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From: tranngocduong@gmail.com
Subject: Re: Boeing 737 and 737 MAX software
Date: Fri, 12 Apr 2019 00:46:31 -0700 (PDT)
Date: 2019-04-12T00:46:31-07:00	[thread overview]
Message-ID: <2590d3d8-5f91-4f59-897e-e0c9b7e1b5ca@googlegroups.com> (raw)
In-Reply-To: <8736mwi257.fsf@nightsong.com>

On Saturday, April 6, 2019 at 4:16:22 AM UTC+7, Paul Rubin wrote:
> Does anyone know anything about this?  It has been under some criticism
> lately.
> 
> I have heard that the 777 software was almost entirely in Ada.  It also
> sounds as if Boeing's software operation may have slipped in recent
> years, not good news for the 737 MAX.

I know nothing about the software. But I don't think it is written in Ada. If it was, programmers must have chosen a wrong subtype.

In the crashed Ethiopian 302 aircraft, ~30 seconds before impact, the nose points 40 deg. toward ground, and the AoA indicates 75 deg. As 40 + 75 = 115 > 90 deg., this would imply negative airspeed.


  parent reply	other threads:[~2019-04-12  7:46 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-05 21:16 Boeing 737 and 737 MAX software Paul Rubin
2019-04-06  1:16 ` Jere
2019-04-06 19:05   ` Paul Rubin
2019-04-18 22:04   ` Paul Rubin
2019-04-19  9:13     ` tranngocduong
2019-04-06 17:30 ` Dennis Lee Bieber
2019-04-06 18:45   ` Niklas Holsti
2019-06-28 23:45   ` Paul Rubin
2019-06-29  2:52     ` Dennis Lee Bieber
2019-06-29  3:38       ` Paul Rubin
2019-06-29 16:29         ` Dennis Lee Bieber
2019-08-07  6:06     ` robin.vowels
2019-11-08  1:12   ` Paul Rubin
2019-11-08 15:32     ` Dennis Lee Bieber
2019-11-18 11:16     ` robin.vowels
2019-11-18 15:32       ` Optikos
2019-04-12  7:46 ` tranngocduong [this message]
2019-04-12 22:15   ` Dennis Lee Bieber
2019-04-17 17:27   ` Maciej Sobczak
2019-04-18  9:45     ` tranngocduong
2019-04-18 12:44       ` Maciej Sobczak
2019-04-18 13:53         ` tranngocduong
2019-04-18 15:13           ` Niklas Holsti
2019-04-18 16:21             ` tranngocduong
2019-04-18 18:20               ` Niklas Holsti
2019-04-20  0:29                 ` tranngocduong
2019-04-18 20:36               ` Randy Brukardt
2019-04-18 20:51                 ` Paul Rubin
2019-04-18 20:20             ` Paul Rubin
2019-04-18 16:39           ` Dennis Lee Bieber
2019-04-19  2:39             ` Dennis Lee Bieber
2019-04-22 19:36             ` Norman Worth
2019-04-28 18:27               ` russ lyttle
2019-04-18 13:50   ` Simon Wright
2019-04-18 15:07     ` tranngocduong
2019-05-05 14:29 ` robin.vowels
2019-05-06 13:54   ` robin.vowels
2019-05-06 15:12     ` Dennis Lee Bieber
2019-08-07  5:51   ` robin.vowels
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