Introduction: Low Cost Air Rocket Launcher
Flying Air rockets is a relatively safe and inexpensive way for students to learn the basics of forces and the response of a vehicle to external forces. A model Air rocket is subjected to four forces in flight; weight, thrust, and the aerodynamic forces, lift and drag. There are many different types of model Air rockets. The first and simplest type of rocket that a student encounters is the compressed air, or AIR rocket. The air rocket system consists of two main parts, the launcher and the Paper rocket.
Launchers come in a wide variety of shapes and sizes. The launcher has a base to support the rocket during launch. A hollow launch tube is mounted perpendicular to the base and is inserted into the base of the rocket before launch. The launch tube is connected to empty water bottle by a hollow feeder line. The empty water bottle is used to pressurize the inside of the body tube to provide thrust for the rocket. For many air rockets, the pump or water bottle is simply a cylinder which can be collapsed by striking with your hand or foot, In our project, we are going to hit the bottle and launch the rocket.
The other part of the air rocket system is the rocket itself. The rocket has a hollow body tube which is opened on one end and closed at the other end by the nose cone. The body tube is only slightly larger than the launcher tube and launcher tube connected with empty water bottle, the rocket is placed on the launch tube, the body tube becomes a closed pressure vessel. The pressure inside the body tube equals the pressure produced by the water bottle. Fins are attached to the bottom of the body tube to provide stability during the flight.
Key words: Rocket launcher, paper rocket, Laws of motion, Fabrication technique, Physics curriculum ,Requirement
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