RL10: Perbedaan antara revisi
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== Variants ==
{| class="sortable wikitable"
! Version
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== Specifications ==
=== Original RL10 ===
* Thrust (altitude): 15,000 [[Pound-force|lbf]] (66.7 kN)<ref name="S2S">{{citation | url=http://history.nasa.gov/SP-4206/ch5.htm | title=Stages to Saturn; A Technological History of the Apollo/Saturn Launch Vehicles|author=Bilstein, Roger E.|chapter=Unconventional Cryogenics: RL-10 and J-2|date=1996|publisher=National Aeronautics and Space Administration, NASA History Office|place=Washington, D.C.|accessdate=2011-12-02}}</ref>
* Burn Time: 470 s<ref name="S2S" />
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* Vehicle application: [[Centaur (rocket stage)|Centaur]] upper stage - 2-engines
=== Current design ===
[[
; RL10B-2 Specifications
* Thrust (altitude): 24,750 lbf (110.1 kN)<ref name=pwr_rl10b-2.pdf>{{cite web |url=http://www.pw.utc.com/products/pwr/assets/pwr_rl10b-2.pdf |title=RL10B-2 |publisher=[[Pratt & Whitney Rocketdyne]] |date=2009 |accessdate=January 29, 2012}}</ref>
* Design: [[Expander cycle (rocket)|Expander cycle]]<ref name="">{{cite journal |url=http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA397948 |title=50K expander cycle engine demonstration |journal=AIP Conference Proceedings |first1=A M |last1=Sutton |first2=S D |last2=Peery |first3=A B |last3=Minick |volume=420 |pages=pp. 1062–1065 |date=January 1998 |doi=10.1063/1.54719}}</ref>
* [[Specific impulse]]: {{convert|464|isp}}<ref name=pwr_rl10b-2.pdf />
* Engine weight - dry: 610 lb (277 kg)<ref name=pwr_rl10b-2.pdf />
* Height: 163 in (4.14 m)<ref name=pwr_rl10b-2.pdf />
* Diameter: 87 in (2.21 m)<ref name=pwr_rl10b-2.pdf />
* [[Expansion ratio]]: 250 to 1
* Mixture ratio: 5.85 to 1 <ref name=pwr_rl10b-2.pdf />
* Propellants: [[Liquid oxygen]] & [[liquid hydrogen]]<ref name=pwr_rl10b-2.pdf />
* Propellant flow: Oxidizer 41.42 lb/s (20.6 kg/s), fuel 7.72 lb/s (3.5 kg/s)<ref name=pwr_rl10b-2.pdf />
* Contractor: Pratt & Whitney
* Vehicle application: [[Delta III]], Delta IV second stage (1 engine)
; RL10A-4-2
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* {{cite book|last= Connors|first= Jack|title= The Engines of Pratt & Whitney: A Technical History|publisher= [[American Institute of Aeronautics and Astronautics]]|location= Reston. Virginia|date= 2010|isbn= 978-1-60086-711-8|url=|pages= }}
== External links ==
{{Commons category|RL10}}
* [http://www.astronautix.com/engines/rl10b2.htm RL10B-2 at Astronautix]
* [http://www.spaceflightnow.com/news/n0708/16rl10valve/ Spaceflight Now article]
* [http://www.spaceflightnow.com/news/n0901/26altair/ Spaceflight Now article]
[[Kategori:Mesin roket]]
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