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additional pallet position in the nose of the aircraft. These changes resulted in 774 cubic feet (21.9 cubic meters)
more cargo space on the main deck than on the -200F.
Two additional LD-1 or LD-3 containers will fit into the aft lower hold and - depending on the pallet and container
mix - two additional containers will fit into the forward lower hold - adding up to 700 cubic feet (19.8 cubic
meters) of additional containerized cargo volume in the lower hold.
The -400 Freighter's improved powered cargo-handling system makes for smooth, fast loading and unloading.
Eleven customers have ordered a total of 73 747-400 Freighters. Cargolux Airlines was the first to put the
4
BOEING 747-400 Jumbo Jet
advanced freighter into service in November 1993. Thirty-six of the -400Fs have been delivered.
Boeing has been the world leader in civilian air cargo since the 707 Freighter was introduced more than 30 years
ago. From its beginning in 1966, the 747 family was designed to include an all-cargo transport.
747 General Data
Boeing rolled out its 1,000th 747 from its wide-body factory at Everett, WA in 1994. A 747-400 model, it was
destined for Singapore Airlines. Since the first one was built in 1969, Boeing has delivered more than 1,235 747s
in all, worth a total of over $170 billion when adjusted for inflation. The 747-400 has been the best selling variant
with more than 567 orders and 491 delivered by the end of 1999.
Altogether, 747s have accumulated over 33 billion miles (52 billion km) and have carried more than 3.3 billion
people, the equivalent of more than half of the world's population. There are nearly 1,100 still in service.
747-400X
Initially Boeing studied a 920,000 lb (418,200 kg) gross weight version of the 747-400 that would add either
22,000 lb of payload or about 300 nm. to the aircraft's range. Much of the range improvement would result from
additional fuel in the tailplane torsion box and in the forward lower cargo bay. The stronger wings and landing gear
of the 747-400F also would be used.
Boeing announced in mid 2000 three 747 derivatives following the go ahead of the Airbus 3XX. Now it could be
argued that Boeing have been complacent for the last 15 years regarding the 747-400. They have however come
back with a vengeance and are offering alternative 747 developments all with a delivery date by 2005.
The derivatives, if Boeing decides to launch them, could be delivered to airlines sooner or at about the same time
as the A3XX. Top Boeing sales executives are briefing the world's 12 top 747 operators on the new versions to
assess demand and have visited several key Asia-Pacific carriers. Boeing's investment to upgrade the three 747
derivatives is estimated at about $4-billion, far less than $12.5-billion that Airbus is planning to spend on A3XX
development.
The new models Boeing is discussing with airlines include a 747-400X , which would be the same size as the
current 747-400 but use the strengthened 747-400F freighter wing and extra fuel tanks. It would have a
35,000-lb. heavier takeoff weight and 500 miles more range, to 8,850 statute miles. A typical three class seating
would be 416. The 747-400X could be available as soon as 2002.
Next up is the 747X with a highly modified wing and amongst many other improvements a review of the internal
arrangements giving something between 10 and 20 more revenue seats. The maximum take off weight goes over
one million pounds and the range increases to 18 hours or 10,300+ statute miles.
The 747X’s wing has a 210-in. wider span and the plane has more powerful engines. It would incorporate a slight
stretch to accommodate the larger wing box and carry 430 passengers, slightly more than today's 747-400.
A 747X Stretch model would share the 747X wing and incorporate fuselage extensions totaling 31-ft. It could
carry 504 passengers and fly almost 9,000 stat. mi. Both the 747X and 747X Stretch would have a maximum
takeoff weight of over 1-million lb. and be powered by four 68,000-lb. thrust engines. With a timely launch, they
could be delivered to first customers in early 2005, before the A3XX.
The 747X stretch can actually accommodate 660 people in a Japanese domestic high density layout, or 522 in the
typical three class operation, around 30 seats less than the 3XX. However, Boeing are claiming further range than
the Airbus, a higher cruising speed and lower noise plus, of course, commonality with current 747s. A freighter
version is also available.
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The 747-400 is currently the only model in production, and it is the best-selling member of the 747 family. Boeing
completely redesigned the 747 with the -400 model, making major aerodynamic improvements, adding winglets to
improve fuel efficiency, incorporating new avionics, installing a new flight deck and providing the latest in-flight
　
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