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Re: it's nice the Astro's are
patb2009   7/24/2015 3:15:46 PM
be aware of wireless there are some serious ionized layers going up where the ionosphere is radio opaque and there are some serious particle discharges from the sun that upset radio transmission.


Trust me, s/c designers have discussed all this before there are reasons some of it has never been implemented.


low probability failure in aerospace isn't 1:1000 its often 1:billion or 1:trillion.


so its hard to test all this out

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Re: it's nice the Astro's are
78RPM   7/24/2015 3:06:17 PM
Your concerns about being overwhelmed by hundreds of warnings highlight the need for good design -- well thought out but with plenty of input from pilots and scientist non-pilots who might be on board. There needs to be clear distinction between inputs (switches, controls) and outputs (information, warnings, status). Colors of switches can be a good indicator of status.  I assume systems will have plenty of redundancy. The cool thing about glass is that instrumentation can be changed quickly in software, assuming good modular design is used.

Imagine how much smaller the Atlas rockets that took men to the moon could have been if there had been MCUs, FPGAs, SoC, glass input. WiFi, Bluetooth, CAN, and ZigBee could have eliminated a lot of wiring weight. Slide 5 shows how paper manuals are replaced with weightless electronic documents. And a 3D printer could eliminate the need to inventory some parts that might or might not be needed. My parents generation truly was "The Greatest Generation" in that they had dreams of a better world for common people.

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it's nice the Astro's are
patb2009   7/24/2015 11:22:15 AM
coming through the design center, but I would hope they bring in airline pilots

with experience in Old School transports like the 727 as well as new school

777, 787, A320...


A glass cockpit can be more problematic then switches.  

Switches by their layout force a limited number of key functions to the panel, eyebrow

and overhead, and establish a priority scheme in that startup functions are on one side,

while emergency functions are in the center.


a glass cockpit can overwhelm you with a hundred warning messages


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