5 ms·
The 737 max is what happens when the bean counters are in control of an engineering firm.
by bfrog 7y ago
The 737 max is what happens when the bean counters are in control of an engineering firm.
- loeg 7y agoThe bean counters will always be there. Alternatively, one can think of the 737 MAX (and prior new 737 models) as an example of regulation imposing perverse incentives. ( https://en.wikipedia.org/wiki/Type_certificate https://en.wikipedia.org/wiki/Type_certificate )
- rob74 7y agoInteresting point, but what would be the alternative? Are you really suggesting that pilots should be able to switch from e.g. the 737 to the A320 without any kind of additional training?
- loeg 7y agoType certificates are not about pilots; they're about airframes. Maybe skim the link? > A type certificate signifies the airworthiness of a particular category of aircraft, according to its manufacturing design (‘type’). It confirms that the aircraft is manufactured according to an approved design, and that the design ensures compliance with airworthiness requirements. And to be clear, since it seems my comment was also not totally clear: I'm not saying aircraft regulation / Type Certification is bad in general. Just that this particular implementation currently has unintended perverse incentives which lead to the 737 MAX.
- diminoten 7y agoI'm generally blown away at the audacity people have to suggest casually changing any FAA regulation, considering how good they are at their jobs...
- Twixes 7y agoWell, clearly they didn't do their job that well in this case
- diminoten 7y agoBoeing fucked up, not the FAA. The FAA is the one preventing Boeing from flying these planes because they're not safe!
- berkut 7y agoErm, it's pretty obvious something was wrong at the FAA, in that it seems fairly clear they let Boeing dictate terms to them on multiple occasions, and effectively overrule them. https://www.seattletimes.com/business/boeing-aerospace/new-questions-raised-on-safety-of-both-737-max-and-787-dreamliner/ https://www.seattletimes.com/business/boeing-aerospace/new-q... Also, the FAA were the last aviation regulator to ground the MAX.
- diminoten 7y agoThe FAA's goal is to prevent aircraft related accidents. While you may not agree about the sharpness of their pencils or the color of their uniforms or some other tangential nonsense, flying is insanely safe in America because of them. They're so good at their jobs, you should be asking what they know that you don't when they make decisions, not trying to correct them.
- berkut 7y agoHistorically, yes. There was a reason previously the CAA and EASA were historically happy accept the FAA's certification for new aircraft, on the assumption the FAA were very good at its job. That no longer seems to be the case (given the fact that EASA now want to have their pilots fly the MAX before it returns to service), and there's well documented evidence (many news articles over the past few months talk about this) showing that over the past 10 years, the FAA's budget was drastically cut, forcing them to effectively outsource certification in part to Boeing to "self-certify".
- anticensor 7y agoPilots are trained to operate particular models too.
- cjbprime 7y agoA pilot is qualified ("type rated") to fly planes of a given type certificate, so it's not helpful to say that type certificates are not about pilots. Having that belief causes you to miss out on fully understanding the situation. I wouldn't call this a perverse or unexpected incentive either. It's very straightforward: there is regulation saying you can't keep the same type certificate if the plane flies differently enough to demand pilot retraining. The regulation is good and the consequences of following the regulation correctly are good, unlike in actual perverse incentive situations. Boeing didn't want to comply with the regulation so they lied about how the plane worked and then hundreds of people died. That's not an example of a perverse incentive of regulation: it's an example of dishonestly evading regulation, hopefully criminally so.
- loeg 7y ago> A pilot is qualified ("type rated") to fly planes of a given type certificate, so it's not helpful to say that type certificates are not about pilots. Eh. The relationship here is between the manufacturer and the FAA. That the regulation is tangentially related to pilots is moot to the point. > It's very straightforward: there is regulation saying you can't keep the same type certificate if the plane flies differently enough to demand pilot retraining. The regulation is good I agree! > and the consequences of following the regulation correctly are good Mostly true! > Boeing didn't want to comply with the regulation This was (arguably) an outcome, but I don't believe it was the goal. I.e., Boeing would love to comply with this regulation in the magical hypothetical where it cost them nothing to do so. They're not comical villains. The problem with this simplistic summary you've provided is that qualifying a new type certificate is extremely costly. Convincing the FAA your new aircraft is actually just a modified version of an existing type certificate (whether or not that is true) is much less costly (and given how much of the 1960s airframe is still being used in the MAX to keep that type certificate, it's even plausibly reasonable to consider it like earlier extensions to the cert). So, long story short, there is a direct financial motivation for Boeing to skirt the rules and pretend new products are just another modified 737. That is exactly the perverse incentive I am highlighting. > That's not an example of a perverse incentive of regulation: it's an example of dishonestly evading regulation, hopefully criminally so. I think you mostly missed the point. Regulations with mostly good consequences can still create perverse incentives in some areas and positive incentives in others.
- paulmd 7y agoThe alternative is that manufacturers shouldn't be allowed to impose new underlying systems to manage undesirable flight handling characteristics without briefing pilots about them and without breaking type certification. the default should be that if the flight handling characteristics of the airframe itself inherently are not the same then it doesn't get type certification, and you should have to prove why your tweaks make it OK.
- Aloha 7y agoIt's what happens when customer desires override engineering sense, it's worse when bean counters are in the loop, but the problem still exists without them present.
- exhilaration 7y agoSo what you're saying it's the sales guys that overrode the engineers. That sounds even worse.
- PopeDotNinja 7y agoBean counters keep me from spending all the money.
- jackweirdy 7y agoAlso very reminiscent of the F-35 program. Designing a small collection of different aircraft, each specialised to a particular role, can produce a complementary fleet with capabilities a modern air force needs. But doing so comes with the overhead of producing lots of different aircraft. Instead, "the spreadsheet" shows that designing one aircraft capable of lots of things comes with the lowest overheads -- but with all the disadvantages of an overcomplicated aircraft and only average performance in each trait.
- ken 7y agoWould you also say that about the 787, 747-8, EA-18G Growler, T-7 Red Hawk, MQ-25 Stingray, and GPS Block IIF? All of those were developed in the time after the MD merger. I agree Boeing isn't the engineering company it used to be, in many ways, but I don't think it's as simple as "controlled by bean-counters".
- pnw_hazor 7y agoThey aren't having much luck with the USAF tanker contract. The USAF has been rejecting deliveries because of poor manufacturing quality. Boeing has irrevocably gone down the tubes. It is time to separate the space/defense groups from commercial and reboot them all. As a Seattle native, it feels strange to seek out A320s when flying, but Boeing has clearly shown that engineering is just a cost center to them.