The F-1 engine was developed to provide propulsion for the Saturn 5 rocket used during the Apollo lunar landing missions. Developed during the early 1960s, the Saturn 5 rocket was the largest rocket in the world and the F-1 was the most powerful rocket engine.
Five F-1 engines were clustered at the base of the first stage of a Saturn 5. They developed 3,450,000 kilograms (7,610,000 pounds) of thrust at lift off, and burned 2,021,000 liters (534,000 gallons) of liquid propellants in the 2 1/2 minutes before first stage burnout. By then the big rocket had reached 9,660 kilometers per hour (6,000 miles per hour) and an altitude of 61 kilometers (38 miles).
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