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Thiokol

Space Shuttle RSRM

Easily the most monstrous piece of hardware we have on this site, each Shuttle solid rocket booster puts out thrust equivalent to TWO Apollo F-1 engines. And there are two on each STS. Combine this with the three Shuttle main engines and a Shuttle at liftoff has as much thrust as a Saturn 5. Shuttle RSRM
Engine statistics
Specification
Sea level thrust 3,300,000 lb
Weight 1,300,000 lb
Mass Fraction .85
Propellant ammonium perchlorate/aluminum
Burn time 75 s
Expansion Ratio 11.3