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{{Infobox rocket engine|name=Merlin|thrust_vac=409 kN|thrust_sl=342 kN|isp_vac=3.0 kN·s/kg|cycle=[[gas-generator cycle]]|fuel=[[RP-1]]|oxidizer=[[LOX]]|first_flight_date=2006|service_date=Not in service|manufacturer=[[SpaceX]]|pc=6.14 MPa|dry_mass=approx. 400 kg}}
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The '''Merlin''' engine is a RP-1/liquid oxygen [[gas-generator cycle]] rocket engine. The Merlin engine was developed for use on the [[Falcon 1]], [[Falcon 5]] and [[Falcon 9]] rockets by [[SpaceX]] and is designed for sea recovery and reuse.
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Engine details:
  
The '''Merlin''' engine is a RP-1/liquid oxygen [[gas-generator cycle]] rocket engine. The Merlin engine was developed for use on the [[Falcon 1]], [[Falcon 5]] and [[Falcon 9]] rockets by [[SpaceX]] and is designed for sea recovery and reuse.
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The nozzle is an inexpensive, expendable [[ablatively cooled]] carbon fiber composite.
  
==Engine details==
 
  
The nozzle is an inexpensive, expendable [[Ablative cooling|ablatively cooled]] carbon fiber composite.
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Performance:
  
Engine revision 1B has been enhanced over the 1A with a turbine upgrade (from 1490 kW to 1860 kW)
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Current published ratings:
  
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    * Sea level thrust: 77,000 lbf (342 kN)
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    * Vacuum thrust: 92,000 lbf (409 kN)
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    * Chamber pressure: 6.14 MPa (890 psi)
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    * Sea level Isp: 255 s (2.6 kN·s/kg)
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    * Vacuum Isp: 304 s (3.0 kN·s/kg)
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    * Thrust-to-weight ratio (fully accounted): 96
  
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Engine revision 1B has been enhanced over the 1A with a turbine upgrade (from 1490 kW to 1860 kW)
  
==Performance==
 
  
Current published ratings:
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Operations:
{|
 
|-
 
!bgcolor="lightblue" colspan="2"|General engine data
 
|-
 
!Manufacturer
 
|[[SpaceX]]
 
|-
 
![[engine cycle]]
 
|[[gas-generator cycle]]
 
|-
 
!bgcolor="lightblue" colspan="2"|Performance
 
|-
 
!Sea level thrust
 
|342 kN (77,000 lbf)
 
|-
 
!Vacuum thrust
 
|409 kN (92,000 lbf)
 
|-
 
!Sea level I<sub>sp</sub>
 
|2.6 kN·s/kg (255 s)
 
|-
 
!Vacuum I<sub>sp</sub>
 
|3.0 kN·s/kg (304 s)
 
|-
 
!Chamber pressure
 
|6.14 MPa (890 psi)
 
|-
 
!bgcolor="lightblue" colspan="2"|Propellants
 
|-
 
!Fuel
 
|[[RP-1]] rocket grade kerosene
 
|-
 
!Oxidizer
 
|[[Liquid oxygen]]
 
|-
 
!bgcolor="lightblue" colspan="2"|Other information
 
|-
 
!Engine mass
 
|approx. 435 kg
 
|-
 
!Thrust-to-weight ratio (fully accounted)
 
|96
 
|-
 
|}
 
  
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    * Fuel: RP-1 rocket grade kerosene
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    * Oxidizer: Liquid oxygen
  
[[Category: Articles]]
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[[Category:rocket engines]]
[[Category:Rocket engines]]
 
 
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