Are we nearing a point where common technologies are starting to interfere with each other... 5

[JohnRBaker]

If you're not sure what I mean by this question, let me give you and example:

I'm hoping that there might be some pilots and other people who know the airline industry, as well as some people from the world of wireless communications, who could comment about this issue in particular since it seems like something which could have a big impact on two major sectors of our lives, communications and air travel:

Airplane Landings at Risk of Delays on FAA Move to Ease 5G Risk

https://www.bloomberg.com/news/arti...-call-at-t-verizon-5g-safety-steps-inadequate

John R. Baker, P.E. (ret)
EX-'Product Evangelist'
Irvine, CA
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The secret of life is not finding someone to live with
It's finding someone you can't live without

 

[Alistair_Heaton]

I believe today they have agreed to a two week delay.

I suspect though that's linked to the current airline situation in the US. It's apparently utter chaos with crewing and weather.

 

[dik]

Alistair... I found this comment a little disturbing:

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[IRstuff]

OK, but the accident report seemingly indicates that the altimeter(s) in question were problematic, both on that specific aircraft as well as within that airline, with the intimation that this was a long-standing problem of the equipment provided by Boeing for nearly 20 years.

It also appears that like many other issues, redundant sensors don't appear to be properly integrated, and the report alludes to the fact that the left and right altimeters are completely separated systems and there's no oversight function that says, "Hey, my two sensors disagree; you need to do something, given that information." This was likewise the scenario in the MAX accidents, although this type of issue is likely not unique to Boeing.

Altimeters have been problematic for decades; my first introduction to that was a supposed problem with the F111's nap of the earth flight system that relied on the unreliable barometric altimeter that supposedly caused several incidents during the Vietnam War.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

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[Alistair_Heaton]

It also appears that like many other issues, redundant sensors don't appear to be properly integrated, and the report alludes to the fact that the left and right altimeters are completely separated systems and there's no oversight function

That's the balls of it all...

Its 1960 certificated in the case of the 737 and 1980's certificated in the case of the airbus grandfathered and stretched to death aircraft.

Which is a global issue in aviation unless they have to they won't and will use every trick in the book to only reuse old hardware.

There is historical issues which I mentioned above with the USA not wanting or refusing on principle to fit in with the rest of the international world. I also thing there is some metric imperial allocation bias in the mix as well with blocks.

The block works with metric, it doesn't work with imperial.

But the sort of hard place is they won't or can't change the hardware in the USA to modern in the next 5 years or for the cost of the new avionics V price paid for the block. But the airlines and aviation won't pay for the block to keep the current hardware. They are more than happy to blackmail to politicians into giving it to them for free.

 

[Alistair_Heaton]

dik this is all linked to the max threads and the way things operate.

I have just done 4 days of 10 hours studying and 2 days ground school as part of my yearly tech refresher. Next week I have 2 days of 4 hours doing low viz and 1/3 tech emergency faults on the aircraft systems. I will get 2 take-offs on both engines 1 might be normal the other will be rejected the variable bit will be if the other is if the other pilot is still alive by the time we get off the ground. Its not a problem you want the pay you do the shit...

After the sim i have a 6 month break to drink coke zero in the cruise... but I am sure your didn't have any sympathy feelings anyway

 

[Alistair_Heaton]

Faa has released a counter argument against the telecoms letter

https://www.faa.gov/5g

 

[dik]

...sounds like a vacation to me?

Just jokin'... you sound pretty busy at times.

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik

 

[Alistair_Heaton]

After the sim it will be easy enough until start of April then hopefully all hell will let loose with a good summer season.

And a good summer season means I can build my barn and put my new solar plant in October.

I actually feel quiet sorry for USA pilots, they normally get paid by the hour in the air. And they are going to get hammered by this political bun fight.

There is something funny going on which hasn't surfaced yet in the public domain.

 

[Alistair_Heaton]

Well FAA has issued 1400+ NOTAM's with restrictions.

https://aopa.org/news-and-media/all.../faa-publishes-long-expected-5g-c-band-notams

If you can and don't have to travel by air in the USA I would get home by the 18th or give it a couple of weeks after the 19th.

I and I really hope nothing crashes before this can be sorted out. Telecoms and FCC seem hell bent on forcing upgrading of all rad alts to fit with their plans.

 

[JohnRBaker]

I suspect that this is only a temporary solution:

Verizon, AT&T Delay 5G Rollout Near Airports After Warning Of ‘Catastrophic Disruption’

Major airlines had urged that “the vast majority of the traveling and shipping public will essentially be grounded" if 5G was rolled out as planned.

https://www.huffpost.com/entry/verizon-att-5g-delay-airlines-letter_n_61e71474e4b01f707da95a56

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:

The secret of life is not finding someone to live with
It's finding someone you can't live without