1) An airplane made by Boeing, competetor of Airbus. It is the fastest subsonic jet in the world, crusing at .855 Mach, or 85% of the speed of sound. The 747-400 can seat up to 630 passengers. It has 4 engines; however, it can still fly with only two operational engines. It is used for international flights.\n> 1) When we flew from San Francisco to Taipei, we flew on a 747-400.\n

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