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From: jonathan <johnscpg@googlemail.com>
Subject: Re: Ariane 5 Failure from 1996
Date: Fri, 10 Jul 2009 08:45:21 -0700 (PDT)
Date: 2009-07-10T08:45:21-07:00	[thread overview]
Message-ID: <14e1cf5c-b053-49ec-83c8-d36b9afc49ab@p29g2000yqh.googlegroups.com> (raw)
In-Reply-To: ocle559uc4fu5roesre66ir69bqe9p4f03@4ax.com

On Jul 10, 3:53 pm, John McCabe <j...@nospam.assen.demon.co.uk> wrote:
> Dear All
>
> The other day, some geezer who was presenting to me claimed that
> someone had carried out an analysis to show that, had the Ariane 5
> software been written in C, the first launch would have succeeded.
>
> Are any of you aware of this claim and have information to debunk
> this?
>
> Thanks
> John

Any program that met the requirements would have destroyed the flight
at exactly the same time and in exactly the same way. It could
have been written in C, Ada, or assembly and if it met the
requirements
exactly it would have destroyed flight 501 the same 37 seconds
after liftoff.

Post-flight analysis described the problem as a requirements failure .

(That's my memory of the event.)

Jonathan



  parent reply	other threads:[~2009-07-10 15:45 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-10 14:53 Ariane 5 Failure from 1996 John McCabe
2009-07-10 15:04 ` Martin
2009-07-10 15:09   ` John McCabe
2009-07-10 16:27     ` Hibou57 (Yannick Duchêne)
2009-07-10 18:17     ` John B. Matthews
2009-07-12 14:08       ` Marco
2009-07-12 14:34         ` Dmitry A. Kazakov
2009-07-13 10:03         ` John McCabe
2009-07-14  0:53         ` John B. Matthews
2009-07-14 13:49           ` Nicholas Paul Collin Gloucester
2009-07-14 15:16             ` John B. Matthews
2009-07-14 17:29               ` Nicholas Paul Collin Gloucester
2009-07-14 20:18               ` Ada in teaching (was: Ariane 5 Failure from 1996) Georg Bauhaus
2009-07-14 21:10                 ` Adam Beneschan
2009-07-14 22:36                 ` John B. Matthews
2009-07-14 23:42                   ` Ada in teaching Georg Bauhaus
2009-07-15  1:03                     ` (see below)
2009-07-15 15:08                     ` John B. Matthews
2009-07-15 15:36                       ` John McCabe
2009-07-15 18:28                         ` John B. Matthews
2010-01-08 13:19             ` Ariane 5 Failure from 1996 Nicholas Paul Collin Gloucester
2010-01-08 17:34               ` Hibou57 (Yannick Duchêne)
2009-07-10 16:01   ` Bjarne Bäckström
2009-07-14 20:50   ` sjw
2009-07-10 15:26 ` Albrecht Käfer
2009-07-10 15:38 ` Adam Beneschan
2009-07-10 15:45 ` jonathan [this message]
2009-07-10 18:29   ` John McCabe
2009-07-10 18:44     ` John McCabe
2009-07-10 20:10       ` jonathan
2009-07-11 16:54         ` John McCabe
2009-07-14 14:33           ` Nicholas Paul Collin Gloucester
2009-07-14 14:39             ` John McCabe
2009-07-10 19:46     ` Niklas Holsti
2009-07-11 14:21       ` Albrecht Käfer
2009-07-11 16:55         ` John McCabe
2009-07-10 21:51 ` jimmaureenrogers
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