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Skyripper Motors out of Certification


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  1. #1
    Join Date
    29th November 2009
    Location
    Fort Collins, CO
    Posts
    585

    Skyripper Motors out of Certification

    I noticed on Thrust Curve that Skyripper Motors are out of certification. Does this mean that Todd will have to re-submit them for certification since they are not allowed at launches now?

    Edward

  2. #2
    Join Date
    25th July 2011
    Posts
    27
    Where did you see this?
    I don't see anything on the Thrustcurve website that says that???
    Tom

  3. #3
    Join Date
    10th November 2011
    Location
    Northeastern Maryland
    Posts
    779
    Per the NAR consolidated certification list, last updated on 8/2, they remain certified under TRA http://www.nar.org/SandT/pdf/Combine...sByImpulse.pdf

    An additional check of TRA's motor certification pages also confirms current certification on multiple SR motors.
    -James Hamilton
    L2
    https://sites.google.com/site/disasterguysrocketry/
    I love America but I also love Canadian bacon, whiskey, and MOTORS.

  4. #4
    Join Date
    18th January 2009
    Location
    Central Florida launch sites
    Posts
    716
    HRMMM... Many of the TRA cert letters I have in my SRS datasheet folder state "June 30, 2012". Attached is an example. (the J144 letter says June 2009).

    If anyone has 29mm, 38mm, or 54mm SkyRipper reloads they want to dump- contact me.
    Attached Files Attached Files
    -- brian
    NAR 83726 \ TRA 11640 \ L2

  5. #5
    Join Date
    25th July 2011
    Posts
    27
    I wonder if this has something to do with the AP Preheaters?
    I checked our cert documents and they show they are certified "indefinetly."

    I am thinking it may be a typo...? Can someone check maybe the Alpha Hybrids Cert Papers, Ratt Works, Hypertek etc and see what they say?

    A Good Catch on Edwards Part here!
    Tom

  6. #6
    Join Date
    18th January 2009
    Location
    Saugus, MA
    Posts
    1,701
    Quote Originally Posted by ContrailRockets View Post
    I wonder if this has something to do with the AP Preheaters?
    I checked our cert documents and they show they are certified "indefinetly."

    I am thinking it may be a typo...? Can someone check maybe the Alpha Hybrids Cert Papers, Ratt Works, Hypertek etc and see what they say?

    A Good Catch on Edwards Part here!
    Tom
    The Alpha hybrids were certified by NAR S & T so the certification runs 5 years.

    NFPA doesn't put a time limit on certification. NAR S & T recertifies motors every 5 years although that can be extended at the discretion of the chairmen. You'll should check with Paul Holmes about TMT but I believe their policy is to not require recertification unless a motor has shown to have problems.

  7. #7
    Join Date
    25th July 2011
    Posts
    27
    Quote Originally Posted by billspad View Post
    The Alpha hybrids were certified by NAR S & T so the certification runs 5 years.

    NFPA doesn't put a time limit on certification. NAR S & T recertifies motors every 5 years although that can be extended at the discretion of the chairmen. You'll should check with Paul Holmes about TMT but I believe their policy is to not require recertification unless a motor has shown to have problems.
    Does that mean that Skyripper motors were tested by S&T and not TMT?
    That might be the answer to this whole thing.
    Tom

  8. #8
    Join Date
    18th January 2009
    Location
    Saugus, MA
    Posts
    1,701
    Quote Originally Posted by ContrailRockets View Post
    Does that mean that Skyripper motors were tested by S&T and not TMT?
    That might be the answer to this whole thing.
    Tom
    No, S & T did Alpha. TMT did Skyripper.

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