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  1. sigma38

    corrosion protection for cad plated repairs

    Actually, let me adjsut the question... a quick google brought up a lot of info... what spec seems to be the aero industry standard for this process?
  2. sigma38

    corrosion protection for cad plated repairs

    Could you tell us more about "brush cadmium plating"? Do you have material and application specification references by chance? Thanks.
  3. sigma38

    corrosion protection for cad plated repairs

    For small areas of cad plating that have worn, or been machined, off of steel and nickel-aluminum-bronze (e.g. bushings), what are folks seeing done to protect the surface without having to re-cad plate?
  4. sigma38

    Atkins stress engineer interview questions

    So how did the interview go and what all did they ask?
  5. sigma38

    help with new tire design

    Anybody have a copy of the TRA yearbook from the last few years thatyou'll sell to me? For what I'm doing I really don't need a current copy. Thanks.
  6. sigma38

    help with new tire design

    Can anyone point me to a sample tire drawing? Nothing proprietary, just a place to start.
  7. sigma38

    help with new tire design

    Ok, to start... if I have a target speed requirement and load capability requirement where do I begin for material allowables, etc for determining how many plies I need. Are there industry standard tables or specs I can point to?
  8. sigma38

    help with new tire design

    I have a project where I need a custom sized tire similar to an ATV tire or a turf tire. Nothing else is out there that will fit my exact needs and I would like to get a tire built. Can any of you help me answer some basic engineering questions for pneumatic tire design? I've searched for...
  9. sigma38

    Peery answer key group

    Sure, I would be happy to invite you (and others) to the discussion group. Shoot me your email address at removethis_sigmatero@yahoo.com and I'll send the details. Thanks for being open to the idea. BTW, I was just comparing solutions for crippling of stringers and how Peery deals with flange...
  10. sigma38

    Peery answer key group

    40818…there's several reasons for wanting to create the answer key. 1. Based on quite a few posts on this list it seems that folks are hungry for textbooks on fundamental aircraft engineering stress analysis techniques. Aircraft Structures by Peery certainly fits this criteria. 2. Folks...
  11. sigma38

    Stackup Tolerance Study.

    If it matters then take care of your stackup with dimensioning at the assembly/installation level.
  12. sigma38

    Peery answer key group

    I’ve been trying to find an answer key for Peery’s original edition of Aircraft Structures and haven’t had any luck. I’ve been in contact with numerous DERs, professors, and even Peery’s son and daughter. None of them knew of an answer key and the general consensus was that Dr. Peery didn’t...
  13. sigma38

    Structures Book

    The four classics are Bruhn, Niu, Peery, and Flabel. From there you can branch out into the mechanical side with Roark, etc.
  14. sigma38

    Boeing repair course

    Got it, good stuff, thanks.
  15. sigma38

    MMPDS material strength vs thickness for stock mtl

    I sure hope it exceeds "guaranteed minimums", at least 99% of the time with a 95% confidence (for A-basis) :) I really can't use actual as-tested material properties or S-basis since I need to compare to what was tested and then specify material condition accordingly on the print. IOW I don't...
  16. sigma38

    Airframe/Structural Repair

    Looked and looked but couldn't find the course offered. Thanks for the suggestion. I went ahead and started another specific thread with the same question. Thanks again.
  17. sigma38

    Boeing repair course

    Anyone know if non-Boeing employees can take the Boeing airframe repair course and if so how to get details? Thanks.
  18. sigma38

    Errata for Curtis's "Fundamentals of Aircraft Structural Analysis"?

    Me too, me too! Thanks! removethis_luv.planes @ yahoo.com
  19. sigma38

    COLUMBIA AIRFRAME OUTLASTS STEEL FATIGUE TESTING STRUCTURE

    Was the Airbus composite rudder failure a fatigue issue?
  20. sigma38

    MMPDS material strength vs thickness for stock mtl

    Actually, I'm talking about going the other way around.... if I know the part was made from 1 1/2" stock then which column does it fall into? IOW when the data for MMPDS was created did they assume that 1 1/2" stock (which is marked 1.500 but comes in a little larger) is 1.500 or 1.501+? The...
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