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Recent content by hyeh

  1. hyeh

    Breakdown of Liquid Shim Over Time

    Hello, Has anyone seen any data related to the in-service breakdown of liquid shim in aircraft? I've seen some papers on it, but no real life reports. TIA
  2. hyeh

    Failure Conditions

    Thanks RB1957 that is what I thought. Can you point me to that paragraph in the FAR (25 I assume). Thanks again.
  3. hyeh

    Failure Conditions

    In looking at failure conditions, should the resulting stresses be compared against Ftu or Fty. Is the criteria different between military and commercial programs. Thanks.
  4. hyeh

    Test Facility Recommendations

    Can someone reccomend from firsthand experience, test houses that perform static and/or environmental testing at a reasonable cost. They should be able handle composite and metallic structures-parts. I'm also looking for one that handles composite database qualification testing. Thanks
  5. hyeh

    Engineering texts-basic knowledge?

    Phil, if I may be so bold, not everyone is capable of retaining every single formula in his head. Because of that it is vital to maintain close at hand, texts which cover a wide range of frequently used methodologies. What is wrong with Nui presenting graphs, formulas, etc. from company design...
  6. hyeh

    Engineering texts-basic knowledge?

    Add Michael Nui's more recent "Airframe Structural Design" and "Airframe Stress Analysis and Sizing" to that list. These two references are now on the top 10 lists of many in the industry.
  7. hyeh

    Horizontal Stabilizer Anti-Ice

    Does anyone know if there is/was an FAA requirement for thermal, mechanical, or other anti-ice system to be incorporated in the horizontal stabilizer leading edge on commercial aircraft? I haven't been able to find any mention in 2 days of web searching. I worked on the MD11 HS years ago in the...
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