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Ola posted:We were [light green percentage] successful in communicating paint codes to subcontractors this quarter! You laugh but I literally had an engineer ask me yesterday why we use green primer on parts instead of a different color
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# ? Feb 5, 2021 14:31 |
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# ? May 27, 2024 08:11 |
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rscott posted:You laugh but I literally had an engineer ask me yesterday why we use green primer on parts instead of a different color It's a valid question in some instances. For airplanes, there's green, yellow, and gray primers for different surfaces.
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# ? Feb 5, 2021 14:57 |
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babyeatingpsychopath posted:It's a valid question in some instances. For airplanes, there's green, yellow, and gray primers for different surfaces. lol I do all the outside processing purchasing for an aerospace company, trust me I know how many different primers there are. Green is the default color when a color isn't specified in BAC 5736, it's right front and center but that doesn't matter when the engineers don't bother to read the specs.
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# ? Feb 5, 2021 16:07 |
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rscott posted:lol I do all the outside processing purchasing for an aerospace company, trust me I know how many different primers there are. Green is the default color when a color isn't specified in BAC 5736, it's right front and center but that doesn't matter when the engineers don't bother to read the specs. That is known as an Unknown unknown.
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# ? Feb 5, 2021 16:18 |
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rscott posted:lol I do all the outside processing purchasing for an aerospace company, trust me I know how many different primers there are. Green is the default color when a color isn't specified in BAC 5736, it's right front and center but that doesn't matter when the engineers don't bother to read the specs. There's a lot of specs. In my experience in helping select coatings for environmentally sensitive equipment the primer color generally indicates composition, compatibility and use. I've never heard of green being a default color for aerospace primer it must be only for generic primers without special application considerations. edit: I looked around a bit. In this case the green color in BAC 5736 is because it's a zinc chromate primer which is an anti-corrosion material. So, yes, the color does indicate a specific composition and use and isn't just because. Murgos fucked around with this message at 18:18 on Feb 5, 2021 |
# ? Feb 5, 2021 17:58 |
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Yes, I think that was the original joke. Aerospace primers are nearly always yellow or green because they are zinc chromate anti-corrosion primers. It's not just green pigment.
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# ? Feb 5, 2021 18:20 |
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Sagebrush posted:Yes, I think that was the original joke. Aerospace primers are nearly always yellow or green because they are zinc chromate anti-corrosion primers. It's not just green pigment. The joke was mostly that engineers are bad at reading parts lists and specs but yes, BMS 10-11 primer only comes in yellow and green, as do the vast majority of other aerospace primers for aluminum parts.
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# ? Feb 5, 2021 19:01 |
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Sagebrush posted:Yes, I think that was the original joke. Aerospace primers are nearly always yellow or green because they are zinc chromate anti-corrosion primers. It's not just green pigment. Not just green pigment? Oops.
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# ? Feb 5, 2021 19:21 |
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Sagebrush posted:Yes, I think that was the original joke. Aerospace primers are nearly always yellow or green because they are zinc chromate anti-corrosion primers. It's not just green pigment. I guess I saw it backwards? The parts aren't green because that's what the spec says. The spec says, 'leave it green unless told otherwise' because they (Boeing) doesn't want suppliers giving them equipment that they have trouble figuring out has the proper coatings on it. The engineer, in asking why they use a green primer should have been told, 'because we use Zinc Chromate for corrosion resistance and that's green unless you add a pigment to it.' Not, 'gahd, canchu read? The spec says green'.
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# ? Feb 5, 2021 20:01 |
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Nah, I'm not going to spoon feed basic information that anyone who's been working in aviation as long as this guy should know because he's too stupid/lazy to branch beyond what the parts list says. Both the spec for the application of the primer and the primer itself say to use green if a color isn't specified.
rscott fucked around with this message at 20:10 on Feb 5, 2021 |
# ? Feb 5, 2021 20:06 |
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i don't have any idea what's going on any more
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# ? Feb 5, 2021 20:21 |
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Now I want to hear the other guy's account of what happened when he asked rscott a question about primer.
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# ? Feb 5, 2021 20:32 |
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It turns out it's all just a big misunderstanding about a plane ordered by Aer Lingus
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# ? Feb 5, 2021 20:37 |
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EasilyConfused posted:Now I want to hear the other guy's account of what happened when he asked rscott a question about primer. I just copy and pasted the relevant paragraph from the spec and the guy was like, "oh thanks I never dove into that spec before" Which is like the first thing you do when you have a question that isn't answered by the engineering dataset or parts list.
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# ? Feb 5, 2021 20:56 |
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Aeronautical Insanity: Green Paint!
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# ? Feb 5, 2021 21:49 |
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rscott posted:I just copy and pasted the relevant paragraph from the spec and the guy was like, "oh thanks I never dove into that spec before" It was more dramatic in my head.
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# ? Feb 5, 2021 22:00 |
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Kawasaki EC-1. Apparently a EW training aircraft. Also: Nebakenezzer fucked around with this message at 22:56 on Feb 5, 2021 |
# ? Feb 5, 2021 22:52 |
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A bee bit my radome! Now my radome's big!
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# ? Feb 5, 2021 23:30 |
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Nebakenezzer posted:Kawasaki EC-1. Apparently a EW training aircraft.
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# ? Feb 6, 2021 00:10 |
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Looks drat near identical to General Grievous' ship from Revenge of the Sith in profile but not at all from any other angle.
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# ? Feb 6, 2021 03:11 |
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Humphreys posted:HOAs are something I thought were stupid american myths.... But no, literal Karen Organizations. That's what I'm going to call them from now on, thank you.
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# ? Feb 6, 2021 05:07 |
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Syd Mead reporting in.
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# ? Feb 6, 2021 05:20 |
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LOL Not gonna post the videos but Scrappy has NOS and an airframe parachute EDIT, content Humphreys fucked around with this message at 12:01 on Feb 6, 2021 |
# ? Feb 6, 2021 07:32 |
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Does anyone have any recommendations for books on early commercial air travel? I’ve got stuff about early air combat but not people flying airliners around in the ‘20s and ‘30s.
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# ? Feb 6, 2021 12:35 |
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Luigi Thirty posted:Does anyone have any recommendations for books on early commercial air travel? I’ve got stuff about early air combat but not people flying airliners around in the ‘20s and ‘30s. Fate is the hunter is written by an airline pilot who flew in roughly that era. A lot about DC2 and DC3 flying and all the hair raising, seat of the pants poo poo of the era. It covers his career so goes into his non combat flying during the war and the beginning of the jet age as well. Carth Dookie fucked around with this message at 12:41 on Feb 6, 2021 |
# ? Feb 6, 2021 12:38 |
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Luigi Thirty posted:Does anyone have any recommendations for books on early commercial air travel? I’ve got stuff about early air combat but not people flying airliners around in the ‘20s and ‘30s. “The Eighth Sea” by Frank T. Courtney. He started as a civilian pilot before WWI, served in combat and then as a test pilot, flew commercial in the interwar, as a research and test pilot in WWII, and commercially after the war. Went from pre WWI fabric and wood barely-airplanes to 747s, and mostly everything in between. He also claims to have taken Glenn Curtiss for his last flight in an airplane before he died.
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# ? Feb 6, 2021 13:22 |
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Thanks! Both look really interesting and just what I’m looking for.
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# ? Feb 6, 2021 18:04 |
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Luigi Thirty posted:Does anyone have any recommendations for books on early commercial air travel? I’ve got stuff about early air combat but not people flying airliners around in the ‘20s and ‘30s. "An American Saga - Juan Trippe and his Pan Am Empire" is a good book about Pan Am's maneuvering to establish international airways, and their special political position, from the 1920s-1960s. How they built the seaplane bases in the Pacific is a real trip, they would just pack a ship full of av gas, construction materials, and young men, and send them to abandoned islands. Once there was a channel cleared for landing, and a hotel had been built, they'd just start flying Clippers out there.
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# ? Feb 6, 2021 20:34 |
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wzm posted:"An American Saga - Juan Trippe and his Pan Am Empire" is a good book about Pan Am's maneuvering to establish international airways, and their special political position, from the 1920s-1960s. How they built the seaplane bases in the Pacific is a real trip, they would just pack a ship full of av gas, construction materials, and young men, and send them to abandoned islands. Once there was a channel cleared for landing, and a hotel had been built, they'd just start flying Clippers out there. Just knowing about Trippe from The Aviator, he seems like a real rear end in a top hat, up in his little star chamber at the top of the Empire State Building, trying to use postwar investigations to establish a monopoly on overseas flights. Hilariously, though, he really seems to have picked the wrong opponent in Howard Hughes, as pretty much everything he did eventually leaned into the strengths of Hughes' mental health problems, namely his massive paranoia. Other people might have been flummoxed by conspiracy, but using one against Hughes was like deciding to fight him in a OCD contest. Can talk about The Aviator on request, it's better than I remembered
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# ? Feb 6, 2021 20:44 |
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wzm posted:av gas, construction materials, and young men My kinda hardware store.
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# ? Feb 6, 2021 21:20 |
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Luigi Thirty posted:Does anyone have any recommendations for books on early commercial air travel? I’ve got stuff about early air combat but not people flying airliners around in the ‘20s and ‘30s.
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# ? Feb 6, 2021 21:54 |
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Nebakenezzer posted:Just knowing about Trippe from The Aviator, he seems like a real rear end in a top hat, up in his little star chamber at the top of the Empire State Building, trying to use postwar investigations to establish a monopoly on overseas flights. Hilariously, though, he really seems to have picked the wrong opponent in Howard Hughes, as pretty much everything he did eventually leaned into the strengths of Hughes' mental health problems, namely his massive paranoia. Other people might have been flummoxed by conspiracy, but using one against Hughes was like deciding to fight him in a OCD contest. Was that Alec Baldwin playing him? Been ages since I saw that.
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# ? Feb 6, 2021 22:47 |
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priznat posted:Was that Alec Baldwin playing him? Been ages since I saw that. I think it was Alan Alda. Edit: Nevermind, he played a senator. It was Baldwin.
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# ? Feb 6, 2021 23:16 |
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BobHoward posted:According to reports on a couple other message boards, Raptor guy flew again today, requested an early landing, shortly after declared emergency due to low oil pressure, then a couple minutes later reported engine out. He seems to have landed safely. He just posted a video today and no mention of it?. Is this confirmed anywhere? Edit: Oh next video is going to be "exciting".
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# ? Feb 7, 2021 02:34 |
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ImplicitAssembler posted:He just posted a video today and no mention of it?. Is this confirmed anywhere? It's confirmed, I've seen/heard it. People linked to ATC comm recordings which have the emergency declaration and subsequent announcement that he was engine-out. Someone also shot and posted video from the Valdosta tower showing the emergency landing, the Raptor being towed off the runway, and a truck doing FOD inspection. Peter's also been removing comments on his existing YT vids which were trying to discuss it. Apparently, even after this incident, he's talking about working on things like the static port and flying it to the west coast. Current speculation on homebuiltaircraft is that his automotive ECU may have saved the engine from grenading itself by going into a limp mode. If true, that's not good for his future as a living human being in good health, because he's almost guaranteed to use that as an excuse to continue flying without making real changes to his extremely unsafe auto engine installation.
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# ? Feb 7, 2021 03:51 |
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Discussion appropriate: https://twitter.com/CockpitChatter/status/1358009982105513988?s=19
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# ? Feb 7, 2021 11:52 |
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Duct tape plane of Theseus.
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# ? Feb 7, 2021 20:24 |
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InAndOutBrennan posted:Discussion appropriate: Probably sturdier than some repairs made in WWII
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# ? Feb 7, 2021 20:35 |
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No comments https://www.youtube.com/watch?v=j9u9ZuQXPzQ
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# ? Feb 7, 2021 22:35 |
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# ? May 27, 2024 08:11 |
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They must’ve been shooting that approach to alternate minimums.
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# ? Feb 7, 2021 22:42 |