directional control of the aeroplane with the use of primary aerodynamic controls alone (without the use of nose wheel steering) to enable the takeoff to be safely continued using normal piloting skills.
“V1” means…
…the maximum speed in the takeoff at which the pilot must take the first action (e.g. apply brakes, reduce thrust, deploy speed brakes) to stop the aeroplane within the accelerate-stop distance. V1 also means the minimum speed in the takeoff following a failure of the critical engine at Vef, at which the pilot can continue the takeoff and achieve the required height above the takeoff surface within the takeoff distance. It is important to note that the required accelerate-stop distance is based on the assumption that the first action to stop the aeroplane is taking place at V1. V1 must not be less than VMCG or higher than VR.
“V2” means…
… takeoff safety speed. It means a referenced airspeed obtained after lift-off at which the required one-engine-inoperative climb performance can be achieved. V2 is equal to the actual speed at the 35 foot height as demonstrated in flight test and must not be less than 1.13 Vs in the takeoff configuration or less than 1.08 Vmca.
Noise Abatement Departure Procedure 1 (NADP 1)
• Initial climb speed shall be minimum V2 + 10 to 20 kts.
• At 800 ft above AD level, reduce power and continue climb with V2 + 10 to 20 kts with flaps and slats in take-off configuration.
• At 3000 ft above AD level, while maintaining a positive climb, accelerate and retract flaps/slats on schedule, then accelerate to en-route climb speed.
Noise Abatement Departure Procedure 2 (NADP 2)
• Initial climb speed shall be minimum V2 + 10 kts to 20 kts.
• At 800 ft above AD level, reduce ACFT body angle/pitch while maintaining a positive rate of climb, accelerate to flaps/slats retraction speed and either:
1) reduce power with the initiation of the first flaps/slats retraction; or
2) reduce power after flaps/slats retraction.
• Climb at VFZ (flaps/slats zero) + 10 to 20 kts to 3000 ft above AD level.
• On reaching 3000 ft above AD level, transition to normal en-route climb speed.
Vmbe means…
Maximum Brake Energy speed.
Maximum calculated allowed bank angle during Engine Failure Route?
Maximum calculated allowed bank in an engine failure route is 15 degrees from 50ft above the elevation end of take-off run to 400 ft height, and from above 400 ft height maximum 25 degrees bank.
(OM-B 4.4.4..7)
