What Is Model Rocketry?
  During the “space race” era of the 1950s and 60s, interest in rockets grew rapidly. Young amateur scientists eagerly built their own homemade rockets, using metallic airframes and a dangerous mix of propellants. Accidents and injuries were inevitable. Model rocketry answered the call for a safe, fun and educational alternative to such risky experimentation.
  Today, you can purchase model rocket kits and supplies right here on the Internet from rocketfun.com. The variety is astounding. Simple starter kits — highly recommended for newcomers to the hobby — often can be ready to launch as quickly as 30 minutes after you buy them. Model rocketry has also developed into a sport which allows hobbyists to compete with each other in spot landing contests and design events.
  And the safety of model rocketry is carefully guarded by the National Association of Rocketry. This independent organization of hobbyists sets the safety standards for the hobby — standards which rocketry manufacturers voluntarily support.

The Basics of Model Rocketry
  Unlike those rockets pieced together by early amateurs, today’s model rocket kits are constructed of very safe materials, such as cardboard, plastic and balsa wood. They’re fueled by rocket engine. These engines can be used only once, and are manufactured to strict safety specifications. The hobbyist NEVER needs to mix, pack, or work with explosives or propellants. Engine sizes range from “1/4A”, the least powerful, to “G” — which offers enough thrust to lift a six-foot rocket AND a hefty payload!
  Though each engine lasts for just one flight, the rockets themselves may be flown over and over again. You simply replace the used engine with a fresh one. Model rockets typically carry a parachute, streamer or other recovery device that returns them to Earth gently for repeated flights.

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