Sambil layan tenet slow gilo neh...i found interesting fact about jumbo...the 747 Family, (including the -400F, which is the freigher one.)
I found this in boeing website.. click here for the website.. :)
this 747 had been flying successfully for the past 30years..amazing uh?
here are interesting fact about 747...
A 747-400 has six million parts, half of which are fasteners. -whoa! nice uh?
A 747-400 has 171 miles (274 km) of wiring and 5 miles (8 km) of tubing.
A 747-400 consists of 147,000 pounds (66,150 kg) of high-strength aluminum.
The 747-400 has 16 main landing gear tires and two nose landing gear tires.
The 747-400 tail height is 63 feet 8 inches (19.4 m), equivalent to a six-story building.
The 747-400 wing weighs 95,000 pounds (43,090 kg), more than 30 times the weight of the first Boeing airplane, the 1916 B&W.
The 747-400 wing measures 5,600 square feet (524.9 m 2 ), an area large enough to hold 45 medium-sized automobiles.
Four World War I vintage JN4-D "Jenny" airplanes could be lined up on each of the Boeing 747 wings.
How much weight does an additional 6-foot (1.8-m) wingtip extension and winglet add to the 747-400 wing? None! A weight savings of approximately 5,000 pounds (2,270 kg) was achieved in the wing by using new aluminum alloys, which offset the weight increase of the wing tip extension and winglet
Engineering and Testing
Seventy-five thousand engineering drawings were used to produce the first 747. -i cant imagine how many person it tooks for this figure..remember...it isnt windows 7 or vista..ehhehehe
The first 747 completed more than 15,000 hours of wind-tunnel testing.
The original 747 flight test program, which led to the airplane's certification for commercial service in December 1969, used five airplanes, lasted 10 months and required more than 1,500 hours of flying.
for more interesting fact bout this aircraft you can lookup at boeing website.. :)