Jumbo Passenger Jets
Boeing 777-9
ICAO: B779
Overview
The Boeing 747-400ER was developed as a longer-range variant of the 747-400. Designed to carry additional fuel and payload over greater distances, it entered service in the early 2000s. The aircraft represented one of the final passenger developments of the classic 747 line.
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Specifications
Units
- Engine
- 4 × General Electric CF6 or Pratt & Whitney PW4062
- Engine type
- Turbofan
- Thrust
- 4 × 63,300 lbf · 282 kN
- Avionics
- Rockwell Collins DU-7001
- Wing tips
- Canted winglets
- Seats
- 624 economy · 524 business · 416 first
- Crew
- —
- Cabin width
- 20 ft 1 in · 6.13 m
- Cabin height
- 8 ft 4 in · 2.54 m
- Cabin length
- 187 ft 0 in · 57.00 m
- Exterior length
- 231 ft 10 in · 70.67 m
- Tail height
- 64 ft 3 in · 19.59 m
- Fuselage diameter
- 21 ft 4 in · 6.50 m
- Wing span
- 213 ft 0 in · 64.92 m
- Baggage volume
- 5,654 ft³ · 160.1 m³
- Gross weight
- —
- Empty weight
- —
- Max takeoff weight
- 910,000 lb · 413,000 kg
- Max landing weight
- 652,000 lb · 295,500 kg
- Max payload
- 148,000 lb · 67,000 kg
- Fuel capacity
- 63,500 gal · 240,300 L · 192,300 kg (Jet A)
- Max cruise speed
- 590 kt · 679 mph · 1,093 km/h
- Maximum speed
- —
- Cruise speed
- —
- Approach speed
- 147 kt · 169 mph · 272 km/h
- Range
- 7,670 nm · 8,830 mi · 14,200 km
- Fuel burn
- 0.12 nm/gal · 0.06 km/L
- Ceiling
- 43,000 ft · 13,100 m
- Rate of climb
- 1,500 ft/min · 8 m/s
- Takeoff distance
- 10,900 ft · 3,320 m
- Landing distance
- 7,150 ft · 2,180 m
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Operational Context
Boeing 747-400ER — extended-range widebody jetliner
The 747-400ER first flew in 2002 and entered service shortly thereafter. It incorporated structural strengthening and increased fuel capacity compared with the standard 747-400. The aircraft retained the recognizable hump-backed upper deck and four-engine configuration.
Powered by four high-bypass turbofan engines producing approximately 63,000 pounds of thrust (280 kN) each depending on engine selection, the 747-400ER cruises at around 490 knots (905 km/h). Maximum takeoff weight exceeds 910,000 pounds (412,800 kg). Seating capacity typically ranges from 350 to over 400 passengers depending on layout.
Only a limited number of passenger variants were built, primarily for airlines operating long-distance routes. The 747-400ER extended the operational flexibility of the 747 family. It remains a notable late-generation development of the jumbo jet.
Sources and references used for research and fact-checking.