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    Methane rocket engines currently under development and in production around the world
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    Methane rocket engines currently under development and in production around the world


    Methane rocket engines currently under development and in production around the world

    https://i.redd.it/4t6313i25tkd1.jpeg

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    14 Comments

    3. Redbaron1701 on

      I’ve never seen anything that didn’t make me think Blue Origin and Jeff Bezos suck at space.

      The engine with the longest development, while having the highest thrust is basically losing in all other areas.

    6. Gomehehe on

      oh god be4 looks terrible compared to raptor 3. It’s huge, heavy, less powerful and not as efficient.

    7. LPNTed on

      If the graphic sizes are relatively to scale…… Raptor 3 V. BE-4…. HOLY FUCKING FUCK!

    9. Frodojj on

      There are three types of Raptor in addition to those versions. Vacuum raptor is optimized for vacuum operation. It has better isp because of its larger engine bell. There is also a stripped down version that is used on the booster’s outer edge that doesn’t gimbal and uses connections in the launch mount to start the engines. It weighs a lot less than the standard version. All three types have different specs. Which one’s specs are you including there, or are they mixed together?

    10. Decronym on

      Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

      |Fewer Letters|More Letters|
      |——-|———|—|
      |[BE-4](/r/Space/comments/1f0vp0p/stub/ljv4098 “Last usage”)|Blue Engine 4 methalox rocket engine, developed by Blue Origin (2018), 2400kN|
      |[ESA](/r/Space/comments/1f0vp0p/stub/ljv0hxs “Last usage”)|European Space Agency|
      |[ISRO](/r/Space/comments/1f0vp0p/stub/ljv3eet “Last usage”)|Indian Space Research Organisation|
      |[Isp](/r/Space/comments/1f0vp0p/stub/ljv4098 “Last usage”)|Specific impulse (as explained by [Scott Manley](https://www.youtube.com/watch?v=nnisTeYLLgs) on YouTube)|
      | |Internet Service Provider|
      |[RP-1](/r/Space/comments/1f0vp0p/stub/ljv4agm “Last usage”)|Rocket Propellant 1 (enhanced kerosene)|
      |[SLS](/r/Space/comments/1f0vp0p/stub/ljuq20d “Last usage”)|Space Launch System heavy-lift|

      |Jargon|Definition|
      |——-|———|—|
      |[Raptor](/r/Space/comments/1f0vp0p/stub/ljv1qhj “Last usage”)|[Methane-fueled rocket engine](https://en.wikipedia.org/wiki/Raptor_(rocket_engine_family)) under development by SpaceX|
      |[Starlink](/r/Space/comments/1f0vp0p/stub/ljuzhcp “Last usage”)|SpaceX’s world-wide satellite broadband constellation|
      |[hypergolic](/r/Space/comments/1f0vp0p/stub/ljv4agm “Last usage”)|A set of two substances that ignite when in contact|
      |methalox|Portmanteau: methane fuel, liquid oxygen oxidizer|

      **NOTE**: Decronym for Reddit is no longer supported, and Decronym has moved to Lemmy; requests for support and new installations should be directed to the Contact address below.

      —————-
      ^(9 acronyms in this thread; )[^(the most compressed thread commented on today)](/r/Space/comments/1f0ajsc)^( has 26 acronyms.)
      ^([Thread #10490 for this sub, first seen 25th Aug 2024, 14:42])
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    13. legoguy3632 on

      What is the source on BE-4 Isp? Blue hasn’t released numbers but the estimate on Wikipedia is 340 s

    14. DarthWoo on

      Ok, now all we need is a repurposed spinning orbital hotel to bolt some of these onto and we’re go for Mars.