What was the fastest jet plane?

liedetector2000:

The SR-71 Blackbird was the USED TO BE fastest jet in the world but now here is the LATEST and THE WORLD's FASTEST jet in the world.

Now the fastest jet is owned my NASA and is called X-43A.

it can reach the TEN TIMES THE SPEED OF SOUND. souring at above 33,223metres above earth. apparently, since it reaches 10 times the speed of sound, it's wings are tiny. it's nickname is the hyperjet. it's the next step to being opperated fastest in space.

At the heart of the X-43 is the scramjet or Supersonic Combustion Ramjet. You can think of it as an upgraded version of the ramjet - the kind of engine used by the SR-71. The Supersonic Combustion Ramjet basically takes in oxygen, which is needed for combustion, directly from the atmosphere. In order to create thrust, rockets mix liquid oxygen with liquid fuel. this makes this jet soo fuel efficient compared to others.

To give you an idea how fast the fastest jet in the world is, compared to others, imagine this: there are more than 30 jets that are faster than the speed of sound and yet almost all of them have top speeds either way below or only near Mach 3. Mach 9.6 is definitely way way faster than that.

more details here at

http://www.universetoday.com/40624/fastest-jet-in-the-world/