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- From: henry@zoo.toronto.edu (Henry Spencer)
- Subject: Re: Stupid Shut Cost arguements (was Re: Terminal Velocity of DCX?
- Message-ID: <BzqLrI.M9H@zoo.toronto.edu>
- Date: Thu, 24 Dec 1992 00:09:17 GMT
- References: <9gt204c@rpi.edu> <1992Dec23.132824.14131@iti.org> <STEINLY.92Dec23102952@topaz.ucsc.edu> <1992Dec23.191306.6705@iti.org> <STEINLY.92Dec23121415@topaz.ucsc.edu>
- Organization: U of Toronto Zoology
- Lines: 16
-
- In article <STEINLY.92Dec23121415@topaz.ucsc.edu> steinly@topaz.ucsc.edu (Steinn Sigurdsson) writes:
- >... And are you sure that the first 747 didn't
- >fly? Even the first 707 flew and that was a far more groundbreaking
- >test article...
- >Henry, you there to arbitrate?
-
- I'm not up on the details of the 747's history, but there was (possibly
- still is) a fatigue-test airframe tucked away in a building at Boeing,
- being pressurized and depressurized and stressed and relaxed regularly,
- simulating flight cycles at a greater rate than operational 747s to
- clear their structures for continued operation. It wouldn't be a fully-
- fitted-out 747, but all the structure would be "for real". This is part
- of the cost of safety certification for most any substantial aircraft.
- --
- "God willing... we shall return." | Henry Spencer @ U of Toronto Zoology
- -Gene Cernan, the Moon, Dec 1972 | henry@zoo.toronto.edu utzoo!henry
-