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ARCA Plans 2018 Launch For Revolutionary Single-Stage Rocket (newatlas.com)

An aerospace company is building a cheap, simple, lightweight rocket that they hope will redefine the microsatellite industry. Eloking quotes New Atlas: New Mexico-based ARCA Space Corporation has announced that it is developing the world's first Single Stage to Orbit (SSTO) launch vehicle that can deliver both a small payload and itself into low Earth orbit, at a cost of about US$1 million per launch. Dubbed the Haas 2CA after the 16th century rocket pioneer Conrad Haas, the new booster uses a linear aerospike engine instead of conventional bell-shaped rocket engines to do away with multiple stages. [YouTube video]
They're working with six different NASA centers and have scheduled their first launch for 2018. The rocket will be 53 feet tall (16 meters) with a diameter of just 4.95 feet (1.5 meters), and will weigh 1,210 pounds when empty, but 35,887 pounds when fueled, "thanks to ACRA's proprietary composite materials for the propellant tanks and other components."

2 of 44 comments (clear)

  1. Well... by Rei · · Score: 5, Interesting

    The rocket equation works out for those figures. But those figures are insanely optimistic. A nearly 30:1 mass ratio? That's nuts. I mean, if they really can do it, go them! But let's just say I'm not holding my breath.

    Also: why oh why does every last rocket startup and their cousin start off with HTP as their oxidizer? It never works out well. Performance is bad, and density is no better than a number of other alternatives, and the latter are less likely to kill you if you look at them funny.

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    1. Re:Well... by Anonymous Coward · · Score: 2, Interesting

      -Great oxidiser density. Best bulk density of any easy fuel combination (saves dry weight)
      -Non cryogenic.
      -Makes higher Isp staged combustion cycle relatively easy even in small sizes.
      Overall it enables a very high mass ratio to be achieved in a small rocket.