TAKEOFF SAFETY TRAINING AID(6)

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Thrust at V1, Lbs per engines  17.744  17.744  0 Lbs 
Far field length ---ft  9002  9468  466 ft 
Accelerate-stop distance (engine-out) ---ft  8760  9468  708 ft 
Accelerate-go distance (engine-out) ---ft  9002  9468  466 ft 
Accelerate-go distance (all-engine) ---ft  7236  7811  575 ft 
Second segment gradient %  2.68  2.68  0.0 % 
Second segment rate of climb ---ft per minute  419  438  - 19 Fpm 

 

Reduced Thrust Examples
Airbus Model A321-112
And example of the conservatism inherent in the use of the assumed (flexible) temperature method of reduced thrust calculation.
Conditions A321-112
CFM56-5B2
Sea level
O A T = 15°C
9459ft runway
Actual airplane weight = 85 T permits assumed (flexible) temperature of 40°C
Parameters  Actual temp is 15°C and assumed (flexible) temp is 40°C  Actual temp is 40°C  Margin 
N1 (%)  93.6  93.6 
V1 (KT IAS/TAS)  150 / 147  150 / 153  - 6 KTAS 
VR (KT IAS/TAS)  158 / 155  158 / 162  - 7 KTAS 
V2 (KT IAS/TAS)  159 / 158  159 / 165  - 7 KTAS 
Thrust at V1, Lbs per engines  23.451  23.451  0 Lbs 
Far field length (ft)  8859  9459  600 ft 
Accelerate-stop distance (engine-out) ---ft  8547  9459  912 ft 
Accelerate-go distance (engine-out) ---ft  8859  9459  600 ft 
Accelerate-go distance (all-engine) ---ft  7393  7970  577 ft 
Second segment gradient %  2.4  2.4  0.0 % 
Second segment rate of climb ---ft per minute  387  401  - 14 Fpm 

 

Reduced Thrust Examples
Airbus Model A330-301
And example of the conservatism inherent in the use of the assumed (flexible) temperature method of reduced thrust calculation.
Conditions A330-301
CF6-80E1A2
Sea level
O A T = 15°C
9710ft runway
Actual airplane weight = 212 T permits assumed (flexible) temperature of 40°C
Parameters  Actual temp is 15°C and assumed (flexible) temp is 40°C  Actual temp is 40°C  Margin 
N1 (%)  102.5  102.5 
V1 (KT IAS/TAS)  148 / 148  148 / 155  - 7 KTAS 
VR (KT IAS/TAS)  150 / 150  150 / 156  - 6 KTAS 
V2 (KT IAS/TAS)  155 / 155  155 / 162  - 7 KTAS 
Thrust at V1, Lbs per engines  50.347  50.347  0 Lbs 
Far field length (ft)  9103  9710  607 ft 
Accelerate-stop distance (engine-out) ---ft  8916  9710  794 ft 
　
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