class3shock

Tesla has roughly 140K employees and made 930K cars in 2023. That's roughly 320 hours of their total employee time per car or one person working 40 hours a week for 8 weeks / 2 months. Build…

It is indeed and sometimes it can go either way depending on the time point. A good example is what eventually became the PW GTF, the PW8000, discussed here: https://cornponepapers.blogspot…

I would just add that sometimes ideas exceed the technology of their time. So revisiting a design that had deficiencies (weak points, high production costs, bad emissions, etc.) with new tools, materi…

There is mention in one of the articles he received "limited immunity" for providing evidence, which could have helped him avoid a more aggressive effort to get him. Or maybe they just didn&…

I'm guessing the audio version was added then, I pretty certain there weren't any changes to the article.

It's unclear what happened to him. After the 80s it seems the US decided not pursue him [1] and per another comment it seems he may have passed in 1999. I haven't found much else besides a c…

By chance could you see if there's anything on his son? Eleuthertos George Veliotis Thank you so much for looking!

I don't think his point is to say subpar search results aren't "impactful" but that they aren't going to cause a loss of life. If you work anywhere in the aerospace industry m…

So it goes...

Alot of bright, energetic people out of school sign up because they are doing something unique and cool they truly have a passion for it. So even though the reviews of the place are terrible they will…

Remember people are willing to do just about anything if someone in a position of authority tells them to. New engineers have little "intuition" of what is an isn't appropriate, we rely…

I'm still early in my career in aerospace and am mulling over the same decision. What's stopping me is I'm already older and I do actually enjoy the work, whereas coding with no relatio…

A nonconformance is generally a physical thing. For instance a part my be out of tolerance or have have damage that makes it nonconforming. A noncompliance is generally referring to procedures. For in…

"But the average employee assigned to the 737 program has been at Boeing just five years, according to a longtime Boeing executive who is involved in various efforts to save the company; for comp…

Slightly related, the Maritime Museum in Amsterdam has an interesting exhibit looking at global agriculture trade (which the Netherlands plays a large role in). https://www.hetscheepvaartmu…

Not in commercial jet engines. The four big players have been in the engine game since the 1920s-1940s. Others came and went, some were bought or merged into them, but no one has eaten their lunch. If…

I'm posting this because it is an amazing story but also because I'm wondering if there is anyone in Greece that might know of what became of Takis Veliotis after he fled the US? His name co…

It is not a bloated Boeing thing. It is a FAA thing. https://www.faa.gov/aircraft/air_cert/airworthiness_certific... "Amended type certificates typically take 3-5 years…

https://simpleflying.com/ge-rolls-royce-pratt-whitney/ CFM (GE + Safran) own 39%, PW has 26%, RR has 18%, GE on it's own has 16%. So together they own 99% of the market. Hon…

2002 SpaceX is more where Boom was a decade ago when they were founded, what have they been doing since? They have one demo aircraft, not to scale of what they are marketing, and have not even demoed …

It's not really one thing it's that it takes time and immense resources to put planes/engines through the engineering process and get certified. The 737 Max, took something like a year …

It's not optimistic, it's not an ideal date, it's marketing fluff with no bases in reality. Maybe I'm the odd one out here but does that not bother you?

First, to certify a new aircraft takes 5-9 years (source below). https://www.faa.gov/aircraft/air_cert/airworthiness_certific... Lets say they are really good and they are r…

I wouldn't call it a scam, I think it's like alot of start ups. It looks good, has lots of cool marketing, and "in theory" could work. But after a few years of missing deadlines an…

I guess my criticism is high level because, in my mind, the timeframe they market and what they claim to be trying to do in it, is so beyond what is reasonable that touching on simple aspects of the p…

Or getting it certified that it's safe. https://www.faa.gov/aircraft/air_cert/airworthiness_certific... "Amended type certificates typically take 3-5 years to comp…

There's a world of difference between 2000 lb and 20,000 lb thrust though. And as you mentioned, they teamed up with GE in the end because, to be frank, turbojets are just hard.

It's always possible to innovate. It just happens that often the people claiming too are mostly innovating at separating people from their money. If you want to chat why I think this is more the …

I think if we were just talking about the airframe I would agree that is was possible. Not the engines though. Look at some of the costs and timeframes involved in one of the big 3's newer engine…