| Attribute | Gulfstream G450 × | Gulfstream III × |
|---|---|---|
| General | ||
| Manufacturer | Gulfstream Aerospace | Gulfstream Aerospace |
| Model | Gulfstream G450 | Gulfstream III |
| Country | United States | United States |
| Manufactured from (year) | 2004 | 1979 |
| Manufactured to (year) | 2018 | 1986 |
| Type | Heavy Business Jets | Midsize Business Jets |
| Icao | GLF4 | GLF3 |
| Performance | ||
| Engine | 2x 2 X Rolls Royce Tay Mk 611-8C | 2x Rolls-Royce Spey RB.163 Mk 511-8 |
| Power, lbf (lbf) | 13,850 | 11,400 |
| Avionics | PlaneView Cockpit , Honeywell Primus Epic avionics | Honeywell Primus Epic CDS/R |
| Max cruise speed (km/h) | 935 | 885 |
| Approach speed (km/h) | 257 | 250 |
| Travel range (km) | 8,056 | 6,945 |
| Fuel economy (km/l) | 0.479 | - |
| Service ceiling (m) | 13,716 | 13,716 |
| Rate of climb (m/sec) | 20.32 | 21.39 |
| Take off distance (m) | 1,706 | 1,550 |
| Landing distance (m) | 994 | 1,346 |
| Weights | ||
| Max take off weight (kg) | 33,838 | 31,615 |
| Max landing weight (kg) | 29,931 | 26,535 |
| Max payload (kg) | 2,722 | 2,040 |
| Fuel tank capacity (l) | 16,663 | 12,757 |
| Baggage volume (m³) | 4.8 | 4.5 |
| Dimensions | ||
| Seats | 16 | 19 |
| Cabin height (m) | 1.88 | 1.8 |
| Cabin width (m) | 2.24 | 1.9 |
| Cabin length (m) | 13.7 | 12.6 |
| Exterior length (m) | 27.23 | 25.3 |
| Tail height (m) | 7.67 | 7.4 |
| Fuselage diameter (m) | 2.4 | 2 |
| Wing span (m) | 23.7 | 23.7 |
| Wing tips | Blended Tips | Canted Winglets |