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=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,d4801f5d6baa249d X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!postnews.google.com!z35g2000cwz.googlegroups.com!not-for-mail From: JPWoodruff@gmail.com Newsgroups: comp.lang.ada Subject: Re: F-22 Raptor software problem Date: 26 Feb 2007 14:08:01 -0800 Organization: http://groups.google.com Message-ID: <1172527680.940307.20400@z35g2000cwz.googlegroups.com> References: <54flirF20fre3U1@mid.individual.net> <1172502110.098416.297700@q2g2000cwa.googlegroups.com> NNTP-Posting-Host: 24.4.18.74 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Trace: posting.google.com 1172527704 22274 127.0.0.1 (26 Feb 2007 22:08:24 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Mon, 26 Feb 2007 22:08:24 +0000 (UTC) In-Reply-To: <1172502110.098416.297700@q2g2000cwa.googlegroups.com> User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.9) Gecko/20061206 Firefox/1.5.0.9,gzip(gfe),gzip(gfe) Complaints-To: groups-abuse@google.com Injection-Info: z35g2000cwz.googlegroups.com; posting-host=24.4.18.74; posting-account=fJYhjA0AAADq5HS0Ommw0DzKlat-I76I Xref: g2news2.google.com comp.lang.ada:9562 Date: 2007-02-26T14:08:01-08:00 List-Id: On Feb 26, 7:01 am, "Aurele" wrote: > On Feb 26, 3:55 am, "Alex R. Mosteo" wrote: > > > > > Hyman Rosen wrote: > > > It's being reported (Slashdot, via CNN) that twelve of these > > > planes had their navigation and communications completely shut > > > down as they crossed the international date line while flying > > > from Hawaii to Japan. I believe much of the plane's software > > > is in Ada, but I have no details as to what caused the error. > > > Linky to slashdot: > > >http://it.slashdot.org/article.pl?sid=07/02/25/2038217 > > > "The new US stealth fighter, the F-22 Raptor, was deployed for the first time > > to Asia earlier this month. On Feb. 11, twelve Raptors flying from Hawaii to > > Japan were forced to turn back when a software glitch crashed all of the > > F-22s' on-board computers as they crossed the international date line. The > > delay in arrival in Japan was previously reported, with rumors of problems > > with the software. CNN television, however, this morning reported that every > > fighter completely lost all navigation and communications when they crossed > > the international date line. They reportedly had to turn around and follow > > their tankers by visual contact back to Hawaii. According to the CNN story, if > > they had not been with their tankers, or the weather had been bad, this would > > have been serious. CNN has not put up anything on their website yet." > > > The summary is, they say in the comments, incorrect, since the F22 relies in > > computers for control so a crash of "all on-board computers" would have been > > quite a bigger problem. > > Well, someone is likely to lose their job for improperly implementing > the geoid and/or datum model! I don't think fault will fall so harshly on the implementer. But the members of the configuration control committee have some explaining to do.