Merlin 1C Vacuum  
Initial Operational Capability (IOC): September 2008
Maiden Flight: August 2008
Total Production: ?
Origin: United States of America
Corporations: SpaceX
Parent System: Merlin 1
Initial Operational Capability (IOC): 2006
Total Production: ?
Family Members: Merlin 1C
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Description: The Merlin 1 is a family of rocket engines developed by SpaceX since the early 2000s to power the Falcon space launch systems family. The Merlin 1 rocket engine burns a mixture of RP-1 kerosene and Liquid Oxygen (LOX) to achieve a thrust between 76,000-lb to 94,000-lb at takeoff depending on the engine version. The Merlin 1A and Merlin 1B engines were rated at 76,000-lb and 95,000-lb of thrust at takeoff respectively. These engines were developed to be reusable when employed to lift-off Falcon 9 and Falcon Heavy rockets. Starting in 2013 the Merlin 1C engines were phased out in favor of the more powerful Merlin 1D rocket engine.

The Merlin 1C Vacuum is a variant equipped with a larger nozzle to optimal operation in the space vacuum in orbit while delivering higher thrust that Merlin 1C engines. The Merlin 1C Vacuum powers the second stage of Falcon 9 space rocket. The Merlin 1C Vacuum provides 110,000-lb of thrust when fired in orbit.

Merlin 1C Vacuum Applications

Space Systems Falcon 1 Falcon 9

Merlin 1C Vacuum Specifications

Thrust: 110,000 pound (50 ton)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

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