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A split brain in a plane is a bit of a nightmare. I'm not sure how they can work around it with just two computers.
by xvf22 7y ago
A split brain in a plane is a bit of a nightmare. I'm not sure how they can work around it with just two computers.
- imglorp 7y agoBig "disagree" alarm for the pilots and let them decide to keep either computer or go direct. Airbus has the concept of flight control laws, surfaced and changeable by the wet backups. http://www.airbusdriver.net/airbus_fltlaws.htm http://www.airbusdriver.net/airbus_fltlaws.htm
- linuxftw 7y agoWhich computer calculates that there's a disagreement, and how can we ensure it's not indicating a false negative?
- TomVDB 7y agoAnd Boeing will make that disagree alarm an optional extra?
- cmurf 7y agoAm optical extra that isn't actually properly functioning as intended in numerous delivered products? Almost as if it wasn't sanity tested in one production unit, let alone some random sample of units?
- cmurf 7y agos/Am optical/An optional https://www.aviationtoday.com/2019/05/06/boeing-angle-of-attack-disagree-alert/ https://www.aviationtoday.com/2019/05/06/boeing-angle-of-att...
- 0xffff2 7y ago>go direct That's not really a thing in modern airliners. The computer is still heavily involved even when hand-flying the plane.
- DuskStar 7y ago"Thankfully", the 737 series isn't a modern airliner, and isn't fly-by-wire. All control inputs are directly linked to the relevant outputs, though sometimes with power assistance.
- imglorp 7y agoIt is on the Airbus, one of the control laws, see link above. It's still FBW though, so one might argue that "mechanical backup" is really what you want. As for "modern", the A320 had control laws in 1984 and the 777 in 1994.
- dk- 7y agomy CS201 class 19 years ago taught me this. education just isn't as good these days..