@Sparweb, I know it wasn't meant personally. The assumption that my post was a sales ad in disguise, rather than one engineer trying to help another, is what irked me (temporarily). All Is good.
Back on keel, the SPS factory burning down has caused at least a moderate rippled in the OEM...
Wil, you are reading too much into this. I am simply offering possible epoxy alternates for the original poster. I've got no ulterior motives. I am an engineer at Air Tractor. We design and build crop dusting and fire fighting airplanes. We must have robust corrosion prevention measures due...
Goat, the epoxy primers listed in the epoxy prime process spec at the OEM I work at are:
PPG Desoprime HS: CA7833, CA7502 (chrome free), CA7700, and C7755
Sherwin Williams Aerospace Coatings: SM0483928 (base), CM0120828 (activator)
Most commonly, we use the PPG 7833. If we need chrome-free...
For those in the Part 23 world, curious to hear your interpretation and application of 23.603(b). No ulterior motives, purely curious to hear how others in the industry interpret this rule and show compliance to it.
In my mind it is a bit of a catch-all, showing the design is well thought...
rb,
Oh duh, on the WDC acronym. This assembly is a location not terribly accessible, so we want a more long-term solution than WDC.
I hear what you are saying about the nuance of the specific installation, but I'm not trying to debate with them (or Eng-Tips) about this specific...
rb,
They (Group 1) don't have any evidence to support their claim. I think just wishful thinking on their part, really.
I know 5052-O is not high strength. I purposefully left out details of what it is or what it does because I don't want to derail the topic with those details. It isn't...
Having a debate with another group internally. Here's the scenario: 6061-T6 plate welded to a 5052-O tube. The plate gets NAS680A3 nutplates riveted on with (alodined) AD rivets. Group 1 is pushing to weld the plate to the tube, then rivet the nutplates to the plate, then alodine the whole...
Wil, super! Thank you very much!
Now to request input from folks familiar with SCEET hose in the (aircraft) industry:
Have you seen similar delamination between the inner and outer layer?
Have you set up an inspection criteria to determine if the bond between the inner and outer layer is...
Is there a mil-spec or similar industry spec (AN, MS, NAS, AMS, ASTM, SAE, etc) that SCEET hose is made to that provides dimensional, material, and performance criteria? Like an AN960 washer spec sheet, but for SCEET hose.
The manufacturer of the SCEET hose that my company has been using for...
Interesting thread. I knew about graphite from pencils causing problems on aluminum skins. I used to work at Mooney and this was a well-known no-no there. But I hadn't heard about the issues of chlorides or acids in Sharpie ink, and hadn't thought about the carbon dye in black Sharpie ink. I...
IFRs, I worked at an composite experimental GA company for a couple of years. The airplane was mostly carbon fiber but had some fiberglass. We tried using the water jet machine to cut fiberglass but quickly eliminated it as a possibility because it created delaminations emanating radially from...
I am not quite 12 years out of school and am at my third general aviation engineering job. My thoughts, in no particular order:
-Don't fret over which CAD software you learn. Once you learn one they all essentially do the same thing and transitioning from one to another isn't as bad as you'd...
