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Thread: SNC Dream Chaser spaceplane (successful glide test/landing)

  1. #31
    Moderator Dr Mordrid's Avatar
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    Another change Dream Chaser over the last couple of years has been to the engines; they've been working on replacing the hybrid engines in the back to a Vortex-flow liquid rocket engine originally designed by ORBITEC.

    ORBITEC was bought out up by Sierra Nevada Corporation in order to get the Vortex engine, a compact space garden technology called VEGGIE (under test on ISS), and several other goodies.

    In the Vortex engine the thrust chamber can be made of aluminum because the cryogenic propellants are introduced from the chambers perimeter, protecting the Chamber from the combustion, which occurs in the center of the swirling vortex. No pipe dream, this engine is been flight tested in a subscale version.

    Correction: first flight to ISS 2020 for the Commercial Cargo 2 program, and work continues on a crew version.
    Last edited by Dr Mordrid; 13th November 2017 at 20:15.
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  2. #32
    Moderator Dr Mordrid's Avatar
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    Concept of operations for Cargo Resupply Services 2 program (ISS cargo delivery - 2020+)

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

  3. #33
    Moderator Dr Mordrid's Avatar
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    "In the future we believe Dream Chaser will land anywhere a 737 jet can land."

    Dream ChaserĀ® Spacecraft Free-Flight Test Data Sheet:

    Date: Saturday, November 11th 2017
    Lift-off time: 8:30 am PT
    Release time: 09:41 am PT
    Release altitude: 12,324 feet, mean sea level
    Release equivalent air speed: 66 miles per hour
    Release angle of attack: -2.17 degrees
    Release angle of sideslip: -0.76 degrees
    Maximum speed: 330 miles per hour
    Maximum angle of attack in flight: 16.5 degrees
    Dream Chaser time in glide: approx. 60 seconds
    Dream Chaser horizontal glide distance: 16,217 feet
    Dream Chaser touch down time: 09:42 am PT
    Landing speed: 191 miles per hour
    Landing touchdown point: 1,250 feet down runway
    Landing rollout distance: 4,200 feet
    Helicopter type: Columbia Helicopters Model 234-UT Chinook
    Length of helicopter suspension system: 200 feet
    Runway: Edwards Air Force Base Runway 22 Left
    Vehicle length: 30 feet long
    Dr. Mordrid
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    An elephant is a mouse built to government specifications.

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

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