From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: ** X-Spam-Status: No, score=2.1 required=5.0 tests=BAYES_20,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,a48e5b99425d742a X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,a48e5b99425d742a X-Google-Attributes: gidf43e6,public X-Google-Thread: 1108a1,5da92b52f6784b63 X-Google-Attributes: gid1108a1,public X-Google-Thread: fac41,a48e5b99425d742a X-Google-Attributes: gidfac41,public From: Martin@nezumi.demon.co.uk (Martin Tom Brown) Subject: Re: Please do not start a language war (was Re: Papers on the Ariane-5 crash and Design by Contract Date: 1997/03/20 Message-ID: <858850946snz@nezumi.demon.co.uk>#1/1 X-Deja-AN: 227172666 References: <332B5495.167EB0E7@eiffel.com> <5giu3p$beb$1@news.irisa.fr> <332ED8AB.21E7@lmtas.lmco.com> <199703190839.JAA02652@stormbringer.irisa.fr> <33302A36.7434@lmtas.lmco.com> <5gq97v$iks@flood.weeg.uiowa.edu> X-Mail2News-User: Martin@nezumi.demon.co.uk X-Mail2News-Path: nezumi.demon.co.uk Organization: Nezumi Reply-To: Martin@nezumi.demon.co.uk Newsgroups: comp.lang.eiffel,comp.object,comp.software-eng,comp.lang.ada Date: 1997-03-20T00:00:00+00:00 List-Id: In article <5gq97v$iks@flood.weeg.uiowa.edu> WhiteR@CRPL.Cedar-Rapids.lib.IA.US "Robert S. White" writes: > proved to be wrong for the case of the Ariane 5 flight dynamics. In my > experience I would have required that inertial alignment stop immediately > upon rocket release. Still don't understand why alignment was deliberatly > continued for the early part of the flight. Once you are moving. stop > aligning, simple as that. According to the report it was a fixup put in to allow Arianne 4 countdowns to hold and restart at the last minute without incurring large time penalties for pre-launch reallignment. Regards, -- Martin Brown __ CIS: 71651,470 Scientific Software Consultancy /^,,)__/