Celestial force
© Getty
April 2017

Celestial force

By Volker Paulun
The five “Saturn V” F-1 rocket engines rest at Kennedy Space Center in Florida, “stiff and still”: every one of them 5.6 m (18 ft) tall and weighing 9.1 t (20,180 lb). In spite of having been out of service for more than 40 years, they continue to rank among the world’s most powerful engines.

Converted to horsepower, each delivers 32 million HP, although thrust, which in this case is 6.67 MN each, is the more decisive criterion for a rocket engine.  It doesn’t take a lot of imagination to picture the awesome energies unleashed by five of these F-1s when they were ignited to launch a Saturn rocket. The five turbo fuel pumps, each delivering 54,900 horsepower, would press 15 t (33,069 lb) of a kerosene and liquid ­oxygen mixture into the combustion chambers in which temperatures would rise to over 3,000 °C (5,432 °F).

There is no easy way from the Earth to the stars

Lucius Annaeus Seneca

The amount of energy released just during lift-off of the 2,938 t (6,478,000 lb) “Saturn V,” the rocket that was used to propel “Apollo 11” to the Moon and for other missions, could have supplied all of New York City with electricity for 75 minutes. NASA is currently developing the “Space Launch System” as the successor of the “Saturn V” heavy-lift rocket that is to set new records in terms of thrust and payload and use RS-25 engines of the discontinued Space Shuttle program. The fuel pumps for them, by the way, are equipped with bearings supplied by the Aerospace Division of the Schaeffler Group.

The most powerful rocket engines (their rockets and first launches)
Celestial force

* thrust in meganewtons at sea level
Source: wikipedia.org