Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Boeing MAX production cut signals long grounding

leehamnews.com

Post reply on HN
Print view View original

161–164 of 164 posts

Re: Boeing MAX production cut signals long grounding

#161

Post by pintxo »

XMPPwocky wrote: post #130
pintxo wrote: post #72

Earlier quoted context omitted.

Does it matter? We are talking about type approvals here. And this type is also sold in the US.

My question is "is it illegal to manufacture an airliner in the US without FAA approval, providing it's never actually flown in the US?" It's somewhat abstract, but it's an interesting question to me, which is why I asked. Does the FAA's authority to regulate aircraft construction come from Congress specifically delegating authority over aircraft construction to them- or does the FAA only effectively have the ability…

I have no knowledge about the actual process, but can only assume that everyone is allowed to build a plane. But flying it is ~probably~ hopefully the thing that‘s regulated.

Re: Boeing MAX production cut signals long grounding

#162

Post by m_mueller »

cryptonector wrote: post #160
m_mueller wrote: post #110

Earlier quoted context omitted.

Not GP but I'm mainly wondering about the likelihood of departure stalls with this design.

In the event that MCAS is disabled, the pilots will have to work harder to notice impending stalls and prevent them. Which is why this requires training.

It's disabled with wings in departure configuration though isn't it? Isn't a scenario likely (i.e. another 10E-5) where a stall happens right on takeoff, say because of updraft or pilot error (although without training on this plane it would be hard to even call it that).

Re: Boeing MAX production cut signals long grounding

#163

Post by ulfw »

cryptonector wrote: post #159
ulfw wrote: post #141

Earlier quoted context omitted.

No training in the world will help if this system malfunctions and puts the nose down at 1000ft already. You can't react fast enough to not hit the ground. Also I don't want to fly in a plane where 'trained' pilots have to fearfully watched every feet they climb to quickly overturn a system that malfunctions.

That's clearly not true, since the day before the Lion Air crash a pilot flying in the jump seat was able to diagnose and correct the issue.

At 40,000 feet you have ample time to react. At 1000 you don‘t. That‘s my argument.

Re: Boeing MAX production cut signals long grounding

#164

Post by cryptonector »

ulfw wrote: post #163
cryptonector wrote: post #159

Earlier quoted context omitted.

That's clearly not true, since the day before the Lion Air crash a pilot flying in the jump seat was able to diagnose and correct the issue.

At 40,000 feet you have ample time to react. At 1000 you don‘t. That‘s my argument.

IIUC the incident the day before the Lion Air crash was also on take-off.
Post reply on HN