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National Association of Rocketry


AlphaIII
This is the type of rocket I use

Rocket Engine Rocket Flight Stages
This is a view of the inside of a rocket engine. This is a rocket flight stage picture.

Rockets
These are some of the many types of rockets.

Rocket Launch

Rockets launch from a stand (Launch Pad) that deflects engine exaust away from the ground. A rocket is set up so that the engine is ignited from a distance using an electric igniter. The rocket must have a recovery system for slowing decent. In most cases, a parachute (in the nose) is used. The parachute is deployed by a small explosion at the top of the engine when all the rest of the fuel has beed depleted. To protect the the parachute from being melted or otherwise damaged, fire/heat retandand "Wadding" it put in just below the parachute. The hot exaust gasses push the wadding and the parachute out through the top of the rocket. The nose pops off (It is still attached to the rocket with a cord) and the parachute deploys. There are other types of recovery systems available. One example is three blades rotating like a helecopter arount the top of the rocket. The blades are folded along the sides of the rocket until the rocket startes it's decent. The air moving past the blades from the bottom opens them and they start spinning.


Model Rocketry Safety Code

Certification: I will fly high power rockets only when certified to do so by the National Association of Rocketry.

Operating Clearances: I will fly high power rockets only in compliance with Federal Aviation Regulations Part 101 (Section 307, 72 Statute 749, 49 United States Code 1348, "Airspace Control and Facilities," Federal Aviation Act of 1958) and all other federal, state, and local laws, rules, regulations, statutes, and ordinances.

Materials: My high power rocket will be made of lightweight materials such as paper, wood, rubber, and plastic, or the minimum amount of ductile metal suitable for the power used and the performance of my rocket.

Motors: I will use only commercially-made, NAR-certified rocket motors in the manner recommended by the manufacturer. I will not alter the rocket motor, its parts, or its ingredients in any way.

Recovery: I will always use a recovery system in my high power rocket that will return it safely to the ground so it may be flown again. I will use only flame-resistant recovery wadding if wadding is required by the design of my rocket.

Weight and Power Limits: My rocket will weigh no more than the motor manufacturer's recommended maximum liftoff weight for the motors used, or I will use motors recommended by the manufacturer of the rocket kit. My high power rocket will be propelled by rocket motors that produce no more than 40,960 Newton-seconds (9,204 pound-seconds) of total impulse.

Stability: I will check the stability of my high power rocket before its first flight, except when launching a rocket of already proven stability.

Payloads: My high power rocket will never carry live animals (except insects) or a payload that is intended to be flammable, explosive, or harmful.

Launch Site: I will launch my high power rocket outdoors in a cleared area, free of tall trees, power lines, buildings, and dry brush and grass. My launcher will be located at least 1,500 feet from any occupied building. My launch site will have minimum dimensions at least as great as those in the Launch Site Dimension Table. As an alternative, the site's minimum dimension will be one-half the maximum altitude of any rocket being flown, or 1,500 feet, whichever is greater. My launcher will be no closer to the edge of the launch site than one-half of the minimum required launch site dimension.

Launcher: I will launch my high power rocket from a stable launch device that provides rigid guidance until the rocket has reached a speed adequate to ensure a safe flight path. To prevent accidental eye injury, I will always place the launcher so the end of the rod is above eye level or I will cap the end of the rod when approaching it. I will cap or disassemble my launch rod when not in use and I will never store it in an upright position. My launcher will have a jet deflector device to prevent the motor exhaust from hitting the ground directly. I will always clear the area for a radius of ten feet around my launch device of brown grass, dry weeds, or other easy-to-burn materials.

Ignition System: The system I use to launch my high power rocket will be remotely controlled and electrically operated. It will contain a launching switch that will return to "off" when released. The system will contain a removable safety interlock in series with the launch switch. All persons will remain at a distance from the high power rocket and launcher as determined by the total impulse of the installed rocket motor(s) according to the accompanying Safe Distance Table.

Launch Safety: I will ensure that people in the launch area are aware of the pending high power rocket launch and can see the rocket's liftoff before I begin my audible five-second countdown. I will use only electrical igniters recommended by the motor manufacturer that will ignite rocket motors within one second of actuation of the launching switch. If my high power rocket suffers a misfire, I will not allow anyone to approach it or the launcher until I have made certain that the safety interlock has been removed or that the battery has been disconnected from the ignition system. I will wait one minute after a misfire before allowing anyone to approach the launcher.

Flying Conditions: I will launch my high power rocket only when the wind is no more than 20 miles per hour and under conditions where the rocket will not fly into clouds or when a flight might be hazardous to people, property, or flying aircraft. Prior to launch, I will verify that no aircraft appear to have flight paths over the launch site.

Pre-Launch Test: When conducting research activities with unproven designs or methods I will, when possible, determine the reliability of my high power rocket by pre-launch tests. I will conduct the launching of an unproven design in complete isolation from persons not participating in the actual launching.

Launch Angle: I will not launch my high power rocket so its flight path will carry it against a target. My launch device will be pointed within 20 degrees of vertical. I will never use rocket motors to propel any device horizontally.

Recovery Hazards: If a high power rocket becomes entangled in a power line or other dangerous place, I will not attempt to retrieve it. I will not attempt to catch my high-power rocket as it approaches the ground.