MadModder
The Shop => Metal Stuff => Topic started by: bry1975 on July 30, 2011, 05:41:32 PM
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http://www.mechanicsupport.com/aluminum_bronze.html
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I think I saw one popular documentary film about that Alaska flight accident, I think main reason was that it had least two maintenance cycles neglected, pilot was operating trim repeatedly (essentially the same screw jack) and mechanically the whole tail wing was moving/supported by only one mechanical screw jack! This kind of design relies it being maintained and inspected regular. I would not blame choice of material.
It surprises me always that on certain industries the whole driving force is trying to make product idiot proof. Idiots are not getting smarter, but our systems and sosiological structures are getting such that we are capable making really idotic deeds only by doing our work as normal. Responsibilities are distributed such way that no-one (or least no organization) can be blamed when people make policies that are good only for them or organization they represent.
Pekka
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what's the eye opener?
use correctly, maintain (a service listed component in all the mentioned cases) correctly, replace as required/instructed, no problem,..... fail to use, service, maintain or replace correctly expect trouble... irregardless of the application or materials.
"Use grease xyz on this component at xxx interval & inspect for wear" is as valid a design/maintenance procedure as "change oil with sae 30 at 10k intervals" or "change tyres when tread is below 1/16""
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Regarding 'eye opener' just an interesting read for the desktop engineer.
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I suspect the author must have been a tabloid reporter in a previous life TBH.