WT?.......
PDR? Were we not told that the program maturity was such that they were 'essentially' at 'Milestone B'?
From https://fas.org/sgp/crs/weapons/R44463.pdf
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The development program began on Friday, October 23, 2015, when Under Secretary of Defense for Acquisition, Technology and Logistics Frank Kendall selected Northrop Grumman as the prime contractor. According to program officials, selection of a contractor constituted “Milestone B” in this acquisition, although it is not clear whether all of the required steps for a formal Milestone B review were carried out under the B-21’s rapid acquisition construct.
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According to the DoD Acquisition Process PDR happens at the end of Milestone B. Now we're a year into the program and we're just at the PDR? So that was Frank Kendall 'BS'.
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The Program Manager (PM) should conduct the PDR when all major design issues have been resolved and work can begin on detailed design. The PDR should address and resolve critical, system-wide issues.
The PDR should be conducted when the allocated baseline has been achieved, allowing detailed design of hardware and software configuration items to proceed. A rule of thumb is that 10 percent to 25 percent of product drawings and associated instructions should be complete, and that 100 percent of all safety-critical component (Critical Safety Items and Critical Application Items) drawings are complete.
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So now they "can begin" detailed design?
Let's hope that this is a very advanced PDR and that maturation is such that EMD goes very, very quickly and smoothly.