Saturday, May 11, 2019

The 737 was three Moore's leaps ago

Boeing Altered Toggle Switches in 737 Max Airplanes

Today that cockpit can be replaced with redundant smart phones, and on the new aircraft this is the case, nearly.

Traffic control is best done via smart phone apps, these days.  But all those apps easily integrated  (and are) in the new jets.

This is the major design blunder. This cockpit prevents integrated parameter space, the idea that all software system have access to the complete state space of the plane. That model ain't happening with this cockpit, Boeing has a serious redesign issue. Integrated flight management can handle a meta stable jet, this cockpit is not integrated flight management.

All these news reports go back to this cockpit, and its switches and knobs.  I doubt this version of jet even has a common communication network. A network with uniform presentations so parameter spaces can be understood everywhere, equally.

If I am at Boeing now, I am taking the very deep and broad overview and pricing a complete cockpit redesign. Already this issue has sunk them with billion in losses, how about a production stop and redesign of flight management? Airbus had similar transition points, and handled it better. But there was one or two cases of serious mis-application of autonomy.

The gap in Moore's level causes a duplication of pilot services down the line. Regulations tend to be updated to Moore a little faster than the old jet derivative, pre-Moore. There is a need for the increased safety of software autonomy on hardware additions to old frames.  But this local software does not integrate. It is a tough problem, I have seen it in aircraft systems a few times in a short career doing that.

Anyway, it is deep and broad looking for Boeing. I don't blame the new engines or change in stability, easily handled as long as nothing falls off.  Engineers need look at their latest techology in flight management, especially communications. See what works well in that jet, then try to push the best parts back to the 737 MAX, get flight management upgrades.  The new stuff is light weight, not everything needs be dumped in the old cockpit. Agina, the top three priorities, communicate, communicate, communicate.

An of hand guess for this case. We need three locations for dual redundant intelligent ';boxes', one for integrated management of tail surfaces, one for under carriage, and one with the pilots, each liked with a uniform and simple network.  The new planes have something like that, it is light weight stuff. See if that can be pushed back into currently grounded 737 MAX.  Cost it, you will likely be stringing some optical cable, but all autonomous parts of the plane will be looking at the same model, the one the pilot sees.

The air frame is OK, as my untrained eye can see, no one is complaining about meta stability, it is the system reaction to meta stable. 

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