Silavite

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About Silavite

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    Rocketeer

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  • Location College Station, TX

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  1. Silavite

    Weather Chat Megathread

    Mexico City Beach is in shambles... The eyewall has begun to contract, but until it collapses, the storm will not weaken very quickly. It is possible that we will see major hurricane force winds in Georgia and a small swath of Alabama later today.
  2. Silavite

    Buoyancy rockets!?

    Not exactly the same thing, but some sounding rockets used balloons to gain extra altitude before lighting their engines. They're dubbed, "Rockoons".
  3. Silavite

    SpaceX Discussion Thread

    Maezawa is just nodding with everything Musk says and I find that extremely amusing for some reason.
  4. Silavite

    SpaceX Discussion Thread

    He says 300 bar chamber pressure and 380+ ISP for Raptor!
  5. Silavite

    NASA SLS/Orion/Payloads

    Sounds familiar...
  6. Silavite

    New Radio Image of the Galactic Center

    From one of the article's comments,
  7. Silavite

    SpaceX Discussion Thread

    My vote is that it's because they already own and have experience with barges. It should be feasible. ULA is planning to recover engines on the Vulcan with a helicopter snatching a parafoil. It's also been done before. https://en.m.wikipedia.org/wiki/Corona_(satellite)
  8. Silavite

    SpaceX Discussion Thread

    Does this mean that the BFR has graduated from, "Extremely Large Rocket," to, "Overwhelmingly Large Rocket"?
  9. Silavite

    NASA SLS/Orion/Payloads

    Let me make sure if I've missed anything. The arguments against the SLS are as follows. Behind schedule Severely overbudget Uses dated hardware Shoehorns hardware into roles that they were never designed for EM-2 is unreasonably risky and a double standard for man-rating compared to the Dragon 2 or CST-100 Payload manifest is sparse (Europa Clipper has already been moved to Atlas V) aside from anything specifically supposed to go on the SLS (DSG) May be superseded in ability by the BFR soon after the SLS is in service Arguments for the SLS are as follows. Sunk costs Even if it is a pork project, it keeps NASA relevant The development schedule of the BFR is hardly assured, so the SLS will provide interim capacity The DSG is required for the SLS (even though it doesn't exist yet...) I'm writing a short paper arguing for the cancellation of the SLS for my AP Government class, and I want to make sure I cover everything. Aside from GAO, what would be good places to hunt for reliable sources evaluating the SLS?
  10. Silavite

    Falcon Heavy Theme: Input Requested

    The ticking clock, yes. Now that I realize what that sound is supposed to symbolize, it makes a lot more sense. Sounds good!
  11. Silavite

    Falcon Heavy Theme: Input Requested

    Ah, I got a bit overexcited. The original tone that hits on beat 1 of every measure fits well for the first 30 seconds in the piece in the exposition and first melody. Once you hit 0:32, I feel like it should start moving in some way as a counter melody or more active harmony. Otherwise, it sounds great. (I would request MOAR CHORDS but that's a personal preference thing.)
  12. Silavite

    Falcon Heavy Theme: Input Requested

    Perhaps the Finale to Shostakovich's 5th Symphony starting at 38:11, with T-0 at 40:21? Or the Adagio from Bruckner's 7th Symphony, starting at 16:15 with T-0 at 18:16? Or the Finale from Mahler's 1st Symphony, with T-0 at 2:10? There's just too much epic music to pick from!
  13. Propeller efficiency for a variable pitch prop can be approximated as about 80% out to around Mach 0.8, where things start getting funny with wave drag. I searched around a bit and found this with google. The theory is beyond my realm of understanding, but it features the propeller efficiency (η) of a Cessna 172's prop plotted against its advance ratio (J). Even if you were to model your prop based on this, you'd still need to find static thrust, which I have no idea how to calculate.
  14. Silavite

    SpaceX Discussion Thread

    Admittedly it's a bumper sticker, not a license plate, but... WE BRAKE FOR NOBODY
  15. Silavite

    What's your favorite rocket engine?

    RL60 Should have been the RL10's successor, but the engine never got a lease on life for reasons beyond me.