From: Maciej Sobczak <see.my.homepage@gmail.com>
Subject: Re: Boeing 737 and 737 MAX software
Date: Wed, 17 Apr 2019 10:27:42 -0700 (PDT)
Date: 2019-04-17T10:27:42-07:00 [thread overview]
Message-ID: <5f483f72-9213-4c63-b3f9-7150fc4e455f@googlegroups.com> (raw)
In-Reply-To: <2590d3d8-5f91-4f59-897e-e0c9b7e1b5ca@googlegroups.com>
> I know nothing about the software.
Me neither, so we are in a perfect condition to discuss it!
> 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.
So how would Ada help in this situation?
What if the above addition is never performed? Because, you know, the result of this addition indicates a flight parameter that either nobody cares about or that is already obtained by other (presumably more reliable) means?
In which case Ada would be a perfectly valid language there.
--
Maciej Sobczak * http://www.inspirel.com
next prev parent reply other threads:[~2019-04-17 17:27 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
2019-04-12 22:15 ` Dennis Lee Bieber
2019-04-17 17:27 ` Maciej Sobczak [this message]
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
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox