RocketFun - Rocketry

RocketFun
The Basics

How Model Rockets Work
How Model Rockets Work
Model rockets are all reusable. Most require assembly. They have different shapes — a typical rocket is shown.

NOSE CONE: Guides airflow around the rocket (streamlines).

BODY TUBE: Main structural part (airframe), usually a strong paper tube.

RECOVERY SYSTEM: Device for getting the rocket back safely and intact for repeat use.

WADDING: Protects recovery system from hot ejection charge gasses.

LAUNCH LUG: Guides rocket straight off launcher.

FINS: Keep rocket traveling straight.

ROCKET engine: Safe, non-reusable device. A new engine is needed for each rocket flight.

ENGINE MOUNT: Holds engine in place.



How Model Rockets Fly
How Model Rockets Fly
Model rockets are all reusable. Most require assembly. They have different shapes — a typical rocket is shown.

1. IGNITION: By safe, electric igniter.

2. LIFT-OFF: From launch pad, powered flight starts.

3. COASTING: Powered flight ends, delay charge allows altitude gain.

4. APOGEE: Peak of flight, rocket arcs over.

5. EJECTION: Charge pressurizes inside of rocket and pushes recovery system out.

6. RECOVERY: Gentle descent to fly again.



How Rockets Engines Work
How Rockets Engines Work
1. IGNITION: Electric launch controller heats igniter placed into engine nozzle. Engine starts to create thrust.

2. LIFT-OFF: Engine develops thrust. Rocket takes off by action/reaction principle and rapidly accelerates.

3. COASTING: Propellant has been consumed. The tracking delay smoke allows rocket to coast to peak altitude.

4. APOGEE: The rocket reaches peak altitude, loses momentum and arcs over, pointing down as tracking delay smoke ends.

5. EJECTION: The final charge activates, causing expanding gasses to deploy the recovery system.