01:32 - missile launch sound volume alert! One of the best missile videos made by civilians! Missile accelerates only for the first 10 seconds of flight, at a constant rate of 15G's (500 feet p/sec or 150 meters per second) and at the end of the 10th second it's travelling at 3200 ft/sec (960 m/sec) which is the velocity of an M-16 rifle ammunition and has reached an altitude of 25 000 feet (8 km) where rocket motors cut off after which the missile continues to climb using it's inertia only. Eventually it reaches 120 00 feet, or 36 kilometers!More info at ddeville.com/derek/Qu8k.html