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Wanna Buy a Reusable Rocket for 19k USD?

Posted by ryuzaki0 on from the cheap-thrill dept.

Anonymous Coward writes with story from the Mainchi Daily News: "'Earlier this month, Hokkaido University started putting its Camui rockets on the open market. Camui rockets are true rockets, being 1.6 meters long, flying at 300 meters per second and parachuting slowly to the ground after reaching heights of up to 1 kilometer.' The Camui use a mixture of fixed fuel acrylic and liquid oxygen."

5 of 153 comments (clear)

  1. Re:why is this here? by Spy+Handler · · Score: 5, Informative

    Agreed.... this thing runs on LIQUID OXYGEN for chrissakes, it should be going 60,000 feet or more. Some of the high-powered homemade rockets those guys shoot in the Nevada desert easily go 60,000 feet or more, and cost way less than 10 grand. Maybe the original article misprinted the altitude, maybe it was 10km rather than 1km.

  2. pictures ... by weighn · · Score: 5, Informative

    there's some pics here. and a cnn story here.

    --
    Mongrel News all the news that fits and froths
  3. Ainu by kahei · · Score: 3, Informative


    The real significance of this project is that it's probably about the last time anyone names anything in Ainu, the old language of Japan... ...although SNK fans will recall that Nakoruru's moves are named in Ainu, and her 'Kamui Mutsube' is Ainu for 'God Blade'. The real Ainu pronunciation would be more like 'Mutpe' though. Okay, I'm rambling.

    --
    Whence? Hence. Whither? Thither.
  4. What makes this a "True Rocket?" by DevilsEngine · · Score: 5, Informative

    I have hybrid engine models (acrylic / NO2) that are larger and go higher. Heck, I had refillable solid engine models that were considerably more powerful -- though with new regulations, getting the refills has become too much of a hassle. I don't see anything to this that wasn't available in dozens, if not hundreds, of High Power Rocketry models available ten years ago. Standing next to me at the moment (in two pieces, because it's too tall to be assembled indoors) is a 11' tall model on 5.5" tubing (at base, step down to 4" at top). Hybrid engine in the "L" range. It's made half a dozen flights on hybrid power, and a couple before that with solids. Easily clears a mile. Next to it is a LOC Magnum, a standard kit available for nearly a decade, with what has to be a good twenty flights to better than a kilometer on a "J" class hybrid. What makes these any less "true rockets?"

  5. Re:Within Three Seconds? by Natchswing · · Score: 3, Informative
    Let's see. One kilometer in one second. This would require an average velocity of flight of, oh... 1 km/s. If we had linear acceleration (rough estimate) and we started from zero (sounds like a safe assumption) then we'll have 2 km/s by the time we hit 1km altitude.

    If the fuel is cut there:

    vf^2=vo^2-2*a*s or 1000^2/(2*9.8)=50km

    That sounds a bit better. Loki Darts could do that.