Operating Limitations (GE)

The engine operating limits are as follows:

Speed, Temperature and Time Limits
(GE CF6-80)
Operating
Condition
N1 N2 Max EGT Time Limit
Ground Start     750°C Unrestricted
870°C 40 seconds
Low Idle 19.8 min - - Unrestricted
Max Cont
(Amber Band)
tbc tbc 925°C Unrestricted
Takeoff
(Red Line)
117.5 112.5 960°C 5 mins

  • 100% N1 = 3854 LP RPM
  • 100% N2 = 11055 HP RPM

Boeing Maintenance Manual