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I'd be very interested in what they are saying if --and only if-- they had access to Boeing and FAA design and test data. You have to remember that the FAA had
by robomartin 14y ago
I'd be very interested in what they are saying if --and only if-- they had access to Boeing and FAA design and test data.
You have to remember that the FAA had to approve these subsystems as well. I don't have any first-hand experience on just how detailed (or not) this certification process might be. Once again, how could anyone say anything at all without looking at data.
To make a really dumb analogy, it's like claiming to know what happened with a race horse that died clear across the country because you know race horses. Wouldn't you first have to see the veterinarian's records on that horse as well as such things as dietary and other data before really being able to say anything at all.
In other words, I am not detracting from the expert status some of these folks enjoy. Not at all. I think it is precisely because they might be domain experts at some level that they should behave with decorum and refrain from making comments without a full stack of the necessary data.
- wololo 14y agoAnd the FAA seems pretty conservative? "Finally, the FAA changes so slowly that if this were even all possible, the adoption and certification would all take at least 50 years." --Eric Schmidt, http://longbets.org/4/ http://longbets.org/4/
- robomartin 14y agoWell, either we believe that government is the solution to all our problems or we don't. Right? (In jest)
- notahacker 14y agoI'm not sure that erring on the side of caution is a bad thing when it comes to commercial jets, especially when "erring on the side of caution" means requiring an airline carrying large numbers of paying passengers needing to pay two qualified pilots to sit in a cockpit just in case things go wrong. I suspect most people underestimate just how many different separate electronic systems, usually developed and manufactured by independent specialists, are involved in controlling an aircraft (not to mention the new ones that would need to be developed for when things go wrong: there's a big difference between an autopilot landing an an instrument landing system and a pilot gliding his plane to a perfect stop on the Hudson River.) Also worth pointing out that the CEO of Google (yes...I know his company tests driverless cars) isn't really more of an expert on the FAA certification process than the average person here. I think he's on the right side of the bet, but I'd also note that the avionics which assist the pilot in controlling the plane and monitoring what's going on have changed more in the last 50 years than any other aspect of commercial aircraft. Commercial considerations are a bigger factor than certification in new aircraft programme inertia: airlines' economies of scale hugely favour existing models, and expensive radical innovation in aircraft programmes can often be improved upon at lower research cost by rivals.
- wololo 14y agocontext: Eric Schmidt is not the CEO, but is a commercial pilot (source: http://usatoday30.usatoday.com/money/industries/technology/2007-05-15-google-schmidt-qa_N.htm http://usatoday30.usatoday.com/money/industries/technology/2...)
- rohern 14y agoYour points are common sense. You can therefore assume that other men, including the men you are criticizing, know them. Given this, and given that they are speaking publicly, I would wager that they have more access to data than you presume.
- general_failure 14y agoExcept common sense is not very common.
- fnordfnordfnord 14y agoCommon sense is the collection of prejudices acquired by age eighteen. -Albert Einstein
- snowwrestler 14y agoOr they are inserting themselves into the news cycle on this story for purposes other than strictly engineering. I don't know if that's what is happening here, but it is certainly not an uncommon PR strategy.
- fnordfnordfnord 14y agoYou think Musk is grandstanding in hopes that consumers will demand SpaceX rockets for commercial airline travel instead of Boeing 787's? Well, duh, I'd take a ride in a rocket over another boring commercial flight any day.
- willvarfar 14y agoI for one think it likely that Musk talks with a good grasp of the facts. But I will say on the PR angle, he does compete directly with the entrenched manufacturers in the space arena and all discredit and doubt cast would serve him well.
- simonh 14y ago
- niels_olson 14y ago> it's like claiming to know what happened with a race horse that died clear across the country because you know race horses. Wouldn't you first have to see the veterinarian's records on that horse as well as such things as dietary and other data before really being able to say anything at all. If the differential has 5 items, and the most likely is most likely by 99% just on demographics, then it's going to take a lot of lab data to refute that. Similarly, heat dissipation is a first-order problem in battery design. Especially in these high-capacity designs using high-density chemistries. What else is on the differential?
- jzwinck 14y agoWhat else? Shorting. Chemical impurities (less likely). Failed peripherals like fans (hopefully less likely to have this result, due to thermal cut-offs). Improper assembly. Those are my next candidates anyway, after a thermal design defect as you said (which is fairly broad).
- jlgreco 14y agoOf course all of those potential problems would be compounded by having large cells with poor isolation.
- fnordfnordfnord 14y ago>I'd be very interested in what they are saying if --and only if-- they had access to Boeing and FAA design and test data. Bollocks. Your analogies are crap too. Getting an FAA type certificate is a complicated, drawn out process, note, that doesn't make it a good process. I'm betting Musk has as much data about those batteries as Boeing, the FAA, or anyone else alive.
- venus 14y ago> I'm betting Musk has as much data about those batteries as Boeing, the FAA, or anyone else alive. You're betting that, are you? Based on a couple of paragraphs in a news article, you're betting that Mr. Musk has as much data as anyone alive - including the Japanese designers and manufacturers of the battery? If there were a viable way of determining the facts of the matter, I would be happy to bet pretty much any sum you cared to name against you.
- icelancer 14y ago>I'd be very interested in what they are saying if --and only if-- they had access to Boeing and FAA design and test data. This kind of walled garden horseshit is what ensures no transparency in government contracts.
- robomartin 14y agoJust wowndering. Are you the kind of person who would consider convicting someone without looking at the evidence?
- jlgreco 14y agoPublicly voicing concerns is comparable to convicting?
- jim-greer 14y agoYou seem to think that the burden of proof is on the critics. When an airplane has multiple failures, I'd say the burden of proof is on Boeing. Especially when the critics know a lot about the technology in question.