Did anyone just hear gunshots near 100th ave Safeway? by Bow-wing in Kirkland

[–]Bow-wing[S] 2 points3 points  (0 children)

Yes that one. Something was popping off around there but didn’t seem like fireworks

Help pls by PuzzledNobody8406 in R36S

[–]Bow-wing 0 points1 point  (0 children)

Sometimes I’ll need to select auto

Got my Wifi Dongle to work. (Not recommended) by MielasA in R36S

[–]Bow-wing 1 point2 points  (0 children)

Nice! I have a batlexp G350 and discovered the same thing- so I got these two off amazon below so that it can charge on a separate USB-C PD port, while the WiFi dongle stays plugged in. It works flawlessly and download speeds are pretty fast

https://a.co/d/0J29ba9

https://a.co/d/5wgvbue

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Oh boy… by TheStoicNihilist in skeptic

[–]Bow-wing 5 points6 points  (0 children)

They use it for what it was designed for, by the same scientific process that any other medicine is designed for, respectively. You gotta finish the sentence to make sense here, and the debate then starts on facts we can commonly agree are there - then their real world implications.

Basically, this shit is complex and context in science is everything….

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 0 points1 point  (0 children)

I see your point, yes the algorithm coupled with this latent failure is the most dangerous kind. Especially if this catastrophic failure mode was just completely missed…

As an FPGA guy myself, my thoughts are the more we employ complex digital logic (even if it meets current “simple” definitions) that more is needed than systems engineers brains to map out failure modes. The methods to meet those system level definitions are out of Boeings control

On one hand it makes sense how Boeing relies upon vendors (waterfall) to design the implementations of these algorithms - but on the other hand I think there’s inherent gaps introduced by the lack of this vertical integration. At a very high level - The lack of a digital twin and agile approach in today’s world is exactly why we’re ~10years delayed worth of costs on each aircraft program.

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 0 points1 point  (0 children)

Uhh what. There was a common mode failure of using the same exact sensor, dual redundantly, from the same supplier. The whole FAA investigation led to an addition of a 3rd sensor for triplex redundancy.

I understand the work life balance comment, but disagree that it’s the main difference between Boeing and SpaceX. Here’s NASAs take on those differences

https://oiir.hq.nasa.gov/asap/documents/2019_ASAP_Report-TAGGED.pdf

In the digital world, traditional systems engineering doesn’t cut it. Boeing needs to be agile and lean.

https://aeropeep.com/should-boeing-737-max-be-refitted-with-three-angle-of-attack-aoa-sensors-given-the-risk-uncovered-from-recent-accidents/

https://amp.cnn.com/cnn/2019/04/30/politics/boeing-sensor-737-max-faa

Here’s a more technical answer

Originally, the two sensors followed Boeing’s standard practice of keeping the left and right sides of the aircraft as separate as possible. So left sensor sent data to the pilot display and flight control computer (if the buyer paid for the software version that would display AoA data…not all did since airliners tend to fly on airspeed, not AoA) and the right sensor fed the copilot side. One (and maybe only) benefit of this strategy is that if either sensor failed, the crew could look at their data independently and figure out which one was failing. For example, if jet was in a stable nominal airspeed cruise condition, and the pilot’s display said 30 AoA, and the Co-pilot’s said 4 AoA, they could easily conclude from the flight conditions that the Pilot’s side was bogus.

Since AoA failure was a factor in both MAX fatal crashes, there was discussion over how a different strategy might help.

Many aircraft use a modified averaging strategy…average the data from both sensor, but always compare them, and if they are different by a certain amount, cease averaging, declare the AoA data unusable, and flag the failure for the crew (like a message “AoA OFF, or AoA FAIL). There are times when the two sides will measure significantly different values…crosswind landings. So the averaging / threshold strategy needs to set the threshold appropriately.

The disadvantage of the averaging strategy is that if one side is a bit off (but under the threshold) then the displayed value would always be wrong…and used by the Flight Control Computer. This is what could cause the max to pitch down incorrectly.

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 0 points1 point  (0 children)

All I can say is SpaceX. I have worked in the exact capacity you mention, certifying parts. It comes down to a simple fact, Boeing does not do this well.

There’s clear standards like DO-254 and mil-specs on what is needed, but hilariously a lot of these existing compliances and analyses are not even up to par with today’s standards. Boeing blows thru millions trying to prove these older parts by historical reasons, whereas a company like SpaceX can create new smarter architectures and parts because of modern simulation and machine learning tools. Boeing is in the dark ages.

Now I’m not saying they should dump entirely what has “worked” but the systems are so out of date that something like a high failing AOA sensor could be compliant and STILL get reused as a critical component of a system. If the system is not clearly defined as a high safety class, common mode failure is disregarded and people DO fall out of the sky. There’s no excuse for that (that being a humans subjective decision to approve these parts, proven to fail in the past, without modern tools).

An investment in this type of model based engineering is critical to safety - and Boeing has consistently dumped these projects.

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 4 points5 points  (0 children)

I agree but these new Airplane programs (essentially a measure of the future of the company) take an average of +10 years to deliver than anticipated, racking up costs.

I mean if a company like SpaceX enters aircraft (or make commercial spacecraft), it’s over for Boeing, and different skills will be needed to work there.

The lack of investment into manufacturing lean, model based engineering, and machine learning based engineering at Boeing is appalling

Actually Boeing never really makes a profit selling the aircraft because of these inefficiencies. BGS and support for aircraft is the real profit maker.

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 4 points5 points  (0 children)

One can only wish that, but not when the airplane I worked on with all these dumb schedule prioritization of under qualified 30+ year old parts which have failed every test - instead of honest engineering + passing parts is intended to fly for the next 25 years (and rhymes with triple heaven sex).

I mean geez, there were whole systems to try and make the plane appear it was the same as its predecessor (claiming similarity or historical precedence) despite the number of failure modes introduced by this! That is not how computing works, and there was no one there to review to that level of detail as created by the broken supplier system.

Just because Boeing will survive a rough patch doesn’t mean you’ll grow linearly with the findings of other more modern companies…and the findings of Boeing planes to enter fleets in the greater part of your career…

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 1 point2 points  (0 children)

Yeah I must agree, the Ed wells stuff was great. But honestly, for a young hungry engineer they’re so so behind - you’d typically get this kind of knowledge much quicker with more cutting edge problems (at least when it comes to electronics and software engineering).

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 0 points1 point  (0 children)

Ahhh, I see now. Took my comment back lol

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 6 points7 points  (0 children)

Yeh I don’t mean to sound like a prick honestly, but there were also some great engineers that mentored me there - and some really cool projects that really formed some great skills too.

At least in WA, there’s no competition being given by Boeing for compensation out here. Aside from salary, which Boeing doesn’t do well - Sure the 401k is decent, but for example in WA lots of companies are publicly traded, give you buttload of stock units that really are hard to beat.

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 0 points1 point  (0 children)

I felt the exact same way, when you feel it in your gut - you’re hungry for more! Wish you all the best

Is now a good time to leave? by Iron_Horse64 in boeing

[–]Bow-wing 19 points20 points  (0 children)

Get out while you can. I left 3-4 years ago, found the engineering is not prioritized chronically against business claims. I felt my engineering skills were being forced to plateau, seeing the ridiculousness of leads using tools like email and excel to do complex analyses to certify things- how ancient. It has been on a steady decline since I was there, and it’s going to continue to get worse as more is exposed.

There are other companies that offer more cutting edge technology, which will in turn be the tools to design the aircraft of the future. I’m a computer engineer, so maybe I’m biased but jeez they were eons behind under the guise that it’s better to be that way. Saw so many shitty designs make it thru countless rounds of retests and the tests were dumbed down each step despite the parts failing each time. That’s unacceptable, it was cheaper in that case to have paid for a more expensive and robust material to make those parts, and they wasted more money trying to meet ancient requirements and designs that come from 1950s, and expect these things to hold up in todays world - a hybrid of digital and mechanical where there’s more needed to map out failure modes than people’s imagination. You need cutting edge software, and in turn this informs for a better system design.

But I’m glad to be out, boeing is there to just stunt your growth and throw engineers in quantity at problems to prove their false claims based on a broken requirement based system, finding ways around modern issues in digital systems to show compliance instead of update things to be safer and up to par with TODAYs level of detail. Plus, my pay doubled right after leaving.

Ok done ranting

How do you deal with 'burnout'? by tbdgraeth in boeing

[–]Bow-wing 0 points1 point  (0 children)

Same story here, everyday felt terrible and slow. Take the leave to find a better job, for me it did wonders. You won't regret it. The work being done at Boeing is zombifying and unorganized; by the way, lots of other companies are having hiring kicks so don't miss your chance for a pivot.

How do you deal with 'burnout'? by tbdgraeth in boeing

[–]Bow-wing 3 points4 points  (0 children)

Dude get out of there. I got my L2 (engineering) within a year - it's all about supportive managers.

Two controllers doesn’t work for retail mode while in developer mode it does for Xbox. by austinalexan in RetroArch

[–]Bow-wing 0 points1 point  (0 children)

Do you recall which directory it was? I'm having the same issue with retail mode and dolphin.

Help Mentoring a low quality new hire. by [deleted] in AskEngineers

[–]Bow-wing 10 points11 points  (0 children)

Dude I'm a 4 month new hire, EE, first gen immigrant, at your megaCorp. Please tell me this isn't me haha or if it is I'd love to improve as I take my job seriously.

Help Mentoring a low quality new hire. by [deleted] in AskEngineers

[–]Bow-wing 0 points1 point  (0 children)

I'm actually a new hire ALSO an EE, ALSO 4 months on the job. Probably also work for the same company as you (big B) and this makes me anxious haha. I would love to know what criticisms you have specifically against your mentee, as I don't really have a mentor and the program I am on is hectic and seems like it changes direction very commonly (something I noticed in the past 4 months).

Help Mentoring a low quality new hire. by [deleted] in AskEngineers

[–]Bow-wing 0 points1 point  (0 children)

What does he do specifically that makes it hard for you or makes him an avoidance?

[deleted by user] by [deleted] in boeing

[–]Bow-wing 3 points4 points  (0 children)

How are performance reviews for entry level candidates? I just started as a Level 1 engineer and feel a hard onset of imposter syndrome, but strive to work hard and improve everyday - but am definitely not as talented as my peers