Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. bf109g

    Tension Clip Yield Allowable Stress

    Flabel has the best section on tension clips that I know of, but it's based on calculated Fby. Don't know of any testing to yield that would have generated tables like you mention.
  2. bf109g

    MMPDS-04 CN1: Table 3.1.2.1.1. Reductions for Edgewise Orientation

    Wil, Thanks for pointing that out. Haven't had time to review CN1. Like you, I work on "antiques" from time to time.
  3. bf109g

    Shear load tranfered by nutplate fastening system

    I remember ugly discussions when the shop wanted to make the screw holes larger and go wiyj floating nutplates on a gen av prop spinner. They claimed it would make it easier to assemble, which it did. Then we started getting complaints about failures. Turned out that less than half of the...
  4. bf109g

    decorative screws

    thanks Jim, gotta be white.
  5. bf109g

    decorative screws

    Does anybody have a lead on 8-32 flush head screws with painted heads? There are boeing specs, but they show zero stock. I may end up using NAS517 and painting the head myself.
  6. bf109g

    Practical Composites Stress Analysis - Training and Useful References

    Ditto on Abaris. Very good training - start with the laminated plate course. The Boeing training is a little wishy washy. Keep in mind it's designed for airline repair engineers and light on the design side.
  7. bf109g

    Cargo tie down with load limiters

    As I understand your question, you want to know how to incorporate load limiters in your calculations for strap tiedowns. The short answer is you don't. The g factors don't change, load stays the same (ie you can't exceed the floor capability of the aircraft), straps stay the same and the...
  8. bf109g

    1.15 Fitting Factor

    I've used it quire a bit in the design of cargo handling components. They are designed for ultimate ground and flight loads and the extra .15 gives a little more cushion especially when you get into plastic bending.
  9. bf109g

    fastener search problems

    NAS1189? I always do a search on AssistQuicksearch with some keywords and go from there.
  10. bf109g

    wear rivets

    On second thought, you need to be very careful about sanding/blending around fastener heads. OEM's don't want you grinding on fasteners. In a service environment, if you needed to blend around fasteners, you would remove the fastener first, blend and then install an acceptable replacement...
  11. bf109g

    wear rivets

    Be sure to restore the rivet head corrosion protection after sanding.
  12. bf109g

    longest inspection cycles

    The operator should have a copy of the OEM document for fuselage skin inspection in that area.
  13. bf109g

    What kind of fastener is this?

    Kirby - My experience with MRAS has always been positive. I'd call and ask to speak to one of their repair engineers, even if you have to lie about your question. Those guys have always been extremely helpful.
  14. bf109g

    Boeing D6-10923

    Yeah, that's "Fuselage Stress Analysis for the 737 Airplane." That will be difficult to obtain.
  15. bf109g

    Boeing D6-10923

    That number sounds familiar. What's the subject matter?
  16. bf109g

    Skin gaps in aluminum aircraft

    Lots of variation here. For a small, unpressurized airplane, I'd say about 1/16" would be the max. Depends on what's behind the butt splice - sheetmetal strap or frame - and how the load is transmitted across the joint.
  17. bf109g

    L Bracket joining 2 carbon composite panels

    rb is right. I'd just add a ply or two of fiberglass at the angle contact areas and form it from aluminum.
  18. bf109g

    Materials qualified to RMS specs?

    I think I have some info on the CF6 cowl, there may be something in there on mat'l specs.
  19. bf109g

    Piper Comanche 260 fuel tank switch problem/operation

    Sounds like a crappy design to me. Rely on a set screw to maintain lock of the lever to the shaft? The later fuel valves have a half round/half square so that there is a positive lock with the handle/lever. They also have a nylon/delrin or something bearing to take care of the lube problem.
  20. bf109g

    Piper Comanche 260 fuel tank switch problem/operation

    Wouldn't be the first time somebody switched to an empty tank. People sometimes jump in and go w/o checking the go juice. Interested in seeing what the investigation turns up.

Part and Inventory Search

Back
Top