Common 747-400 reference values. Verify every figure against the FCOM before relying on them — variant, tail, and AOM differences apply.
VMO (max operating) | 365KIAS |
MMO (max Mach) | 0.92 |
VA (maneuvering) See FCOM weight/altitude chart | Variable |
Turbulence Penetration | 290 / 0.82KIAS / M |
Flaps 1 — Max | 290KIAS |
Flaps 5 — Max | 270KIAS |
Flaps 10 — Max | 240KIAS |
Flaps 20 — Max | 230KIAS |
Flaps 25 — Max | 205KIAS |
Flaps 30 — Max | 180KIAS |
Gear Extended (VLE) | 320 / 0.82KIAS / M |
Gear Operating (VLO ext/ret) | 270 / 270KIAS |
Tire Limit Speed | 235KGS |
MTOW Variant-dependent — verify per tail | 910,000lbs |
Max Landing Weight Variant-dependent | 630,000lbs |
Max Zero Fuel Weight Variant-dependent | 610,000lbs |
Max Taxi Weight | 912,000lbs |
Max Operating Altitude | 45,100ft |
Max Takeoff/Landing Altitude | 8,400ft |
Max Altitude with Flaps Extended | 20,000ft |
Max OAT for Takeoff | 55 / ISA+40°C |
Min OAT for Operations | -65°C |
Fuel Temperature Minimum | -43 (Jet A) / -47 (Jet A-1)°C |
N1 Max (Takeoff) | 117.5% |
N2 Max | 112.5% |
EGT Takeoff (5 min) CF6-80C2; verify variant | 960°C |
EGT MCT | 925°C |
Oil Pressure Minimum | 40psi |
Oil Temp Continuous Max | 155°C |
Fuel Imbalance Max (Main 1/4 to 2/3) | 4,000lbs |
Max Cabin Differential Pressure | 9.4psi |
Max Crosswind (Dry) Demonstrated | 30kts |
Max Crosswind (Wet) | 25kts |
Max Tailwind (T/O & LDG) | 15kts |