[Amps] Good engineering

[Roger]

Paul Decker wrote:
> Definately the wrong attitude, but everything designed has a lifespan.  Bridges, fire suppression systems and airplanes require periodic inspections.   The engineers design to some lenght of time for operation between inspections, but truth be told can't control all the factors which may make the system fail before the time expires.   
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> Paul, kg7hf 
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> What an attitude to have in that profession! Unbelievable... 
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> I guess we can collectively only hope & pray that his graduates didn't get 
> into designing building sprinkler systems ("...Good for one fire!"), bridges 
> ("...Safe for 1012 crossings---good luck if you're the lucky number one 
> thousand & 13th"), and airplanes ("Guaranteed for 100 cross-country flights 
> only"). 
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> Some things you simply can not, & should not, attach to a time-line... 
>   
Strange, it took this post 4 days to get here.

I hate to mention this, but as you mentioned it, many airframes are life 
cycle limited. So many takeoffs and landings and it's rebuild time. 
Aircraft engines are basically life limited to either so many hours, so 
many start cycles, or a combination.

Fire extinguishers are life limited in years whether they are used or not.

73

Roger (K8RI)
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