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.
For other uses of the term, see Sonic Boom (disambiguation). Sonic Boom is the main theme song for the US version of Sonic the Hedgehog CD. There are two versions of the song: an upbeat, fast version that plays during the intro, and a slower version that plays at the ending. The lyrics were similar in the two versions, but had different instrumentation.