![]() The engines are gimbaled to provide pitch, yaw and roll control during the ascent. The engines can be throttled over a thrust range of 65 percent to 109 percent, which provides for a high thrust level during liftoff and the initial ascent phase but allows thrust to be reduced to limit acceleration to 3 g's during the final ascent phase. Photo credit: NASA/Kennedy Space Center.Įach Space Shuttle Main Engine operates at a liquid oxygen/liquid hydrogen mixture ratio of 6 to 1 to produce a sea level thrust of 179,097 kilograms (375,000 pounds) and a vacuum thrust of 213,188 (470,000 pounds). Image right: Space Shuttle Main Engines being installed on Discovery at the Orbiter Processing Facility at NASA's Kennedy Space Center. Temperatures in the main engine combustion chamber can reach as high as 6,000 degrees Fahrenheit (3,315.6 degrees Celsius). The propellants are partially combusted in dual preburners to produce high-pressure hot gas to drive the turbopumps.Ĭombustion is completed in the main combustion chamber. The fully-assembled Lego Saturn V rocket stands 3.28 feet tall (1 meter), making it about 1:111. The main engines develop thrust by using high-energy propellants in a staged combustion cycle. The space shuttle is Harkins first submission to the website since joining five years ago. ![]() Their turbines spin almost 13 times as fast as an automobile engine spins when it is running at highway speed. As they push the Shuttle toward orbit, the engines consume liquid fuel at a rate that would drain an average family swimming pool in under 25 seconds generating over 37 million horsepower. The engines' exhaust is primarily water vapor as the hydrogen and oxygen combine. The main engines burn liquid hydrogen - the second coldest liquid on Earth at minus 423 degrees Fahrenheit (minus 252.8 degrees Celsius) - and liquid oxygen. They create a combined maximum thrust of more than 1.2 million pounds.Īs the Shuttle accelerates, the main engines burn a half-million gallons of liquid propellant provided by the large, orange external fuel tank. Photo credit: NASAĪfter the solid rockets are jettisoned, the main engines provide thrust which accelerates the Shuttle from 4,828 kilometers per hour (3,000 mph) to over 27,358 kilometers per hour (17,000 mph) in just six minutes to reach orbit. Click image to play video of engines firing on launch (no audio). Image left: The Space Shuttle Main Engines provide part of the thrust that sends the Shuttle into orbit. ![]() The main engines continue to operate for 8.5 minutes after launch, the duration of the Shuttle's powered flight. The three Space Shuttle Main Engines, in conjunction with the Solid Rocket Boosters, provide the thrust to lift the Orbiter off the ground for the initial ascent. NASA Space Shuttle Discovery 10283-1 (2355 parts) Icons 2021 FOLLOWERS 516 LIKES 206 Build this MOC Create an account and enter your LEGO collection to find out if you can build this MOC 17,300 May 3, 2021, 1:10 p.m.
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