Boeing Assembles GPS IIF Satellites Using 'Pulse' Manufacturing Line
4/7/2012
Boeing is accelerating the assembly of its Global Positioning System (GPS IIF) satellites through the use of a pulse-line manufacturing approach. This process was adapted from the Boeing 737 airplane production line.
"Using this pulse-line approach, we are able to build up to six satellites per year," says Craig Cooning, vice president and general manager of Boeing Space & Intelligence Systems. "This is the highest satellite production rate in Boeing history, and it ensures we will deliver the remaining GPS IIF satellites on schedule."
Boeing is currently under contract for a total of 12 GPS IIF satellites for the US Air Force. Two are in orbit; two have been completed and are being stored until launch; and eight are in various stages of pulse-line production.
The next GPS IIF launch is scheduled during the third quarter of 2012. Boeing says it is prepared to deliver several GPS IIF satellites within the next year.
"Similar to an aircraft assembly line, the GPS IIF pulse line efficiently moves a satellite from one designated work area to the next at a fixed rate," says Jan Heide, GPS IIF program director. "Within the four pulse-line work centers, we've incorporated lean manufacturing processes, new tooling, and additional work-planning packages to improve efficiency and reduce cost."
The GPS pulse line can accommodate four satellites at any given time. Wait time between tasks is reduced or eliminated by staging necessary parts and tools at the point of use at each workstation, creating a smooth process flow. Along the pulse line, satellites flow to work centers dedicated to four manufacturing stages: vehicle assembly, initial test, thermal-vacuum testing, and final test. The line delivers one space vehicle to storage every two to three months.
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Mind, he declares, is an attribute everywhere accompanying matter, co-extensive and co-infinite with space. Our own animation is the sum or the resultant of an animation clinging to every particle that enters into the composition of our bodies. When our thoughts are affected by an external impulse, to suppose that this impulse proceeds from anything material is a delusion; it is produced by the mind belonging to the body which acts on our body; although in what sense this process is to be understood remains a mystery. Spinoza has clearly explained the doctrine of animal automatism, and shown it to be perfectly conceivable;569 but he has entirely omitted to explain how the parallel influence of one thought (or feeling) on another is to be understood; for although this too is spoken of as a causal relation, it seems to be quite different from the logical concatenation described as the infinite intellect of God; and to suppose that idea follows from idea like movement from movement would amount to a complete materialisation of mind; while our philosopher would certainly have repudiated Mr. Shadworth Hodgson’s theory, that states of consciousness are only connected through their extended substratum, as the segments of a mosaic picture are held together by the underlying surface of masonry. Nor can we admit that Spinoza entertained the theory, now so popular, according to which extension and consciousness are merely different aspects of a single reality. For this would imply that the substance which they manifest had an existence of its own apart from its attributes; whereas Spinoza makes it consist of the attributes, that is to say, identifies it with their totality. We are forced, then, to conclude that the proposition declaring thought and extension to be the same thing570 has no413 other meaning than that they are connected by the double analogy which we have endeavoured to explain. “Oh, he’s welcome to it,” Sandy cried. “I’ve turned over a new leaf!” “But—are they?” He pulled a wire out a trifle from the sheath. The sergeant spent more time upon the oaths with which he embellished the counter-question as to how he should know anything about it, than would have been consumed in a civil explanation. "Doctor, he can't die. He mustn't die," said Shorty in agony. "The regiment can't spare him. He's the best soldier in it, and he's my pardner." AND ENTERS UPON HIS PARENTAL RELATIONS TO LITTLE PETE SKIDMORE. 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