What is the fastest speed human have reached?

By shahabahmadkhan

@shahabahmadkhan (1998)

India

January 18, 2007 7:56am CST

what is the speed of the fastest flying airplane?

2 responses

@manmaxman (850)

• India

31 Jan 07

the fastest speed human have reached is mark 4

@kritipen (4082)

• United States

30 Jan 07

I think it is a little more than 3 mach..i dont remember the exact number.