If they agree, either one. If they don’t agree, neither.
*From:* Ken Hohhof
*Sent:* Tuesday, November 12, 2019 10:12 AM
*To:* 'AnimalFarm Microwave Users Group'
*Subject:* Re: [AFMUG] OT bad stock tips
Seems like you’d need at least 3 sensors so you could do a vote,
otherwise how do you know which sensor to believe?
*From:*AF <af-boun...@af.afmug.com> *On Behalf Of *Bill Prince
*Sent:* Tuesday, November 12, 2019 11:03 AM
*To:* af@af.afmug.com
*Subject:* Re: [AFMUG] OT bad stock tips
It was more than just software. AOA sensors can malfunction. The mere
fact they made AOA sensor redundancy optional opened the door to this
fiasco.
The other issue that doesn't get enough attention is pilot
training/proficiency. When automatic systems hit boundary conditions,
it helps to know what your options are.
bp
<part15sbs{at}gmail{dot}com>
On 11/12/2019 8:43 AM, ch...@wbmfg.com wrote:
Nobody mentions the Airbus angle of attack sensors that caused a
Lufthansa to almost crash.
They had the luxury of altitude or it would have been a similar
disaster.
According to the interwebs, AOA sensors have caused 50 similar
type of situations in the past five years over a wide spectrum of
aircraft.
Apparently one brand fails more than another common brand.
Sensor failure happens. Software can make it less or more of a
problem. Training can make it non fatal.
The MCAS software was to blame here.
I also do not believe that any automated control input system
should be stronger than the pilots.
Moreover, if the pilots are putting in an input opposite that of
an onboard system, something should disconnect the onboard system
automatically I would think.
Imagine getting into a wrestling match with your Tesla that
decided to take an off ramp.
*From:*Bill Prince
*Sent:*Tuesday, November 12, 2019 9:22 AM
*To:*af@af.afmug.com
*Subject:*Re: [AFMUG] OT bad stock tips
Yup. Moving those engines forward to make clearance was a change
that really narrowed the CG box. My own thought was to figure out
a way to make the landing gear longer without affecting the CG. Oh
well. They made their bed...
bp
<part15sbs{at}gmail{dot}com>
On 11/12/2019 8:15 AM, Carl Peterson wrote:
The newer high efficiency engines are too big to fit under the
wings. The engineers told them it wouldn't work. The
original plan was to start working on designing a new plane,
but they were afraid of losing business to neo so the
engineers were told to make it work. In order to do this,
they pushed the engines up and mostly in front of the wing
which pushed CG forward and moved center of thrust. This lead
to a plane that needs a much narrower flight envelope, i.e it
doesn't want to fly in a lot of attitudes where a real 737 is
fine.
On Tue, Nov 12, 2019 at 9:48 AM <ch...@wbmfg.com> wrote:
Why do you believe it is inherently flawed?
It is a 737, the airframe with the best track record on
the planet.
It is too bad they did not have a voting/contention
algorithm between the two angle of attack sensors and
chose to only use one as the authoritative source. That
was a boneheaded coding decision. The other sensor had
live data on the network that was there for the using.
It is too bad the pilots failed to absorb the training
update telling them to switch off the system when it was
causing control inputs that were obviously wrong.
It is too bad the pilots did not simply switch it off. I
have had runaway trim motors try to do this to me before
and that is something you learn during primary training.
Even then, you can recover almost all upsets with
“push-power-rudder-roll-climb”.
It is too bad that Boeing did not immediately tell
operators to cease using that system after the first crash.
But this is just one system amongst hundreds on the
aircraft, all tried and true for many years.
*From:*Carl Peterson
*Sent:*Tuesday, November 12, 2019 7:18 AM
*To:*AnimalFarm Microwave Users Group
*Subject:*Re: [AFMUG] OT bad stock tips
The Max is inherently flawed and I'd generally say don't
bet on things with inherent flaws. Think F35 and how long
it took to get that kind of sort of right. The CG is too
far forward. Perhaps if they stretched the aft section a
little and swept the wings back a little but then it
wouldn't be a 737 anymore.
I have an idea of building up a list of ISPs with rural
exposure and shorting them because Sarlink is going to
blow up a lot of their business model. In particular,
I'd look for double play ISPs with ARPU above about 75.
On Mon, Nov 11, 2019 at 9:39 PM Chuck McCown
<ch...@wbmfg.com> wrote:
Boeing is going to have a good year. The MAX 737 saga
is coming to an end and their while system will be
better because of it. And then it will be forgotten.
Just like VW emissions testing...
Even so, I am going to stick with my super high priced
index fund. It is at a historical high and I still
dumped more money into it.
*From:*Ken Hohhof
*Sent:*Monday, November 11, 2019 8:26 PM
*To:*'AnimalFarm Microwave Users Group'
*Subject:*Re: [AFMUG] OT bad stock tips
Something like 6 months ago my financial advisor
convinced me to sell my GM stock and buy Boeing. I’ve
suspected I did something stupid ever since. Getting
out of GM was probably OK, but I think Boeing has
plenty of room to drop. I am afraid investors may
dump BA as end of year approaches to clean up their
portfolio or take tax losses, and in any case, they
are not looking like a well run company.
So if you want to double down on your Moviepass
adventure, you could buy a bunch of Boeing.
Or how about Frontier Communications? A bargain at
less than $1. 5 years ago they were at $100.
Bloomberg article a couple days ago says they are
looking for a new CEO ahead of an expected bankruptcy
filing. Which was totally predictable when they took
on a mountain of debt to buy all the areas that
Verizon and AT&T didn’t want. It has to be bottoming
out. No where to go but up, right?
*From:*AF <af-boun...@af.afmug.com> *On Behalf Of
*Chuck McCown
*Sent:* Monday, November 11, 2019 9:03 PM
*To:* af@af.afmug.com
*Subject:* [AFMUG] OT bad stock tips
I am thinking of following up my strategic Moviepass
investment with one in PG&E. It has to be bottoming
out. No where to go but up, right?
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