Technology Education Aerospace Power Plant Rocketry How a

Technology Education Aerospace Power Plant

Rocketry • How a Rocket Works • The Math and Science Behind a Rocket Engine.

Physics of a Rocket • Who is more powerful? • The Dodge Viper weighs 3410 Pounds • It Has 525 Foot Pounds of Torque

Your Rocket • Your Rocket Engine An Estes B 6 -4 Has 13. 5 Pounds of Thrust • However, Your Rocket Weighs Less Than Two Ounces

The Math Behind The Power To Weight Ratio • Dodge Viper 3410 Pounds /525 Ft Pounds = 6. 5: 1 Ratio • Your Rocket 2 Ounces/216 Ounces = 1: 108 Ratio Min.

Exhaust Velocity • Your Engines Exhaust Velocity is 2550 to 2650 Feet Per Second • 2550 Feet Per Second is Equal to 1, 738 Miles Per Hour

How A Rocket Engine Works • Combustion-A chemical change, especially oxidation, accompanied by the production of heat and light.

• Fuel-A material such as wood, coal, gas, or oil burned to produce heat or power. • Oxidizer-A substance that oxidizes another substance, especially one that supports the combustion of fuel; an oxidizing agent.

Types Of Rocket Engines • Solid Rocket Engines • Liquid Rocket Engines

Solid Rocket Engine Positive Things About Solid Rocket Fuel • Cheaper and Easier to Construct • Very Powerful • Will Store for Longer Periods of Time

Negatives • Will Not Stop Once Started • Cannot Control Throttle of Engine • Burns Short Period of Time

Parts Of Rocket Engine

Stages Of The Engine • Ignition • Burn • Coast – Rocket Slows Down • Ejection Charge – Blows Parachute Out

Ignition Source

Ignition

Coast Duration

Ejection Charge • Starts the Recovery System, at the Apogee of the Flight

Markings On The Engine