Shuttle+Rockets

= My Device = //The Space Shuttles Main Rockets (SSME)//

Purpose
//The purpose of the Space Shuttle Main Engines (SSME) is to provide lift during take off along with the Rocket Boosters (also called solid boosters) on the picture on top. Its main purpose is to allow the Shuttle to make changes in its course out in space//.

Energy
//Kinetic Energy is the energy beings used or change when the Shuttle takes off the launch pad.//

Controls
//The Space Shuttle Main Engine Controllers (SSME) is controlled by two digital computers which control the main engine components and operations. Each computers controls engine sensors, valves, actuators, engine controls and monitoring the status of the engines. Its also known as General-Purpose Computers.//

Materials
//Oxidizer Pre-burner, High Pressure Oxidizer Turbo-pump, Low pressure Fuel turbo-pump, controller, propellant valves, hydraulic actuators, nozzle, main combustion chamber, high pressure fuel turbo-pump, hot gas manifold, fuel pre-burner, main injector, low pressure oxidizers, turbo-pump.//

Science
//In order for the Shuttle to lift off the launch pad, there are different systems that need to be activated. First is the need of an efficient combustion, for it to occur the oxidizer and fuel pre-burners need to weld to a hot-gas manifold. They’re both mixed in order to efficient combustion to occur. The ignition is a series of chambers located in the center of the injector of each pre-burner. The engine controller activates the ignition. The pre-burners produce the fuel-rich hot gas that passes through the turbines to generate the power to operate the high-pressure turbo-pumps. The speed of the HPOTP and HPFTP turbines depends on the position of the corresponding oxidizer and fuel pre-burner oxidizer valves. These valves are positioned by the engine controller, which uses them to throttle the flow of liquid oxygen to the pre-burners and, thus, control engine thrust. HPOTP and HPFTP turbine speed, and liquid oxygen and gaseous hydrogen flow into the main combustion chamber, which increases or decreases engine thrust, thus throttling the engine. When an engine is operating, the main valves are fully open.// (HPOTP: High Pressure Oxidizer Turbo-pump and HPFTP: High Pressure Fuel Turbo-pump.)

Design
//It looks just like your normal jet plane but without the jet/propeller engines on it. It has to glide back to base when it enters the atmosphere. The SSME is only use in Space and rare in the atmosphere. //

Evolution
//Little to no changes have been made on the Shuttle's engine. They have been replaced with a newer more efficient engine and more safer.// Each engine is replaced after each mission to ensure safety to the crew and the Orbiter.

Competitors
//Other devices that uses the same principle as the SSME is other rockets such as the one on the Siblings tab. Missiles or Rockets are almost the same.//

Partners
//Space// //shuttle, Solid rocket booster, The Crawler, LC-39 and the LCC (Launch Control Center)//

Siblings
//The Solid Rocket Booster, Saturn V, Saturn INT-21, Ares V, Zenit-2, Ariane V, Delta IV, Atlas V, Soyuz Rockets, Diament, Angara, Athena, Falcon, Juno II, Pegasus, Taurus and the Titan IV. The Space Shuttles: Atlantis, Challenger, Columbia, Discovery, Endeavor and Enterprise. (Only Atlantis, Discovery and Endeavor are operational)//

For more information's on the Space Shuttles visit the following sites:
[|Space Shuttle Main Engine (SSME)] [|The Space Shuttle Manual]