Some are rated to 45,000 feet
The cruising altitude of a normal commercial jet airplane today is around 12,000 m (35,000 ft).
It's about 35,000 ft.
The maximum take off weight for a 747-400 is 875,000 pounds (396,890 kg.).
Empty weight: 538,000 pounds Maximum takeoff weight: 870,000
A Boeing 747 is a jet aircraft, so this is a strange question.
The maximum altitude of any military aircraft is dependent on many things including the type of craft. The maximum altitude for a military jet is approximately 60 thousand feet. At that level the flight crew will need special equipment to allow them to breathe and stay conscious in the thin air.
Boing 747's, popularly known as Jumbo Jets, typically cruise at around 32,000 to 38,000 feet altitude. This is between about 6 and 7 miles high.
The company is Boeing. Anyway the jet plane is called Boeing 747.
Boeing
A Jumbo Jet is any Boeing 747.
in which year did the Boeing 747 Jumbo jet make its maiden journey?
The 747 was made by boeing.