TOLD Definitions Flashcards
TRT
Takeoff rated thrust
Maximum allowable thrust
Limited to 5 min
MCT
Max continuous thrust
Max allowable thrust that may be used without a time limitation
MCRT
Max cruise thrust
Highest thrust setting that is recommended for use in cruise
Go around N1
Max allowable thrust for use during a go around limited by 104% N1, 700C ITT, or 2900 lbs of thrust
Vcef
Critical engine failure speed
Speed at which one engine can fail and the same distance is required to either continue to accelerate to lift off speed or to abort /decelerate
CFL
Critical field length
The total length of runway required to accelerate on all engines to critical engine failure speed, experience an engine failure, then continue to lift off or stop
Vmcg
Minimum controllable ground speed
88 Kias, during a takeoff 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 3 wheels on the runway
Do not exceed 180 lbs rudder force with boost active
Vmca
The minimum controllable speed 89 kias in the take off configuration out of ground effect with one engine inoperative and the remaining engine at TRT
Vr
Refusal speed
Max speed that can be attained with normal acceleration from which a stop may be completed within the available runway length
Vb
Max braking speed
Max speed from which the aircraft can be brought to a stop without exceeding the max brake energy limit of 14.8 million foot-pounds
When is acceleration check required?
Whenever S1 is less than Vrot
Define S1
The go/no go speed
S1 equation
Vmcg, Vcef, <= S1 <= Vr, Vrot, Vb
Vrot
Rotation speed
Speed at which the aircraft attitude is increased from the ground run(taxi) attitude to the lift off attitude
Vlof
Liftoff speed
Speed at which the main gear lift off the runway
