Part 1 of Essay
A model rocket is a miniature rocket patterned after military or space rockets. usually eight less than 4.5 kilograms. Many of them measure between 20 and 61 centimeters long. can elevate as high as 480 kilometers an hour.(Rocket,Model World Book Encyclopedia 1992) Rocketry is dated back to 1048 AD were the Chinese knew ....

Part 2 of Essay
.... The engine holder is a ring cemented inside the bottom of the body tube. The rockets engine fits in the holder. The engine of most rockets consists of a thick cardboard tube that contains the solid fuel. The nose cone forms the top of a model rocket. It has a rounded point to reduce air resistance. The recovery device which consists of a parachute. The parachute is used to return the rocket safely back to the ground. The launch system consists of a launch pad and an engine ignition system. A typical launch pad is ....