Modern Airliners

Boeing 747 8 Specs. What makes the newest 747 Jumbo tick?

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Boeing 747 8 Specs.

Boeing 747 8 Specs, shown below will illustrate how the Boeing 747 8 Freighter and 747 8 Intercontinental are the largest iterations of the classic Boeing 747 model which has ruled the skies for four decades. It is the largest and heaviest aircraft produced in the United States.

The new 747 8 is the next generation of this iconic aircraft and benefits from technologies and enhancements that were used to create the Boeing 787 Dreamliner.  New wing technology, engine technology and also increased length enables a larger passenger or cargo payload to be carried.

As we have seen, however, like the Airbus A380, the 747 8 has come to market at a time when interest in large 4 engine jets is waning. The day of the giant twin-engined jets is at hand, fairly well sealing the doom of the jumbos. Fortunately for Boeing, the original design of the Boeing 747 with the cockpit located in the top bubble allowed for a nose door to be installed. Initially, it was not assumed that the passenger version of the 747 would catch on, so Boeing took an each-way bet and ensured the design would fit freight airliners needs, should the passenger version fail. By having the cockpit raised above the main deck, cargo can therefore be passed longitudinally through the nose door along the main deck. This allows for longer items to be easily loaded. Airbus, with their A380, do not have that same luxury.

…. insertion of an extra 5.6 metres….

Below you can see where the extra length was inserted on the 747 8 Intercontinental passenger version as well as the 747 8 Freighter version. The insertion of an extra 5.6 metres (220 inches) of length as compared to the Boeing 747 400 is slightly different for the 747 8 Intercontinental as compared to the 747 8 Freighter.  For the 747 8 Freighter, this is done by inserting an extra 4.1 metres of fuselage length at the forward wing root.  The purpose for this is to do it behind the upstairs bubble and thereby not increase the bubble size but rather make it smaller, more reminiscent of the Boeing 747 100 and Boeing 747 200 series.    The 747 8 Freighter does not carry passengers, therefore, the bubble is redundant other than the house the cockpit.  The 747 8 Intercontinental, on the other hand, has the forward insertion of 4.1 metres (220 inches) placed forward of the wing root so that it takes in the upstairs bubble as well.  This way the upstairs bubble, as well as the main deck, are extended, increasing the seating capacity dramatically.  By how much exactly depends on the airline and what seat pitch they want to apply.  Both the 747 8 Freighter and the 747 8 Intercontinental have an insertion of 1.5 metres behind the wing root in the same place.

Boeing 747 8 Specs Fuselage Extension.

This shows where the additional length was inserted as compared to the Boeing 747 400.

Boeing 747 8 Specs example seating plan.

A Boeing 747 8 Intercontinental cabin plan for 450 passengers. This would vary from airline to airline depending on the cabin density they are aiming for.

Boeing 747 8 Specs Table

  Boeing 747-8i Intercontinental Boeing 747-8f Freighter
Cockpit Crew 2 2
Average Price US$378.5 Million US$379.1 Million
Seating Capacity (Maximum) 605 N/A
Seating Capacity (Three Class) 467 N/A
Overall Length 76.25 Metres (250 feet, 2 inches) 76.25 Metres (250 feet, 2 inches)
Wingspan 68.45 Metres (224 feet, 7 inches) 68.45 Metres (224 feet, 7 inches)
Wing Area 554 Metres2 (5,963 feet2) 554 Metres2 (5,963 feet2)
Height 19.35 Metres (63 feet, 6 inches) 19.35 Metres (63 feet, 6 inches)
Cabin Width 6.1 Metres (20 feet, 1 inch) 6.1 Metres (20 feet, 1 inch)
Maximum Take-off Weight 447,696 Kilograms (987,000 Pounds) 447,696 Kilograms (987,000 Pounds)
Maximum landing weight 312,000 Kilograms (688,000 Pounds) 343,000 Kilograms (757,000 Pounds)
Maximum zero fuel weight 295,000 Kilograms (651,000 Pounds) 330,000 Kilograms (727,000 Pounds)
Operating Empty Weight 220,128 Kilograms (485,300 Pounds) 197,131 Kilograms (434,600 Pounds) 
Maximum structural payload 76,700 Kilograms (169,100 Pounds) 134,200 Kilograms (295,800 Pounds)
Maximum fuel capacity 238,610 Litres (63,034 US gallons) 226,095 Litres (59,734 US gallons)
Cruising Speed at 35,000 feet Mach 0.855 (570 mph, 495 knots, 917 km/h) Mach 0.845 (564 mph, 490 knots, 908 km/h)
Maximum speed at 35,000 feet Mach 0.92 (614 mph, 533 kn, 988 km/h) Mach 0.92 (614 mph, 533 kn, 988 km/h)
Range 7,790 nmi (8,966 mi; 14,430 km)at MTOW with 467 passengers and baggage 4,120 nmi (4,741 mi; 7,630 km) at full payload (134,000 kg(295,800 lb))
Fuel Burn 11,350 litres/3,000 gallons per hour averaged over a 14 hour flight.
Fuel Type Kerosene known as Jet-A or Jet A-1(has a slightly lower freezing point.)
Cargo capacity 161.5 Cubic Metres (5,705 Cubic feet) 854.5 Cubic Metres (330,177 Cubic feet)
Service ceiling 43,000 ft (13,000 m) 43,000 ft (13,000 m)
Engines (4x) GEnx-2B67 GEnx-2B67
Thrust (4x) 66,500 lbf (296 kN) 66,500 lbf (296 kN)

For some very detailed Boeing 747 8 Specs and maintenance information, click here.

If there is more you want to learn about this airliner, please visit: Boeing 747 8 Home, Boeing 747 8 Interior, Boeing 747 8 Order Book, Boeing 747 8 History, and Boeing 747 8 Assembly,

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