As of 22nd October 2015, there are currently 96Boeing 747-8 aircraft that are in service:- 36 747-8I Intercontinental- 60 747-8F Freighters
United Airlines currently has 24 Boeing 747-400 in service.
The 747 entered commercial service in January 1970 with Pan American between New York JFK and London.
A 747-400 with 3 classes of service holds about 416 passengers. With 2 classes of service it can hold 524 passengers.
January 21, 1970 was the first commercial use of the 747.
The first 747 in service was flown on January 22nd 1970 with Pan Am
The service ceiling of a Boeing 747 is 43,000 ft. The maximum is 45,000 ft.
The Boeing 747 has a service ceiling altitude of 43,100 ft (13,100 m)
there are many types of 747's
if you mean how many wheels is a Boeing 747, there are 18.
The first commercial flight for the 747 was on January 22nd 1970. Subsequent re-modelling has meant that the 747 has been in service over 46 years.
747 feet = 227.6856 meters.