Current is measured in Amperes (usually just referred to as âAmpsâ). An ampere is defined as 6.241*10 18 electrons (1 Coulomb) per second passing through a point in a circuit. Amps are represented in equations by the letter âIâ.
The X-1, piloted by Chuck Yeager, was the first manned airplane to exceed the speed of sound in level flight and was the first of the X-planes, a series of American experimental rocket planes (and non-rocket planes) designated for testing of new technologies and often kept secret.
The new planes will have super-powerful engines that will let the planes nudge the sound barrier at Mach 0.92, faster than the current 747-200s. There will not, however, be an escape pod like the one depicted in the 1997 hijacker movie Air Force One featuring Harrison Ford as president. - Marine One fiasco -.