So if you multiply torque (in pound-feet) by engine speed (in RPM) and divide the product by 5,252, RPM is converted to radians per second and you can get from torque to horsepower -- from pound-feet to foot-pounds per second..
Did it explode? Nope! You can still see it flying. Then what was that sound? It was a sonic boom. A sonic boom is a loud sound kind of like an explosion. It's caused by shock waves created by any object that travels through the air faster than the speed of sound. Sonic booms create huge amounts of sound energy. When an object moves through the air, it makes pressure waves in front of and behind it.
Find out what a sonic boom is, and how you can create it in the privacy of your own household. Advertisement. The one-line explanation for a sonic boom is this: A sonic boom is the shock wave that is produced when an object breaks the sound barrier.