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Left-wing envirokooks better not oppose this



 
 
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  #71  
Old December 9th 10, 02:50 PM posted to sci.astro.amateur,alt.global-warming
Quadibloc
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Posts: 7,018
Default Left-wing envirokooks better not oppose this

On Dec 9, 7:40*am, Quadibloc wrote:
On Dec 9, 4:31*am, wrote:

Do you think their engineers saw the movie called "No Highway in the
Sky" *?


The people who made the movie probably read (and licensed!) Nevil
Shute's book "No Highway".

And that book was probably written _after_ De Havilland discovered
metal fatigue, being based on the story of that discovery.


Ah, I see I'm mistaken. Both the book and the movie preceded (1951)
the problems with the Comet (1954). But metal fatigue was actually
discovered in 1837, the name having been coined in 1854. But while
metal fatigue was known, it was still not fully understood - and it
was not anticipated that simply having windows with square corners in
the Comet would cause cracks to develop at their corners under the
stress of repeated pressurization cycles.

John Savard
  #72  
Old December 9th 10, 03:27 PM posted to sci.astro.amateur,alt.global-warming
Androcles[_36_]
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Posts: 40
Default Left-wing envirokooks better not oppose this


"Quadibloc" wrote in message
...
On Dec 9, 7:40 am, Quadibloc wrote:
On Dec 9, 4:31 am, wrote:

Do you think their engineers saw the movie called "No Highway in the
Sky" ?


The people who made the movie probably read (and licensed!) Nevil
Shute's book "No Highway".

And that book was probably written _after_ De Havilland discovered
metal fatigue, being based on the story of that discovery.


Ah, I see I'm mistaken. Both the book and the movie preceded (1951)
the problems with the Comet (1954). But metal fatigue was actually
discovered in 1837, the name having been coined in 1854. But while
metal fatigue was known, it was still not fully understood - and it
was not anticipated that simply having windows with square corners in
the Comet would cause cracks to develop at their corners under the
stress of repeated pressurization cycles.

John Savard

http://www.ejpau.media.pl/articles/volume8/issue4/art-34-fig4.jpg



  #73  
Old December 11th 10, 12:27 PM posted to sci.astro.amateur,alt.global-warming
[email protected]
external usenet poster
 
Posts: 9,472
Default Left-wing envirokooks better not oppose this

On Dec 9, 9:50*am, Quadibloc wrote:
On Dec 9, 7:40*am, Quadibloc wrote:

On Dec 9, 4:31*am, wrote:


Do you think their engineers saw the movie called "No Highway in the
Sky" *?


The people who made the movie probably read (and licensed!) Nevil
Shute's book "No Highway".


And that book was probably written _after_ De Havilland discovered
metal fatigue, being based on the story of that discovery.


Ah, I see I'm mistaken. Both the book and the movie preceded (1951)
the problems with the Comet (1954). But metal fatigue was actually
discovered in 1837, the name having been coined in 1854. But while
metal fatigue was known, it was still not fully understood - and it
was not anticipated that simply having windows with square corners in
the Comet would cause cracks to develop at their corners under the
stress of repeated pressurization cycles.


The last sentence in the next-to-last paragraph is interesting:

http://www.century-of-flight.net/Avi...nd%20Comet.htm

As is this exchange about one year before the metal fatigue accidents:

http://www.theyworkforyou.com/debate...-03-11a.1284.0

Since the manufacturer had done only static and not dynamic tests, one
is left to wonder what secrets the HoC was trying to protect.

 




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