Runway length calculation

III.6.3 Input for runway length calculation:

 

C601
Roll friction coefficient 0.03
max. break delay (g) 0.35
Reaction time (sec) 2.5
Weight factor 1.15
CA^ with flaps 2.5
max flap angle (°) 25
CD0 with flaps & gears 0.016
Density (kg/in ) 1.225
Engine number 4
Thrust /weight 0.263
Wing load (kg/m2) 700
Wing aspect ratio 8.32

Runway Length according to FAR25 C601

Take-off Weight Range with 100% pax Required Runway
kg km m
531000 13300 3300
511000 12100 2900
491000 10900 2600
471000 9650 2400
451000 8300 2100

20

 

An UHCA was born