9.6 Cruise Performance

Typical Cruise Envelope

• Altitude: FL320 – FL390
• Speed: Mach 0.76 – 0.80

Efficiency Considerations

• Higher altitude → lower fuel burn
• Managed speed → optimal performance

Monitoring Requirements

Pilots must monitor:

• Fuel consumption
• Wind conditions
• Flight progress

Core Rule

“Cruise is about efficiency, not speed.”