NASA reports that the SR-71, a high-performance jet, operates at altitudes below 85000 ft. http://www.nasa.gov/centers/dryden/news/FactSheets/FS-030-DFRC.html
Commercial airliners fly at about 35000 ft.
It's about 35,000 ft.
The B-52 is not a fighter, it is a heavy strategic bomber.
Depends on the plane but a fighter jet despences at 12 miles
Some are rated to 45,000 feet
Most modern jet fighters have a maximum speed in the range of Mach 1.5. They cruise at around Mach .95. The actual velocity as measured through the air will vary depending on temperature and pressure, which in turn vary with altitude.
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.
Depends what type of fighter jet it is
Messerschmitt AG invented the first fighter jet.
It's different for each type of "fighter" jets but it's roughly around 50.000 - 65.000 feet (15.000 - 20.000 meters) for fighter jets. Google it if you want specifics, it's called "Service Ceiling".
l don't know the name but its russian and goes 2195 mph
A fighter jet can be faster than the speed of sound.
Messerschmitt AG invented the first fighter jet.