This was the inflection point:
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Commentary:
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Under Review:
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Engineers Canada:
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I don't understand the philosophy. If the current ritual is not inclusive enough, what ritual would be?
It is a ring intended to be worn on a hand. For those without hands should they see...
I was recently talking to somebody who claimed the US Navy was using ceramic bushings in bushed a/c lugs to prevent corrosion in a marine environment.
But I wasn't able to dig the details up for this. Seems like few ceramics would be up to the task. Ceramic coatings maybe.
Question: what would...
Does anyone know a good reference for developing an inspection interval based on found cracks? I had one suggested to me recently with a lot of obvious problems. It's not an approach I'm familiar with as I have minimal experience with correcting service difficulty it DT structures. If possible...
Has anyone here seen 1/2 hard 301 SS used for crack or corrosion related repairs to aluminum extrusions subject to cyclic loads?
Seems to me this is high risk for corrosion fatigue and maybe even SCC with any clamp-up issues. Scares me. Not sure where to start with a life knockdown.
I see a...
We have our own internal wire code code abbreviations that our team is standardized about. This has been questioned.
A very brief review shows that there are electrical industry standards that vary from the basic Y14.38 abbreviations for colors. See attached ("internal" is ours). I'm sure there...
Hi CM experts. I tried to search out a solution to my problem but came up dry.
For standard and commercial parts with significant part numbers, is it ever reasonable to not fully define the part number to imply alternates?
One example would be discrete fasteners which are available with...
See image. The blue & orange curves represent + ultimate load factor curves for the shorter, lighter model of a type. The grey and yellow is for the longer, heavier model of the same type for which I just have some tabulated data. Both derivatives share common cg (x394). The shorter model...
Pardon my ignorance. How do you get to .605 and .613 compliance with laser cut holes on aluminum parts? Is there any commercial or military process specifications that others use?
My application is strictly static strength with 6000 and 7000 series aluminum. The capabilities of a local...
So a wing to fuselage fairing has many loads - if it is a high wing, you will have technicians standing on it - there's bird strike and other discrete damage - air loads naturally. What about rapid decompression? What effect does a single bay failure have on these panels? Presumably that blows...
This course will be of interest to many:
https://www.linkedin.com/pulse/training-aircraft-structural-analysis-asa-i-ed-doetzel?trk=hp-feed-article-title-publish
I'm curious to hear what others think of this story:
[link http://www.inquisitr.com/2130781/engineer-snapped-fixing-broken-plane-with-tape-minutes-before-take-off/]Link[/url]
Paint erosion is suggested, then concern about a gap due to mechanical damage is suggested. Does this pass the sniff...
Some avionics guy decided to install metric nut plates inside his box for mounting...
What are the most popular metric fasteners used on aircraft? Would a DIN standard be suitable for meeting 25.613(e) at Amdt 112? Which NA00 fasteners are most popular and are LN series more available in North...
What is an "integration network" and specifically how is this implemented with FEMAP? Can't find much in any of the FEMAP/NX/NEi documentation.
This information is not translated for the NASTRANs (per FEMAP documentation) which I use. Some suggestion this is related to contact analysis? I'd...
Just experienced some interesting feedback from our flammability engineer.
A 12 second vertical test (FAR 25 Appendix F Part 1 (a)(1)(ii)) burned a couple inches and failed to self extinguish in 15 seconds and therefore failed the criteria.
Another sample was applied to the 60 second test (FAR...
