Three main engines are installed on the Space Shuttle at the Kennedy Space Center in Florida. The Space Shuttle Main Eengine is the most reliable and highly tested large rocket engine ever built. Using liquid hydrogen and liquid oxygen as fuel, each shuttle main engine can generate between 305,000 and 512,300 pounds of thrust. The SSME's high-performance fuel turbopump generates 77,310 horsepower and its liquid oxygen turbopump produces 29,430 horsepower.
