Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Take-off rated thrust
|
Take-off rated thrust is the maximum allowable thrust (determined by fan speed, N1). It varies with pressure altitude, ram air temperature, and bleed air usage. Operation of TRT is limited to 5 minutes.
|
|
|
Maximum continuous thrust
|
Maximum continuous thrust is the maximum allowable thrust (determined by fan speed, N1) that may be used without a time limitation. Maximum continuous thrust varies with pressure altitude, ram air temperature, and bleed air usage.
|
|
|
Runway available
|
The runway length minus any unusable portion of the runway such as the aircraft lineup distance or barriers on or above the runway.
|
|
|
Runway length
|
Runway length is the paved surface length excluding any overrun.
|
|
|
Critical engine failure speed
|
Critical engine failure speed is defined as the speed at which one engine can fail and the same distance is required to either continue to accelerate to lift-off speed or abort and decelerate to a full stop.
|
|
|
Critical field length
|
The critical field length is the total length of the runway required to accelerate on all engines to critical engine failure speed, experience an engine failure, then continue to lift-off or stop. It is used during takeoff planning together with the climbout data to determine maximum gross weight for a safe takeoff and climbout. For a safe takeoff, the critical field length must be no greater than the runway available.
|
|
|
Take-off factor
|
Take-off factor numbers are %N1 settings adjusted for OAT and altitude and are presented on a different scale.
|
|
|
Take-off ground run
|
Take-off ground run is defined as that runway distance normally obtained in service operation at zero wind at the mission-specified weight, pressure altitude, thrust setting, ambient temperature, and appropriate take-off configuration using lift-off speed.
|
|
|
Minimum control speed ground (Vmcg)
|
Ground minimum control speed, Vmcg (88KIAS), is the minimum controllable speed during the take-of run, at which, when an engine is failed, it is possible to maintain directional control using only primary aerodynamic controls without deviating more than 25 feet laterally with all three wheels on the runway. The speed is established with the remaining engine at the takeoff thrust setting, the aircraft loaded at the most unfavorable weight and center of gravity, and the aircraft is trimmed for takeoff, without exceeding 180 pounds of rudder control force by the pilot with the rudder boost system operating. Conditions of crosswind and RCR may increase Vmcg.
|
|
|
Minimum control speed air (Vmca)
|
Air minimum control speed, Vmca (89KIAS), is the minimum controllable speed in the takeoff configuration out of ground effect with one engine inoperative and the remaining engine at takeoff rated thrust. Vmca is determined at the most critical combination of asymmetric thrust, lightweight, and aft center of gravity. The speed is established with the aircraft trimmed for takeoff, 5 degrees angle of bank into the operating engine and no more than 180 pounds of rudder control force by the pilot with the rudder boost system operating. Vmca is always less than takeoff speed and is not considered in takeoff planning.
|
