Results 1 to 6 of 6

Thread: SpaceX Raptor: flight engine tests (HOTFIRE!)

  1. #1
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default SpaceX Raptor: flight engine tests (HOTFIRE!)

    It's said to "tower over" a Merlin 1D

    Today Musk tweeted images of the first full engines, starting tests this month in Texas before powering the "Hopper" Starship development vehicle in a few weeks.

    The Starship Mk-1 flight test vehicle delivers about June, and construction of the first Super Heavy booster begins this spring.

    Elon Musk ✔ @elonmusk
    Preparing to fire the Starship Raptor engine at @SpaceX Texas
    9:00 PM - Jan 31, 2019

    Elon Musk ✔ @elonmusk
    Initially making one 200 metric ton thrust engine common across ship & booster to reach the moon as fast as possible. Next versions will split to vacuum-optimized (380+ sec Isp) & sea-level thrust optimized (~250 ton).
    9:08 PM - Jan 31, 2019

    https://twitter.com/elonmusk/status/1091154222173712384



    Last edited by Dr Mordrid; 31st January 2019 at 19:22.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  2. #2
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default

    Incoming!!

    Elon Musk ✔ @elonmusk
    At @SpaceX Texas with engineering team getting ready to fire new Raptor rocket engine
    2:15 AM - Feb 3, 2019

    https://twitter.com/elonmusk/status/1091958352513425408

    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  3. #3
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default

    YAY!!!!

    Elon Musk ✔ @elonmusk
    First firing of Starship Raptor flight engine! So proud of great work by @SpaceX team!!
    10:49 PM - Feb 3, 2019

    YAY!!!!

    Elon Musk ✔ @elonmusk
    First firing of Starship Raptor flight engine! So proud of great work by @SpaceX team!!
    10:49 PM - Feb 3, 2019

    https://twitter.com/elonmusk/status/1092268892339273730

    https://twitter.com/elonmusk/status/1092270756715737088

    https://twitter.com/elonmusk/status/1092272377889738753

    Last edited by Dr Mordrid; 3rd February 2019 at 20:16.
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  4. #4
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default

    Everyday Astronaut @Erdayastronaut
    Replying to @elonmusk and 2 others
    Methalox torch igniters... So what starts those? Is there like a spark plug or something?! OR LASERS?
    |
    Elon Musk ✔ @elonmusk
    Gaseous CH4/O2 & heavy duty spark plugs. Basically, a {fart emoji} of insane power
    11:42 PM - Feb 3, 2019
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  5. #5
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default

    SpaceX Instagram:

    https://www.instagram.com/p/BteDxoUFUOX/

    Completed a two-second test fire of the Starship Raptor engine that hit 170 bar and ~116 metric tons of force the highest thrust ever from a SpaceX engine and Raptor was at ~60% power.
    Goal: 200 metric tons of thrust, then a 250 metric ton Raptor "Full Thrust"

    Audio corrected for camera-engine audio delay by redditor u/melancholicricebowl

    Careful with your audio levels

    https://streamable.com/nl6y7
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

  6. #6
    Moderator Dr Mordrid's Avatar
    Join Date
    Apr 2001
    Location
    Westland, MI
    Posts
    25,712

    Default

    This was quick!

    Boiling cryo

    172 tons = 1686.74 kN = 379,195 lbf

    +10% for deep cryo gives

    189.2 tons = 1,855.414 kN = 417,114.5 lbf

    with another ~10% on the table, and it's not at 'Full Thrust' version yet

    Elon Musk ✔ @elonmusk
    Raptor just achieved power level needed for Starship & Super Heavy


    |
    Elon Musk ✔ @elonmusk
    Design requires at least 170 metric tons of force. Engine reached 172 mT & 257 bar chamber pressure with warm propellant, which means 10% to 20% more with deep cryo.
    3:22 AM - Feb 7, 2019
    |
    Andre Infante @AndreTI
    Replying to @elonmusk
    Did you folks track down the source of the green hue?
    |
    Elon Musk ✔ @elonmusk
    Vaporized some copper
    3:39 AM - Feb 7, 2019
    |
    Griddy McGridFinFace @FalconGridFin
    Also wait. You're saying Raptor is designed to run at BOTH cryo and deep cryo temps? This engine is nuts! Thanks
    3:25 AM - Feb 7, 2019

    https://twitter.com/elonmusk/status/1093423297130156033
    Dr. Mordrid
    ----------------------------
    An elephant is a mouse built to government specifications.

    I carry a gun because I can't throw a rock 1,250 fps

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •