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Re: mdb1 post# 2716

Thursday, 06/30/2011 6:08:31 PM

Thursday, June 30, 2011 6:08:31 PM

Post# of 28686
The Army wouldn't make Kryron the standard. What they would do is make the performance of Kryron the new standard. "Performance of Kryron" is not to be construed as the ultimate performance of Kryron. They usually do not put the standard at the limit of product performance. They will put one performance level as the required with a second performance level as desired.
The order of spec requirement levels:

Ord (ultimate specification)
Final Acceptance (better than Ord requirements)
In Process/subassemply Acceptance (better than final acceptance)
Process Specifications (better than in process tests)
Design Specifications (better than process specifications)
Material Specifications (better than design specifications)
This is where Kryron specification would enter. It has to be good enough to be degraded by product design, manufacturing processes, material supplier variations, test errors at all levels, pass final acceptance within test error analysis limits, and finally be good enough to meet the ORD requirements.

Performance of a material is lost during the design and manufacturing processes. In addition, the design process has to take into account variability in Kryron from batch to batch. Kryron will have a material specification. All Kryron batches will not be the same. The objective for manufacture of Kryron is to get all batches, with a variability in performance, to meet the Kryron specification. This requires Kryron manufacturing to be tightly controlled including the characteristics of every material that goes into Kryron. The variability of each material that goes into the manufacture of Kryron will affect Kryron final acceptance. That is why manufacturing a "deliverable" product is so much more difficult that producing engineering prototypes. If any one of the component manufactures have a problem on their production line with quality control then Kryron cannot meet its specification.

This process is known as tiered specifications and tiered test limits. The further you get away from the shipping dock the tighter the specifications have to be. The objective is for the product to pass every level of test with some margin.

The specification I expect to see is a Terminator Body Armor like performance specification without reference to Bourque Industries or the Terminator line of body armor. This specification will not be as good as Kryron because it has to be designed into a product, manufactured and final acceptance tested. This specification will be at the ORD level which cannot be the same as Kryron or it could never be manufactured. Processes and tests are not perfect but are well known and understood.

Bourque has the opportunity to write the new government specification. If you write it, mark it draft, and hand it to the government, they will spend their time reviewing and approving rather than trying to write a specification about something they really don't understand. If you write it for them, they will be most happy to put their letterhead on it and show the boss what a good job they did. If you get what you want in the specification you really don't care who gets the credit.