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I designed and built a key electrical system to this plane during late-spring of 2007. I don't know whether I can say which one. Anyway, the company I worked fo

by micks56 17y ago

I designed and built a key electrical system to this plane during late-spring of 2007. I don't know whether I can say which one. Anyway, the company I worked for was at the end of the line as far as outsourcing goes. Boeing outsourced the design, development, and manufacturing to one the world's largest corporations (Company A), who outsourced it to another company of similar size (Company B), who then outsourced it to the much much smaller company that I worked for (Company C) some time in mid-Spring 07. We knew in May 07 that there was a 0% chance that the 787 would actually fly on 7/8/07; a critical component was still in development. For that certain critical component, Company A dictated to Company B which one to use and who to buy it from (Company D). The problem is that the part was still in development by Company D. The electrical component specifications significantly stretched what actually existed on the market at that time. I didn't think Company D would be successful in designing the critical component. It was certainly a big leap forward. We knew that Company D would not have the part done by July 07. The hope was August of that year. In June 07 my company successfully designed and built a few prototypes of the system we were tasked to build. They passed all specifications dictated by Boeing, Company A, and Company B. We dutifully delivered the prototypes to Company B in June 07. The only problem was critical component from Company D wasn't there, and therefore the 787 could not fly. I don't know whether Company D ever delivered. But I do know that Company B (the company that outsourced to us) ordered a few more of the product I designed at the end of last year, and the critical component from Company D was not supplied to my company. I don't know whether the part existed. But it doesn't seem likely since Company B would have had us put it in. My guess is that Company D, or a replacement outsourcer, was able to deliver some time at the beginning of this year, maybe Spring. Hence the two year delay. I no longer work at the company where I designed this system, so I no longer have any first hand knowledge of the goings on. But from what I read in the article, the root cause of the delays has not been fixed. I would put my money on further delays.

quizbiz 17y ago
How complicated can building a plane be? . . . Seriously, what a tale. Thanks for sharing but I remember seeing commercials for the 787, marketed as the response to the Airbus A380, as if Boeing was expecting me as a passenger to ask if I could fly in one next month.
- micks56 17y ago
  I honestly have no idea how complicated building a plane can be. What I designed required zero plane building knowledge. But given how long it takes and expensive it is, I think it is more difficult than it looks. There are technical difficulties, and then there are difficulties in dealing with massive, distributed teams. The second one increased problems managing the first, which is why we read that article today. Two of the main design constraints for planes are weight, and its close close relative, fuel efficiency. Consider those as important as actually being able to fly. The whole reason my project existed was to reduce weight and increase fuel efficiency. What made the critical component I talked about difficult to make was that it needed to be much more efficient than any of its type ever made before. Its efficiency would allow for less operating current, which would reduce the wire gauge needed throughout the plane, reduce weight by 1000s of pounds, and therefore save many gallons of fuel. It also allowed for another fuel efficiency gain; It reduced the number of systems operating via air or hydraulics. The air comes from the engine after the compressor stage but before fuel is added. These systems are inefficient because the air from the compressors is very hot and it must be cooled before use. That cooling operation takes electricity, and therefore wastes energy when compared to a system that just used electricity from the start. I should add that the critical component is not a discrete one like a transistor or resistor. Rather it is a system of its own, like a power supply is a system of its own, but we can buy one and as an engineer consider it a single component. I don't know Boeing's rationale for TV commercials either. It could be anything from putting the Boeing name in front of Americans for American pride when competing against European Airbus. Or maybe they know that the decision maker at a key potential customer loves NFL football, and Boeing blanketed his hometown team with ads during the games. Maybe the marketing department wanted to use up their yearly budget. Whatever the reason is, when hundreds of billions of dollars in orders are at stake like this, the ads aren't directed at people who purchase plane tickets. I am guessing the ads are out there to make sure that every plane purchasing decision maker absolutely knows that the 787 exists and that they should buy it, and making sure that every member of Congress (and their constituents) absolutely knows that the 787 exists and Americans should support it, as opposed to Airbus.
  - quizbiz 17y ago

by micks56 17y ago

quizbiz 17y ago

How complicated can building a plane be? . . . Seriously, what a tale. Thanks for sharing but I remember seeing commercials for the 787, marketed as the response to the Airbus A380, as if Boeing was expecting me as a passenger to ask if I could fly in one next month.

micks56 17y ago
I honestly have no idea how complicated building a plane can be. What I designed required zero plane building knowledge. But given how long it takes and expensive it is, I think it is more difficult than it looks. There are technical difficulties, and then there are difficulties in dealing with massive, distributed teams. The second one increased problems managing the first, which is why we read that article today. Two of the main design constraints for planes are weight, and its close close relative, fuel efficiency. Consider those as important as actually being able to fly. The whole reason my project existed was to reduce weight and increase fuel efficiency. What made the critical component I talked about difficult to make was that it needed to be much more efficient than any of its type ever made before. Its efficiency would allow for less operating current, which would reduce the wire gauge needed throughout the plane, reduce weight by 1000s of pounds, and therefore save many gallons of fuel. It also allowed for another fuel efficiency gain; It reduced the number of systems operating via air or hydraulics. The air comes from the engine after the compressor stage but before fuel is added. These systems are inefficient because the air from the compressors is very hot and it must be cooled before use. That cooling operation takes electricity, and therefore wastes energy when compared to a system that just used electricity from the start. I should add that the critical component is not a discrete one like a transistor or resistor. Rather it is a system of its own, like a power supply is a system of its own, but we can buy one and as an engineer consider it a single component. I don't know Boeing's rationale for TV commercials either. It could be anything from putting the Boeing name in front of Americans for American pride when competing against European Airbus. Or maybe they know that the decision maker at a key potential customer loves NFL football, and Boeing blanketed his hometown team with ads during the games. Maybe the marketing department wanted to use up their yearly budget. Whatever the reason is, when hundreds of billions of dollars in orders are at stake like this, the ads aren't directed at people who purchase plane tickets. I am guessing the ads are out there to make sure that every plane purchasing decision maker absolutely knows that the 787 exists and that they should buy it, and making sure that every member of Congress (and their constituents) absolutely knows that the 787 exists and Americans should support it, as opposed to Airbus.
- quizbiz 17y ago