Model rockets are small (and not-so-small !!), reusable ballistic missiles usually constructed of cardboard, wood and plastic. They are often propelled upwards using expendable solid-fuel engines. Some manufacturers use alternate propellants, like pressurized air or water. At the end of the powered phase of flight, the rocket coasts for a few seconds before deploying its recovery system for a slow return back to Earth. For more information, visit www.flyrockets.com or NASA's website. What are you waiting for? Join the fun!! |