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  1. Replies
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    There are a few things that are different than...

    There are a few things that are different than the typical commercial work. If you are working from paper drawings, I would say read the entire package before you start. It's not at all uncommon for...
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    I don't know the answer, but this was the...

    I don't know the answer, but this was the pre-globilization era. Everyone was making Boeing parts, and Boeing was being fed by hundreds of different shops in the PacNW.

    IIRC it all started about...
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    Well, your question doesn't make a lot of sense...

    Well, your question doesn't make a lot of sense to me. MCAS will be just fine with a more fault-tolerant implementation.

    Conceptually, MCAS is not substantially different from the alpha...
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    I imagine there's a few people on this board that...

    I imagine there's a few people on this board that remember the Boeing Offload days. That office was setup specifically for mom and pop shops to get Boeing work.

    I know a few people that got their...
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    "aerospace parts" is a very broad category. Some...

    "aerospace parts" is a very broad category. Some of it's fussy and some of it is utterly simple.

    I'm about 80% medical and 20% aerospace. I have no certifications- no ISO, no AS9100. I'm a one man...
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    What happens, is the back pressure on the control...

    What happens, is the back pressure on the control column that is needed to pitch the nose up, decreases as the AOA increases and the nacelles start generating lift.

    It doesn't put the plane into...
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    I don't know what you were watching, so I can't...

    I don't know what you were watching, so I can't offer anything about it.

    A single sensor failure does not doom the aircraft, assuming the pilots know how to react.

    The electric trim switch cuts...
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    Yes, that's what it means. One damaged sensor...

    Yes, that's what it means. One damaged sensor would put them out of agreement, and disable MCAS.
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    The update is in flight testing. The major...

    The update is in flight testing.

    The major changes- both AOA vanes will have to agree before MCAS will activate. MCAS will only activate once per flight- it will no longer reset after 5 seconds.
    ...
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    Here's a pic of the nose of a 737 MAX. The flags...

    Here's a pic of the nose of a 737 MAX. The flags are on the pitot tubes, the AOA vanes are below, one on each side.

    MCAS is an extension of STS, which also only uses one alpha vane at a time....
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    There are 2 alpha vanes. MCAS was only using one...

    There are 2 alpha vanes. MCAS was only using one at a time though.

    It uses the pilot side on initial startup, then alternates between the pilot and copilot side on each takeoff.
  12. Bummer. Looks like the part moved. And the...

    Bummer.

    Looks like the part moved. And the tool held up against a lot of force- enough to move the adjacent part.

    That's kind of a semi-marginal setup, it would help to have something stopping...
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    We put in a heat treat line in a shop I used to...

    We put in a heat treat line in a shop I used to run.

    This thread made me cringe a little. A bottle bleeding CO into the furnace isn't a controlled atmosphere- it's just CO in the furnace.
    ...
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    ^^^ Good catch Mike, I hadn't noticed that. It...

    ^^^ Good catch Mike, I hadn't noticed that. It does look pretty sketchy.
  15. Replies
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    The pics aren't good enough to judge the grain...

    The pics aren't good enough to judge the grain size, but I don't see any fatigue in the break- it just cut loose.

    That divot may have happened when it failed, or it could have already been there-...
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    My fanuc machines all have 'end of cycle'...

    My fanuc machines all have 'end of cycle' flashing lights.

    If you open the enclosure at the end of cycle, you can identify the relay by the clicking- it's synchronized with the light.

    Seems...
  17. The sign companies that do vinyl letters and...

    The sign companies that do vinyl letters and decals should be able to print a new overlay to replace the old trashed out one.

    Custom Vinyl Graphics & Decals | Signs Now Portland
  18. Replies
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    One of my all-time short-story favs. Bears...

    One of my all-time short-story favs.

    Bears Discover Fire - Lightspeed Magazine
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    Haha, I know crustaceans. This pic- I had a...

    Haha, I know crustaceans.

    This pic- I had a couple King Crab in the livewell with some Dungies.

    Next morning, I had a couple King Crab. Apparently they like Dungies too...:D

    269145
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    I thought about 5200 also. I haven't found...

    I thought about 5200 also. I haven't found anything that shit doesn't stick to, and it's strong.

    Stuff gets everywhere though, lol. I swear I can cut open a brand new tube and 2 seconds later it's...
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    Because who better to make engineering safety...

    Because who better to make engineering safety assessments than the flight attendant's union? :nutter:
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    P-8A is derived from 737NG. Uses CFM-56 engines....

    P-8A is derived from 737NG. Uses CFM-56 engines.

    No MCAS.
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    I have a Mit 6" that was like that new, but it...

    I have a Mit 6" that was like that new, but it was .020" short. I didn't realize it for a long time- never used that measurement on that caliper.

    One day I noticed it when checking a hole depth....
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    Can you M19? MDI a tool change? Way oil level...

    Can you M19?
    MDI a tool change?

    Way oil level ok?
    Air pressure ok?
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    I'm interested in the #39 HSS Drill, how much do...

    I'm interested in the #39 HSS Drill, how much do you want for it?
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